Fixed basket
Fixed, versioned 100-product Amazon sample of family household staples
Townstoria data view · powered by WaitToSave
A fixed 100-product Amazon sample weighted to BLS-backed spending for U.S. families with minor children, measured under the same rules each day.
History
For everyday comparison, Townstoria leads with the matched Aug 2025 comparison: 96/100 products · 95.6% of index weight. Products that were unavailable for the entire historical month are omitted from both sides instead of being assigned invented prices. The technical v2 index remains normalized to 100 at Jul 2026 so the published 100-product series never gets retroactively rebased.
Price movement
These are the largest standardized-unit price changes among the matched products since Aug 2025. The comparison uses real observed August prices and current prices; unavailable historical products are excluded rather than imputed.
The basket
The products are fixed price samples across BLS-backed family spending pools. Product count controls sampling depth, while the frozen expenditure allocation controls economic weight. Package-size changes remain visible through standardized unit prices. Tap any product to open the exact Amazon source listing.
Methodology
Fixed, versioned 100-product Amazon sample of family household staples
Fixed-quantity Laspeyres weights calibrated from BLS-backed expenditure pools; product count does not set economic weight
Once daily around 5:00 AM America/Detroit
A value is published only when the fixed basket resolves under the frozen stockout, source, unit, and package rules
The Family Amazon Inflation Index is a proprietary Amazon-specific household-staples measure. It does not represent all family spending, local store prices, housing, services, taxes, or the official inflation statistics published by the U.S. Bureau of Labor Statistics.
The Aug 2025 comparison is a matched historical slice covering 96 of the fixed 100 products and 95.6% of index weight. The 4 products without a real normal price during that month are excluded from both the historical and current comparison sides; no historical price is invented or imputed. The full live index remains 100 products, with technical base Jul 2026 = 100.
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