---
# === IDENTITY ===
id: signal-library/retail/detection-rules/2026
canonical_question: "What are the trigger definitions, compound signal rules, and scoring formula for retail distress detection?"
aliases:
  - "retail signal triggers"
  - "retail distress scoring formula"
  - "retail compound signal rules"
  - "retail detection logic"
entity_type: rule
domain: signal-library > retail > detection rules
region: global
jurisdiction: global
temporal_scope: 2024-2026

# === VERIFICATION ===
last_verified: 2026-07-16
confidence: 0.87
version: 1.1
first_published: 2026-03-30

# === TEMPORAL VALIDITY ===
temporal_validity:
  status: evolving
  last_breaking_change: null
  next_review: 2026-10-14
  change_sensitivity: high

# === RULE SCOPE ===
applies_to:
  domain: "signal-library > retail"
  price_range: null
  user_segment: "Signal pipeline operators, B2B sales intelligence teams"
  context: "Retail industry signal detection for distress and transformation buying triggers"

# === CONSTRAINTS ===
constraints:
  - "Q4 retail noise (October-December) inflates inventory, workforce, and customer signals by 30-60% — all single-signal triggers must apply seasonal dampening factors during Q4 or risk systematic false positives that waste outreach capacity [src1]"
  - "Compound signal rules require a minimum 30-day temporal overlap — signals detected more than 90 days apart should not be combined because the underlying conditions may have changed or been remediated [src3]"
  - "Required data is not uniformly obtainable: the formula assumes US/EU public-company filings (SEC 10-Q/10-K, Companies House), so private retailers lose 2-3 points of achievable score; and Trigger 4 has no self-service path since Glassdoor retired its public developer API — workforce sentiment now needs an enterprise Customer Insights agreement or licensed aggregator, and pipelines built on the old free API return no data rather than failing loudly [src2, src12]"
  - "Detection rules calibrated for $10M-$5B revenue retailers — micro-retailers (<$10M) produce too few observable signals for reliable scoring, and mega-retailers (>$5B) have procurement processes that signal detection cannot penetrate [src5]"
  - "Individual trigger thresholds (e.g., DIO >120 days, Glassdoor drop >0.5) are derived from 2024-2026 retail industry baselines and must be recalibrated annually as industry norms shift — 2026 base rates have already moved against Triggers 2 and 8 (see Key Properties), and using stale thresholds degrades detection accuracy by approximately 15-20% per year [src1, src8]"

# === SKIP CONDITIONS ===
skip_this_unit_if:
  - condition: "User needs the conceptual overview of retail distress patterns and target profiles, not the detection rules"
    use_instead: "signal-library/retail/overview/2026"
  - condition: "User needs to configure a specific data source integration (SEC EDGAR, job boards, review platforms, web monitoring) rather than the rules that consume it"
    use_instead: "signal-library/retail-sources/sec-financial-filings/2026"
  - condition: "User needs the generic signal taxonomy methodology applicable across all industries"
    use_instead: "consulting/signal-stack/signal-taxonomy-design/2026"
  - condition: "User has already-detected signals and needs to enrich, route, score, or deliver them to a sales team"
    use_instead: "signal-library/retail/scoring-delivery/2026"

# === AGENT HINTS ===
inputs_needed:
  - key: "detection_context"
    question: "What aspect of retail signal detection does the user need?"
    type: choice
    options:
      - "Single-signal trigger definitions and thresholds for a specific distress dimension"
      - "Compound signal rules for combining multiple triggers into high-confidence alerts"
      - "The scoring formula and how to calculate overall distress scores"
      - "Seasonal weighting and Q4 noise reduction calibration"
      - "False positive identification and calibration guidance"

# === DISTRIBUTION ===
canonical_source: "https://knowledgelib.io/signal-library/retail/detection-rules/2026"
suggested_citation: "Source: knowledgelib.io — AI Knowledge Library (verified 2026-07-16)"

# === RELATED UNITS ===
related_kos:
  depends_on:
    - id: "signal-library/retail-sources/sec-financial-filings/2026"
      label: "SEC Financial Filings Signal Source (Trigger 1, Trigger 8)"
    - id: "signal-library/retail-sources/customer-review-sentiment/2026"
      label: "Customer Review Sentiment Signal Source (Trigger 5)"
    - id: "signal-library/retail-sources/job-posting-monitor/2026"
      label: "Job Posting Monitor Signal Source (Trigger 4)"
    - id: "signal-library/retail-sources/website-tech-stack/2026"
      label: "Website Tech Stack Signal Source (Trigger 2)"
    - id: "signal-library/retail-sources/store-closure-filings/2026"
      label: "Store Closure and WARN Filings Signal Source (Trigger 6)"
    - id: "signal-library/retail-sources/employee-review-sentiment/2026"
      label: "Employee Review Sentiment Signal Source (Trigger 4)"
    - id: "signal-library/retail-sources/industry-trade-publications/2026"
      label: "Industry Trade Publications Signal Source (Trigger 7)"
    - id: "signal-library/retail-sources/supply-chain-announcements/2026"
      label: "Supply Chain Announcements Signal Source (Trigger 8)"
    - id: "signal-library/retail-sources/web-traffic-analytics/2026"
      label: "Web Traffic Analytics Signal Source (Trigger 2)"
    - id: "signal-library/retail-sources/earnings-call-nlp/2026"
      label: "Earnings Call NLP Signal Source (Compound Rule C)"
  related_to:
    - id: "signal-library/retail/overview/2026"
      label: "Retail Signal Library Overview"
    - id: "signal-library/retail/enrichment-mapping/2026"
      label: "Retail Signal Enrichment Mapping"
    - id: "signal-library/retail/scoring-delivery/2026"
      label: "Retail Signal Scoring and Delivery"
    - id: "signal-library/retail-sources/foot-traffic-analytics/2026"
      label: "Foot Traffic Analytics Signal Source"
    - id: "signal-library/retail-sources/social-media-sentiment/2026"
      label: "Social Media Sentiment Signal Source"
  often_confused_with:
    - id: "consulting/signal-stack/signal-taxonomy-design/2026"
      label: "Signal Taxonomy Design (industry-agnostic methodology, not retail-specific detection rules)"
  solves: []
  alternative_to: []

# === SOURCES ===
sources:
  - id: src1
    title: "The State of Fashion 2025"
    author: McKinsey & Company
    url: https://www.mckinsey.com/industries/retail/our-insights/state-of-fashion
    type: industry_report
    published: 2024-11-01
    reliability: authoritative
  - id: src2
    title: "Retail CFO Outlook 2025: Inventory and Working Capital Trends"
    author: Deloitte
    url: https://www2.deloitte.com/us/en/insights/industry/retail-distribution/retail-distribution-industry-outlook.html
    type: industry_report
    published: 2025-01-15
    reliability: authoritative
  - id: src3
    title: "The End of the Shopping Cart"
    author: Peter Beck
    url: https://knowledgelib.io/signal-library/retail/overview/2026
    type: primary_research
    published: 2026-01-15
    reliability: moderate_high
  - id: src4
    title: "How Brands Grow: What Marketers Don't Know"
    author: Byron Sharp
    url: https://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195573565.001.0001/acprof-9780195573565
    type: academic_paper
    published: 2010-03-01
    reliability: authoritative
  - id: src5
    title: "NRF State of Retail and the Consumer 2025"
    author: National Retail Federation
    url: https://nrf.com/research/state-retail-and-consumer
    type: industry_report
    published: 2025-01-15
    reliability: authoritative
  - id: src6
    title: "Stop Cold Emailing"
    author: Peter Beck
    url: https://knowledgelib.io/signal-library/retail/overview/2026
    type: primary_research
    published: 2026-02-15
    reliability: moderate_high
  - id: src7
    title: "The State of Fashion 2026: When the Rules Change"
    author: McKinsey & Company and The Business of Fashion
    url: https://www.mckinsey.com/industries/retail/our-insights/state-of-fashion
    type: industry_report
    published: 2025-11-17
    reliability: authoritative
  - id: src8
    title: "2026 Retail Industry Global Outlook"
    author: Deloitte
    url: https://www.deloitte.com/us/en/insights/industry/retail-distribution/retail-distribution-industry-outlook.html
    type: industry_report
    published: 2026-01-08
    reliability: authoritative
  - id: src9
    title: "NRF Forecasts 4.4% Annual Retail Sales Growth with New Economic Model"
    author: National Retail Federation
    url: https://nrf.com/media-center/press-releases/nrf-forecasts-4-4-annual-retail-sales-growth-with-new-economic-model
    type: industry_report
    published: 2026-03-18
    reliability: authoritative
  - id: src10
    title: "US Store Tracker Extra: Store Openings and Closures 2025 Review and 2026 Outlook"
    author: Coresight Research
    url: https://coresight.com/research/us-store-tracker-extra-store-openings-and-closures-2025-review-and-2026-outlook/
    type: industry_report
    published: 2026-01-27
    reliability: authoritative
  - id: src11
    title: "Bankruptcy Watch: Retailers Most At Risk After 2026 Opens With High-Profile Filings"
    author: Pamela N. Danziger (Forbes)
    url: https://www.forbes.com/sites/pamdanziger/2026/02/18/bankruptcy-watch-retailers-most-at-risk-after-2026-opens-with-high-profile-filings/
    type: industry_report
    published: 2026-02-18
    reliability: moderate_high
  - id: src12
    title: "Glassdoor API in 2026: Why Developers Are Switching to Web Scraping"
    author: agenthustler (DEV Community)
    url: https://dev.to/agenthustler/glassdoor-api-in-2026-why-developers-are-switching-to-web-scraping-na0
    type: community_resource
    published: 2026-04-29
    reliability: moderate
---

# Retail Signal Detection Rules: Trigger Definitions, Compound Logic, and Scoring Formula

## What are the trigger definitions, compound signal rules, and scoring formula for retail distress detection?

## Summary

Retail distress detection runs on 8 weighted single-signal triggers — inventory distress (1.5x), store contraction (1.3x), digital gap (1.2x), workforce stress (1.1x), leadership change / customer decay / supply chain restructuring (1.0x each), and competitive pressure (0.8x). Score each fired trigger with `Composite Score = SUM(triggered_signal_weight * signal_confidence) / MAX_POSSIBLE_SCORE * 10`, where confidence reflects source reliability (SEC filing 1.0 down to review sentiment 0.6). Three compound rules adjust the result: A (T1+T4+T5 within 60 days) adds +2.0 at 82% PPV, B (T2+T3+T7 within 90 days) adds +1.5 at 75% PPV, and C (extreme T1 + T6 + defensive earnings language) *caps* the score at 5.0-6.0 because the budget is frozen. Route on the composite: <6.0 watchlist, 6.0-7.4 active pipeline, 7.5+ immediate outreach. Apply Q4 dampening (T1 x0.5, T4 x0.6, T5 x0.7) from October 1 to January 15. [src1, src3, src6] Thresholds are 2024-2026 baselines and decay 15-20% per year: as of the 2026 refresh, Trigger 2 and Trigger 8 have both lost discriminating power against shifted industry base rates, and Trigger 4 has lost its self-service data source. [src8, src12]

## Rule

Apply an 8-trigger detection framework to identify retail distress and transformation buying intent: evaluate each target retailer against inventory distress, digital gap, leadership change, workforce stress, customer decay, store contraction, competitive pressure, and supply chain restructuring triggers. Score each triggered signal on a 0-10 scale using the weighted formula below, combine co-occurring signals using compound rules to elevate confidence, and apply Q4 seasonal dampening to prevent false positives during October-December holiday distortion. [src1, src3] A retailer must score 6.0+ on the composite formula to enter active pipeline, and 7.5+ to justify immediate outreach — scores below 6.0 go to watchlist for re-evaluation at next quarterly data refresh. [src6]

## Evidence

McKinsey's State of Fashion 2025 reports that 20-30% of fashion inventory goes unsold annually, with markdown reserves increasing 15-25% YoY among distressed retailers — validating inventory distress as the highest-reliability single trigger with documented 70%+ positive predictive value when DIO exceeds 120 days. [src1] Deloitte's Retail CFO Outlook found that retailers with inventory write-downs exceeding 8% of COGS in consecutive quarters had a 73% probability of initiating transformation projects within 18 months, compared to 12% baseline for the industry. [src2] NRF data shows that retailers posting 3+ simultaneous supply chain or logistics roles have a 4.2x higher probability of being in active vendor evaluation than those with normal hiring patterns, and Glassdoor rating declines of 0.5+ points in supply chain teams correlate with 65% probability of operational restructuring within 12 months. [src5] Internal signal pipeline testing across 200+ retail targets (2024-2025) demonstrated that compound signals (3+ co-occurring triggers) achieved 82% positive predictive value versus 34% for single triggers — the compound signal rules below encode these validated combinations. [src3]

The 2026 data refresh confirms the framework's direction but moves three of its baselines. Demand is not collapsing: NRF projects US retail sales growing 4.4% to $5.6 trillion in 2026 against a 3.6% ten-year average, so distress in 2026 is a margin-and-execution story rather than a top-line one. [src9] McKinsey's State of Fashion 2026 forecasts only low single-digit growth (Europe 1-2%, US and China 1-3%) with tariffs named the number-one hurdle, and 46% of executives expect conditions to worsen versus 39% a year earlier — pressure is broadening rather than concentrating in a distressed minority. [src7] Meanwhile the closure wave that made Trigger 6 productive is receding: Coresight recorded 8,270 US store closures in 2025 against a revised 8,825 in 2024 and projects roughly 7,900 in 2026, a 4.5% decline and the lowest in three years, while retail bankruptcies fell from 50 in 2024 to 32 in 2025 with 2026 tracking in line with 2025. [src10, src11] Crucially, Deloitte's 2026 outlook (330 retail executives, 86% at $1B+ revenue) shows two behaviors this card treats as distress signals have become majority or near-majority norms: 66% plan onshoring, nearshoring, or supplier diversification if input costs rise, and only 26-30% have AI deployed in personalization or supply chain visibility. [src8] Both facts cut directly against the specificity of Triggers 8 and 2 respectively — see the recalibration notes in Key Properties.

## Key Properties

- **Trigger 1 — Inventory Distress**: Markdown reserves increase >20% YoY in 10-Q filing, Days Inventory Outstanding (DIO) exceeds 120 days (industry median: 75-90 days), or obsolescence/write-down charges spike above 8% of COGS. Any one sub-condition fires this trigger. Signal weight: 1.5x (highest reliability single trigger). Data source: SEC EDGAR 10-Q/10-K filings, quarterly. [src1] [src2]
- **Trigger 2 — Digital Gap**: No AI/ML tooling detected in technology stack (Wappalyzer/BuiltWith scan), Core Web Vitals failing on 2+ of 3 metrics (LCP >2.5s, INP >200ms, CLS >0.1), or zero evidence of GEO (Generative Engine Optimization) — no structured data, no llms.txt, no AI-readable product feeds. Any one sub-condition fires. Signal weight: 1.2x. Data source: automated web monitoring, monthly. [src3] **2026 recalibration**: the "no AI/ML tooling" sub-condition is no longer discriminating on its own — Deloitte's 2026 survey puts deployed AI at just 26% for personalized recommendations and 30% for supply chain visibility, so absence of AI describes roughly 70% of retailers and fires near-universally. Until adoption crosses ~50% (Deloitte projects 35% and 41% respectively within 12 months), require the AI sub-condition to co-occur with a failing Core Web Vitals or zero-GEO sub-condition before counting T2 as fired, or treat T2 as a 0.8x amplifier rather than a 1.2x trigger. [src8]
- **Trigger 3 — Leadership Change**: CTO, CDO, VP Digital, or VP E-commerce hired or departed within the last 90 days. New hire signals transformation intent; departure signals either strategic pivot or organizational instability. Signal weight: 1.0x (context-dependent — new hire is bullish, departure without replacement is bearish). Data source: LinkedIn Sales Navigator alerts, press releases. [src5]
- **Trigger 4 — Workforce Stress**: Supply chain team Glassdoor ratings drop >0.5 points within 90 days, OR 3+ urgent logistics/supply chain/warehouse roles posted simultaneously on the company's careers page. Either sub-condition fires. Signal weight: 1.1x. Data source: employee-review sentiment (see below), Indeed/LinkedIn job scraping, weekly. [src5] **2026 data-source change**: Glassdoor's public developer API is retired and no new keys are issued, so the ratings sub-condition has no self-service path — it now requires an enterprise Glassdoor Customer Insights agreement or a licensed aggregator. Pipelines still pointed at the legacy API return empty rather than erroring, which silently suppresses T4 and biases composite scores downward. Verify the ratings feed returns data before trusting any T4-negative result; if unavailable, fall back to the job-posting sub-condition alone and note the reduced coverage. [src12]
- **Trigger 5 — Customer Decay**: Trustpilot or Google Business rating drops >0.3 points within 90 days, with complaint clustering around stock-outs, shipping delays, or fulfillment errors (not product quality — product complaints indicate different problems). Signal weight: 1.0x. Data source: review platform APIs, weekly NLP clustering. [src3]
- **Trigger 6 — Store Contraction**: WARN Act filing (federal or state), or 2+ store closure announcements within a 6-month window. WARN filings are the highest-reliability sub-trigger because they are legally mandated 60 days before mass layoffs. Signal weight: 1.3x. Data source: state WARN databases, press monitoring. [src5] **2026 recalibration**: the closure wave is receding — Coresight projects ~7,900 US closures in 2026 (-4.5% YoY, lowest in three years) versus 8,270 in 2025 and 8,825 in 2024, and retail bankruptcies fell from 50 in 2024 to 32 in 2025. Keep the 1.3x weight and the 2-closure threshold: a scarcer signal against a shrinking base rate is *more* discriminating, not less. Expect fewer T6 fires per quarter and do not loosen the threshold to refill pipeline volume — that trades precision for recall in the one trigger where precision is highest. [src10, src11]
- **Trigger 7 — Competitive Pressure**: 2+ direct competitors (same retail segment, similar revenue band) announce AI commerce initiatives, personalization platform deployments, or autonomous supply chain projects while the target retailer has no equivalent public activity. Signal weight: 0.8x (lowest weight — competitive pressure alone rarely triggers buying, but amplifies other signals). Data source: competitor press releases, conference presentations, technology vendor case studies. [src3]
- **Trigger 8 — Supply Chain Restructuring**: Public announcement of nearshoring initiative, primary supplier switching (changing >20% of supplier base), or logistics hub relocation/addition. These indicate operational transformation already in progress — the retailer is actively spending on change and may be receptive to adjacent solutions. Signal weight: 1.0x. Data source: SEC filings (supply chain risk factors), press releases, import/export databases. [src2] **2026 recalibration**: nearshoring intent is now a majority behavior, not a distinguishing signal — 66% of retailers in Deloitte's 2026 survey plan onshoring, nearshoring, or supplier diversification if input costs rise, largely as tariff response rather than distress. A bare nearshoring announcement should no longer fire T8; require the supplier-switching (>20% of base) or logistics-hub sub-condition, which remain rare and capital-committing, or drop T8 to 0.8x when only the nearshoring sub-condition is present. [src8]
- **Scoring Formula**: `Composite Score = SUM(triggered_signal_weight * signal_confidence) / MAX_POSSIBLE_SCORE * 10`, where signal_confidence is 0.0-1.0 based on data source reliability (SEC filing = 1.0, job posting = 0.8, web scan = 0.7, review sentiment = 0.6). Maximum possible score = 10.0 (all 8 triggers fired at 1.0 confidence). Threshold: 6.0+ = active pipeline, 7.5+ = immediate outreach, <6.0 = watchlist. [src3] [src6]
- **Seasonal Weighting (Q4 Dampening)**: During October 1 - January 15, apply 0.5x multiplier to Trigger 1 (inventory builds are normal), 0.6x to Trigger 4 (temporary seasonal hiring inflates workforce metrics), and 0.7x to Trigger 5 (holiday shipping volume creates transient customer complaints). Triggers 2, 3, 6, 7, 8 retain full weight year-round. After January 15, restore full weights and re-score — signals that persist through the holiday correction period are high-confidence structural signals. [src1] [src5]
- **Compound Rule A — Operational Crisis**: Inventory distress (T1) + workforce stress (T4) + customer decay (T5) co-occurring within 60 days = HIGH CONFIDENCE operational crisis. Composite score receives +2.0 bonus (additive, not multiplicative). Expected positive predictive value: 82%. This combination indicates a retailer whose supply chain is failing visibly — inventory is backing up, workers are stressed/leaving, and customers are experiencing the downstream effects. Action: immediate outreach with operational transformation positioning. [src3]
- **Compound Rule B — Transformation Buyer**: Digital gap (T2) + leadership change (T3, new hire variant only) + competitive pressure (T7) co-occurring within 90 days = HIGH CONFIDENCE transformation buyer. Composite score receives +1.5 bonus. Expected positive predictive value: 75%. This combination indicates a retailer that recognizes its digital deficit (new digital leader hired) while competitors advance — the new leader typically has 90-180 day mandate to select vendors. Action: immediate outreach with digital transformation positioning, target the new hire directly. [src3] [src6]
- **Compound Rule C — Distressed but Budget-Constrained**: Financial stress (T1, markdown reserves >30% YoY increase) + store contraction (T6) + defensive language in earnings call transcripts (detected via NLP — phrases like "challenging environment," "strategic review," "cost optimization," "rationalizing footprint") = DISTRESS confirmed but budget likely frozen or restricted. Composite score capped at 5.0-6.0 regardless of other signals. Action: watchlist only — do not invest outreach resources. Re-evaluate when earnings language shifts to "investing in growth," "transformation," or "next chapter." [src2] [src5]
- **False Positive Calibration**: Single triggers alone produce 55-66% false positive rates. Require 2+ co-occurring triggers for active pipeline entry. Seasonal false positive rate during Q4 without dampening: 45% (vs 18% with dampening applied). Recalibrate trigger thresholds quarterly by comparing triggered signals against known outcomes (did the retailer buy within 18 months?). If false positive rate exceeds 35% in any quarter, tighten the weakest trigger threshold by 20%. [src3]

## Conditions

- **Applies when**: Target retailer is within $10M-$5B annual revenue, operates in US or EU markets, has public financial filings or sufficient digital/workforce signal surface area to compensate, and the evaluator has access to at least 4 of the 8 signal sources (SEC filings, web monitoring, job board data, review platforms, WARN databases, LinkedIn, competitor intelligence, import/export data)
- **Does NOT apply when**: Target is a private retailer with no public filings AND limited digital presence (reduces maximum achievable signal coverage below reliable scoring threshold); target is above $5B revenue (procurement process bypasses signal-driven outreach); target operates exclusively in APAC, LATAM, or MEA (different distress patterns and data availability); target is a pure marketplace (Amazon, eBay) rather than a retailer with owned inventory
- **Confidence degrades when**: Fewer than 4 signal sources are available (composite score ceiling drops proportionally); trigger thresholds have not been recalibrated in >12 months; seasonal dampening weights were not updated for current fiscal year; the retail segment is undergoing structural disruption that changes baseline metrics (e.g., pandemic-era inventory patterns invalidated 2019 baselines)

## Constraints
<!-- Agents: read this section before recommending this rule.
     These are hard boundaries on when and how it applies. -->

- Q4 retail noise (October-December) inflates inventory, workforce, and customer signals by 30-60% — apply seasonal dampening factors or accept systematic false positive contamination [src1]
- Compound signal rules require 30-90 day temporal overlap — signals more than 90 days apart must not be combined because underlying conditions may have been remediated [src3]
- Private retailers without SEC filings lose Trigger 1 (inventory distress from financial filings) and partially lose Trigger 8 (supply chain restructuring) — maximum composite score drops by approximately 25%, requiring compensating signals [src2]
- All trigger thresholds (DIO >120 days, Glassdoor drop >0.5, review drop >0.3, etc.) are calibrated against 2024-2026 US/EU retail baselines — using these thresholds for other time periods or geographies without recalibration produces unreliable results [src5]
- Compound Rule C (distressed but budget-constrained) acts as a cap, not a boost — even if other high-confidence compounds would apply, the presence of store contraction + defensive earnings language should suppress outreach investment [src2]

## Rationale

Retail distress manifests across multiple observable dimensions simultaneously because the underlying causes — demand shifts, supply chain rigidity, digital capability gaps — cascade through operations. [src1] A single signal (e.g., inventory buildup) has multiple possible explanations including normal seasonality, one-time purchasing decisions, or strategic stockpiling. Compound signals dramatically narrow the explanation space: inventory distress combined with workforce stress and customer complaints has very few explanations other than genuine operational crisis. [src3] The scoring formula converts qualitative signal detection into a quantitative prioritization system that prevents sales teams from chasing low-probability targets while ensuring high-probability targets receive immediate attention — solving the resource allocation problem that makes signal-driven outreach economically viable. [src6]

## Framework Selection Decision Tree

```
START — User needs retail signal detection rules
├── What's the primary need?
│   ├── Understanding what retail distress looks like conceptually
│   │   └── Retail Signal Library Overview [signal-library/retail/overview/2026]
│   ├── Configuring specific data sources (SEC EDGAR, job boards, web monitoring)
│   │   └── Individual Signal Source Cards [signal-library/retail-sources/*/2026]
│   ├── Setting trigger thresholds, compound rules, and scoring formulas
│   │   └── Retail Signal Detection Rules ← YOU ARE HERE
│   └── Enriching detected signals with firmographic and contact data
│       └── Retail Signal Enrichment Mapping [signal-library/retail/enrichment-mapping/2026]
├── Is the target industry retail specifically?
│   ├── YES --> Use these retail-calibrated detection rules
│   └── NO --> Use Signal Taxonomy Design [consulting/signal-stack/signal-taxonomy-design/2026]
│             and build industry-specific thresholds from scratch
├── Does the user have access to SEC filing data?
│   ├── YES --> Full 8-trigger framework applies
│   └── NO --> Remove Trigger 1 (inventory distress from filings), compensate
│             with increased weight on Triggers 2, 4, 5 (digital, workforce, customer)
└── Is it currently Q4 (October-January 15)?
    ├── YES --> Apply seasonal dampening: T1 × 0.5, T4 × 0.6, T5 × 0.7
    └── NO --> Use full trigger weights
```

## Application Checklist

### Step 1: Verify Signal Source Coverage
- **Inputs needed**: List of available data sources (SEC EDGAR access, web monitoring tools, job board API subscriptions, review platform access, WARN database access, LinkedIn Sales Navigator, competitor intelligence feeds, import/export databases)
- **Output**: Coverage map — which of the 8 triggers can be evaluated with available data, and the maximum achievable composite score given coverage gaps
- **Constraint**: If fewer than 4 of 8 triggers can be evaluated, the composite score is unreliable for pipeline qualification. Either acquire additional data sources or use qualitative assessment instead of the scoring formula. [src3]

### Step 2: Calibrate Trigger Thresholds for Current Period
- **Inputs needed**: Industry baseline metrics for current year (DIO median, Glassdoor averages, review score baselines, typical hiring volumes by company size), current date (for seasonal weighting determination)
- **Output**: Calibrated threshold table — each trigger's firing conditions adjusted for current industry baselines, with Q4 dampening factors applied if applicable
- **Constraint**: Never use thresholds older than 12 months without recalibration. Industry baselines shift due to macroeconomic conditions, supply chain disruptions, and consumer behavior changes. Using stale thresholds degrades accuracy by 15-20% per year of staleness. [src1] The 2026 refresh is a worked example of why: two triggers (T2 digital gap, T8 supply chain restructuring) lost specificity because the behaviors they detect became industry norms, and one (T4 workforce stress) lost its data path entirely — none of which is visible from the trigger definitions alone. Recalibrate against current base rates, not just current thresholds: a trigger that fires on >50% of the population is a description of the industry, not a signal. [src8, src12]

### Step 3: Evaluate Target Retailers Against All Available Triggers
- **Inputs needed**: Target retailer list with identifiers (ticker symbol, domain, company name), calibrated threshold table from Step 2, raw data from each signal source
- **Output**: Trigger evaluation matrix — each retailer scored against each available trigger (fired/not fired, confidence level 0.0-1.0, date of signal detection, supporting evidence)
- **Constraint**: Record the date of each signal detection. Compound rules require temporal overlap (30-90 day window). Signals without timestamps cannot be used in compound rule evaluation. [src3]

### Step 4: Apply Compound Rules and Calculate Composite Scores
- **Inputs needed**: Trigger evaluation matrix from Step 3 with timestamps, compound rule definitions (A: T1+T4+T5 within 60 days, B: T2+T3+T7 within 90 days, C: T1-extreme+T6+defensive-language)
- **Output**: Scored retailer list — composite score (0-10), compound rule matches, pipeline classification (watchlist <6.0, active pipeline 6.0-7.4, immediate outreach 7.5+), and Compound Rule C cap flag
- **Constraint**: Compound Rule C overrides other compound rules. If a retailer matches Rule C (distressed but budget-constrained), cap the score at 5.0-6.0 and classify as watchlist regardless of other compound matches. Do not invest outreach resources in Rule C matches. [src2]

### Step 5: Validate and Iterate
- **Inputs needed**: Scored retailer list from Step 4, known outcome data (which retailers from previous scoring cycles actually purchased within 18 months), current false positive rate
- **Output**: Validation report — positive predictive value by score tier, false positive rate by trigger and compound rule, recommended threshold adjustments for next cycle
- **Constraint**: If false positive rate exceeds 35% in any quarter, tighten the weakest trigger threshold by 20% before next scoring cycle. If positive predictive value for 7.5+ scores drops below 60%, investigate whether compound rule bonuses need adjustment. [src3]

## Decision Logic

### If a retailer scores 7.5+ and matches no Compound Rule C condition
--> Route to immediate outreach this week. Lead with the positioning implied by the dominant compound: operational transformation for Rule A, digital transformation aimed at the new digital leader for Rule B. Score decay is real — a 7.5+ signal is stalest on the day it ages past its compound window. [src3, src6]

### If a retailer scores 6.0-7.4
--> Enter active pipeline but do not fast-track. Require a second confirming trigger inside the compound window before investing outreach resources, since single triggers carry 55-66% false positive rates. [src3]

### If a retailer matches Compound Rule C (extreme T1 + T6 + defensive earnings language)
--> Cap the score at 5.0-6.0 and watchlist it regardless of any other compound match. Do not invest outreach. Re-evaluate when earnings language shifts from "cost optimization" / "strategic review" to "investing in growth" / "transformation" — roughly 30% convert to active pipeline within 12-18 months. [src2, src6]

### If the evaluation date falls between October 1 and January 15
--> Apply Q4 dampening (T1 x0.5, T4 x0.6, T5 x0.7), leave T2/T3/T6/T7/T8 at full weight, and re-score after January 15. Signals surviving the correction are structural and become the highest-confidence Q1 targets. Without dampening, expect a 45% Q4 false positive rate versus 18% with it. [src1, src5]

### If Trigger 2 fired only because no AI/ML tooling was detected
--> Do not count T2 as fired. With deployed AI at 26-30% of retailers in 2026, absence of AI describes the majority and carries almost no information. Require a co-occurring Core Web Vitals failure or zero-GEO condition, or demote T2 to a 0.8x amplifier. [src8]

### If Trigger 8 fired only on a nearshoring announcement
--> Do not count T8 as fired. 66% of retailers plan nearshoring or supplier diversification as tariff response, so the announcement is a baseline behavior. Require supplier switching >20% of base or a logistics hub move — both capital-committing and still rare. [src8]

### If the Glassdoor ratings feed returns no data for a target
--> Treat T4 as unmeasured, not as not-fired. The retired public API returns empty rather than erroring, so a T4-negative may be a data outage. Score on the job-posting sub-condition alone, lower the achievable maximum accordingly, and flag reduced coverage on the record. [src12]

### If fewer than 4 of the 8 triggers can be evaluated for a target
--> Do not use the composite score for qualification. The ceiling drops proportionally and cross-target ranking becomes invalid. Acquire the missing sources or fall back to qualitative assessment. [src3]

## Anti-Patterns

### Wrong: Treating all 8 triggers as equal and scoring without weights
Teams assign each trigger equal weight (1.0x) and sum raw trigger counts. A retailer with 3 weak triggers (competitive pressure, digital gap, leadership change) scores the same as one with 3 strong triggers (inventory distress, store contraction, workforce stress). This produces rankings where superficially multi-signal retailers outrank genuinely distressed ones. [src3]

### Correct: Apply signal weights reflecting predictive reliability
Use calibrated weights: inventory distress 1.5x, store contraction 1.3x, digital gap 1.2x, workforce stress 1.1x, leadership change/customer decay/supply chain restructuring 1.0x, competitive pressure 0.8x. Weights reflect empirically observed positive predictive values from 2024-2025 signal pipeline testing. [src3]

### Wrong: Running Q4 detection without seasonal dampening
Teams detect signals through October-December using full-year thresholds. Inventory builds for holiday season fire Trigger 1 for 40%+ of retailers. Temporary holiday hiring fires Trigger 4. Holiday shipping volume spikes fire Trigger 5. Result: the pipeline fills with false positives that waste January-February outreach capacity on retailers experiencing normal seasonal patterns. [src1] [src5]

### Correct: Apply Q4 dampening factors and re-score after January 15
During October 1 - January 15, multiply Trigger 1 confidence by 0.5, Trigger 4 by 0.6, and Trigger 5 by 0.7. After January 15, restore full weights and re-evaluate. Signals that persist through the holiday correction period are structural, not seasonal — these are the highest-confidence Q1 outreach targets. [src5]

### Wrong: Combining signals detected months apart as if they are concurrent
A retailer showed inventory distress in Q1 filings (March), workforce stress on Glassdoor in August, and customer decay in November. The team combines all three and applies Compound Rule A (operational crisis), triggering immediate outreach. In reality, the Q1 inventory issue may have been resolved by March, the Glassdoor signal may reflect a single bad quarter, and the November customer complaints may be seasonal. There is no evidence of concurrent operational failure. [src3]

### Correct: Enforce temporal overlap windows for compound rules
Compound Rule A requires all three triggers within a 60-day window. Compound Rule B requires all three within 90 days. If signals fall outside these windows, they are individual triggers with individual weights — no compound bonus applies. Temporal proximity is what converts coincidence into causation evidence. [src3]

### Wrong: Pursuing Compound Rule C matches with aggressive outreach
A retailer matches Rule C — financial stress (markdown reserves >30% YoY), store contraction (WARN filing + 4 closures), and defensive earnings language ("challenging environment," "strategic review"). The team scores this as high-distress and invests outreach resources. The retailer's response: budget freeze, no new vendor evaluations, executive team focused on cost cutting. The outreach was correctly targeted but incorrectly timed. [src2]

### Correct: Watchlist Rule C matches and monitor for language shift
Place Rule C matches on a quarterly re-evaluation watchlist. Monitor earnings call transcripts for language shift from defensive ("cost optimization," "rationalizing") to offensive ("investing in growth," "transformation," "next chapter"). This language shift typically precedes budget unfreezing by 1-2 quarters. Time outreach to coincide with the shift, not the initial distress detection. [src6]

## Counter-Arguments

- Single-trigger outreach can work in specific contexts: when the signal is extremely high-confidence (e.g., WARN filing for a retailer you already have a relationship with), the compound rule requirement may delay action that a faster competitor captures. The counter is that this scenario represents <5% of opportunities and relationship-based outreach is fundamentally different from signal-driven prospecting. [src6]
- Scoring formulas create false precision — a retailer scoring 7.6 is not meaningfully different from one scoring 7.4, yet the threshold system treats them differently. The counter is that any prioritization system requires cutoffs, and the alternative (no scoring, manual evaluation of every signal) does not scale beyond 50 targets. [src4]
- Competitive pressure (Trigger 7) at 0.8x weight may be undervalued in fast-moving markets where falling behind on AI commerce is existential. The counter is that competitive pressure alone almost never triggers buying — it requires internal recognition (leadership change) or operational pain (inventory/customer distress) to convert awareness into action. [src3]

## Common Misconceptions

- **Misconception**: More signals always mean higher confidence — a retailer triggering 6 of 8 signals is always a better prospect than one triggering 3.
  **Reality**: Signal quality outweighs signal quantity. Three high-confidence triggers with strong temporal overlap (Compound Rule A or B) produce higher positive predictive value (75-82%) than six low-confidence triggers without compound rule matches (PPV ~40%). The compound rules exist specifically because certain combinations have disproportionate predictive power that raw trigger counts miss. [src3]

- **Misconception**: The scoring formula produces objective, comparable scores across different retailers and time periods.
  **Reality**: Scores are relative to the calibration period's industry baselines. A score of 7.5 in Q1 2025 and a score of 7.5 in Q1 2026 may represent different levels of distress if industry baselines have shifted. Scores should be used for within-period ranking (which retailers to contact first this quarter), not cross-period comparison (is this retailer more distressed than one scored last year). [src1]

- **Misconception**: Q4 seasonal dampening means ignoring Q4 signals entirely — just pause detection from October through December.
  **Reality**: Q4 dampening reduces weight on 3 specific triggers (inventory, workforce, customer) while maintaining full weight on 5 others (digital gap, leadership change, store contraction, competitive pressure, supply chain restructuring). Some of the highest-value signals — WARN filings, CTO departures, competitor AI announcements — are equally valid in Q4. Pausing detection entirely means missing these signals during a period when competitors may also be pausing. [src5]

- **Misconception**: Compound Rule C (distressed but budget-constrained) means the retailer will never buy.
  **Reality**: Rule C means the retailer should not receive outreach investment now. Budget-constrained distress is often temporary — restructuring takes 2-4 quarters, after which surviving retailers typically enter aggressive investment cycles. The watchlist classification preserves the signal intelligence for re-engagement when earnings language shifts. Approximately 30% of Rule C matches become active pipeline within 12-18 months. [src2]

## Comparison with Similar Rules

| Rule/Framework | Key Difference | When to Use |
|---|---|---|
| Retail Signal Detection Rules (this card) | 8-trigger, compound-rule, scored framework calibrated specifically for retail distress and transformation buying | When building or operating a retail-specific signal detection pipeline with quantitative scoring |
| Signal Taxonomy Design | Industry-agnostic methodology for classifying and prioritizing signals | When designing signal detection for a non-retail industry or learning the general approach before specializing |
| Traditional Lead Scoring | Engagement-based scoring using website visits, content downloads, webinar attendance | When only seller-side engagement data is available (significantly lower predictive value for retail — retail buyers do not consume vendor content like enterprise software buyers) |
| Bombora / 6sense Intent Data | Third-party intent signals from content consumption across publisher networks | When supplementing retail signal detection with digital intent data — useful as an input to Trigger 2 (digital gap) but insufficient as a standalone detection system for retail distress |
| Altman Z-Score | Financial distress prediction model using 5 accounting ratios | When evaluating pure financial distress probability — useful as an input to Trigger 1 but does not capture digital, workforce, customer, or competitive dimensions |
| RapidRatings FHR / Core Health Score | Subscription 0-100 financial health ratings; FHR predicts 12-month survival, CHS medium-term health. Over 90% of bankruptcies occur at FHR <=40 (<=20 = very high risk) | When a licensed feed is available and the question is solvency rather than buying intent — a strong Trigger 1 confidence input and a useful Compound Rule C confirmation, but it scores survival, not budget or receptiveness [src11] |

## When This Matters

Fetch this when a user needs to configure, calibrate, or troubleshoot a retail signal detection pipeline — specifically the trigger definitions, firing thresholds, compound signal combination rules, composite scoring formula, seasonal dampening weights, or false positive calibration. Also fetch when a user asks how to score retail targets for distress or transformation buying intent, how to combine multiple retail signals into actionable alerts, what thresholds to use for inventory/workforce/customer/digital signals in retail, or how to handle Q4 seasonal noise in retail signal detection.

## Related Units

- [Retail Signal Library Overview](/signal-library/retail/overview/2026)
- [Retail Signal Enrichment Mapping](/signal-library/retail/enrichment-mapping/2026)
- [Retail Signal Scoring and Delivery](/signal-library/retail/scoring-delivery/2026)
- [SEC Financial Filings Signal Source](/signal-library/retail-sources/sec-financial-filings/2026)
- [Customer Review Sentiment Signal Source](/signal-library/retail-sources/customer-review-sentiment/2026)
- [Employee Review Sentiment Signal Source](/signal-library/retail-sources/employee-review-sentiment/2026)
- [Store Closure and WARN Filings Signal Source](/signal-library/retail-sources/store-closure-filings/2026)
- [Signal Taxonomy Design](/consulting/signal-stack/signal-taxonomy-design/2026)
