Platform · What you get

Accessing our promotional email repository

A point-in-time data feed for your models, a dashboard for your analysts, a Claude MCP server for plain-English questions, and actionable insights for your investment team.

5+ yrsof point-in-time history, so backtests only see what was knowable each week
11volume and discount indices measuring how brands promote, plus a composite
300+consumer brands tracked, keyed to point-in-time tickers and web domains

01 · Data feed

Point-in-time promotional indices, back more than five years

Each row is one brand for one period: the point-in-time ticker, the web domain, a start and end date, and a set of indices built from the promotional email that brand sent. Volume indices measure how much a brand is promoting. Discount indices measure how deep the offers go.

Ticker point in timeDomainStartDateEndDate

VolumeHow much a brand promotes

PromotionalVolumeIndex
All promotional email, with or without an offer ("check out our new spring apparel", "10% off").
DiscountVolumeIndex
Promotions that imply a price cut, percent or dollar (10% off, BOGO).
NotionalDiscountVolumeIndex
Promotions with a dollar-value discount ($10 off).
SteepDiscountVolumeIndex
Promotions with discounts of 40% or more ($40 off $100, BOGO).
ZeroPercentVolumeIndex
Promotions with no percent discount: new arrivals, launches, brand stories.
AverageDiscountVolumeIndex
Promotional volume weighted by its average discount.

DiscountHow deep the offers go

EffectiveDiscountIndex
Mean discount across all volume. 99 emails at 0% and one at 90% off is a 1% effective discount.
20PercentileDiscountIndex
Discount at the 20th percentile of discounted volume, the shallow end of the range.
80PercentileDiscountIndex
Discount at the 80th percentile, the deep end of the range.
MaxDiscountIndex
The deepest percentage discount seen in the period.
CompositeCompositePromotionalIndex

A proprietary index built from an ensemble of the volume and discount measures above.

Subsets nest: steep and notional discounts sit inside DiscountVolumeIndex, which sits inside PromotionalVolumeIndex. Full data dictionary (PDF) →

02 · Dashboard

See the creative and the trend behind any campaign

Pick a brand and see its headline indices against last year, weekly volume colored by discount depth, each index against the prior year, and a calendar of every campaign. Drill into any week to read the emails that drove it.

Promotional EnsemblePromotional CalendarCampaign SearchDiscountsClearance
Promotional Ensemble · Restoration Hardware (RH)Click any week to see its top campaigns, then open the creative. Week of Aug 30, 2026: RH's Labor Day clearance email, "Save 40–80% plus an additional 20% off everything," in the 70%+ discount band.
Random Walk dashboard, Promotional Calendar heat map for Abercrombie (ANF): daily campaigns from 2024 to 2026 colored by discount band from 1–20% to 70%+.
Promotional Calendar · Abercrombie (ANF)Every campaign day by discount band, year over year. Shifts in timing, like clearance arriving a week early, show up at a glance.

03 · Claude MCP server

Ask Claude about any brand's promotions

The Random Walk MCP server puts the promotional data repository and classification engine inside Claude. With the power of AI, surface previously undetectable changes in how brands communicate with leads and customers.

View recent prompts
  • get_top_moversLeaderboard of brands whose promotions grew or dropped most versus last week or last year.
  • search_campaignsFull-text search across a brand's campaigns: subject, body and discount fields.
  • get_weekly_volume_comparisonThis year against last year, aligned by ISO week, with discount-band counts.
  • get_harmonic_weeklyPer-campaign discount records: effective and max discount, steep, clearance and storewide flags.
  • get_weekly_volumeA brand's weekly promotional series with discount aggregations.
  • list_companiesThe coverage catalog: brand, ticker, domain and sector.

04 · Research

Weekly Inflections and deep-dive reports

Every week, Inflections flags the brands whose promotions broke from their own history. Alerts and monitors go deeper on one company or one season. Open a sample below.

First page of the Inflections report, week of September 21, 2026 Weekly · InflectionsInflections, week of September 21, 2026The week's positive and negative promotional outliers across our coverage.PDF → First page of the KFC promo insights alert Alert · YUM · MCDKFC escalates to offset softness, Taco Bell pulls backSignificant discounts +383% and total volume +206% year over year at KFC. Aug 3, 2026.PDF · 6 pages → First page of the Back-to-School Promo Monitor Monitor · Specialty apparelBack-to-School: who is discounting harder?Discount depth, sale coverage and stacked offers across 17 apparel banners, 2026 versus 2025.PDF · 11 pages →
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