Walmart Price History — 90+ Days for Any Product
Type any UPC, EAN, or Walmart item_id and see daily price highs, lows, and averages. The cheapest moment to buy, the most expensive moment, and how today's price ranks against the last 90 days.
The 28% of products that drop below the 90-day median right now are flagged.
What the chart shows
Every Walmart product page on retailerapi shows a 90-day price chart by default. Three lines render on each chart: the daily buy-box price (solid), the lowest marketplace seller price (dashed), and the highest marketplace seller price (dotted). The shaded band between low and high shows the spread between independent sellers, which is itself a signal — narrow spread means the listing is stable, wide spread means new sellers are entering with aggressive prices.
Three numerical summaries sit above the chart. The 90-day low (the cheapest moment to buy in the last 90 days), the 90-day median (the typical price), and the percent change from 30 days ago. A green badge appears when today's price is within 5% of the 90-day low. A red badge appears when today is within 5% of the 90-day high.
Walmart marketplace sees 1.8 million price changes per day across its 50 million item catalog according to retailerapi's polling logs. That is 21 price changes per second, every second, all day. Watching it manually is impossible. retailerapi compresses the noise into 1 chart per product, refreshed every 6 hours.
See a real price history
Click any product to see its 90-day price chart, sellers list, and cross-retailer prices.
Who uses this
- Bargain hunters. Buy when the badge says "at 90-day low". Skip when red.
- Walmart sellers. Watch competitor pricing on every SKU you carry. Webhook fires when a competitor drops below your floor.
- Arbitrage flippers. Find products selling below historical median, with cross-retailer cells showing what Amazon currently charges.
- Brand managers. Spot unauthorized sellers undercutting MAP pricing within the same day.