Public catalog monitor · 2026-07-09

What changed this week?

Price movements, assortment churn, promotions, volatility, and robust anomaly flags from Stop & Shop’s anonymous public online catalog.

Scope: These are public online catalog observations. Baldwin store #2577 is the local market reference, but values are not asserted as Baldwin shelf prices.
Baseline established
StatusBaseline
Products42,255
Sitemap coverage71.0%
Valid prices100.0%

Collection health

3,146 category pages discovered · 3,151 requests · 52.8 minutes · 1 recorded non-fatal source issue(s).

Catalog size over time

Successful snapshots only. Missing observations are not interpolated.

A trend line appears after the second successful weekly snapshot.

Largest increases

Highest percentage changes among matched products.

No qualifying price movements in the latest comparison.

Largest decreases

Lowest percentage changes among matched products.

No qualifying price movements in the latest comparison.

Robust anomaly review

Only changes of at least 20% with an absolute MAD-based robust z-score of at least 3.5.

No qualifying price movements in the latest comparison.

Largest categories

Category membership is retained when products appear on multiple pages.

Packaged Donuts Breakfast Pastries200
Packaged Snack Cakes150
Childrens Cough Cold Flu Medicine100
Snack Cakes Sweet Treats100
Frozen Breakfast100
Breakfast Meals Sandwiches100
Frozen Waffles100
Hummus100
Multi Serve Hummus100
Fresh Flowers Bouquets100

Largest brands

Brand values come directly from public structured product data.

Ahold3,598
Nature's Promise918
CareOne672
Smart Living482
McCormick435
Boar's Head397
Taste Of Inspirations278
Goya270
Gerber238
Nature Made232

Weekly-ad promotions

Best-effort, separately sourced advertised offers.

Offers0
Median discount0.0%

Volatility

Four- and eight-week log-price volatility begins only after enough successful history exists.

4-week series0
8-week series0