Supply Dump Alerts
Detect unusual marketplace inventory spikes before prices crash
How Supply Dump Detection Works
SneakerPing monitors marketplace ask counts daily, comparing current supply levels against a rolling 7-day average. When supply spikes abnormally — often indicating a retailer restock or reseller liquidation — an alert is triggered.
Severity Tiers
- Major: Supply at 3x+ the 7-day average AND price has dropped 15%+ — significant dump in progress
- Minor: Supply at 2x+ the 7-day average AND price has dropped 10%+ — notable increase worth monitoring
- Watch: Either a supply spike OR a significant price drop detected — early warning signal
Why Supply Dumps Matter
When marketplace supply suddenly increases, prices typically follow downward. Recognizing these events early gives buyers an opportunity to wait for lower prices, and sellers a signal to act before values drop further. Subscribers get full pricing data including current price, 7-day average, and percentage drop.