PolygonIO incident

Missing UTP Trade Data from 12/04/2025 (4:00 PM ET)

Minor Resolved View vendor source →

PolygonIO experienced a minor incident on December 5, 2025 affecting Market Data REST Endpoints and Market Data WebSocket Channels and 1 more component, lasting 18h 48m. The incident has been resolved; the full update timeline is below.

Started
Dec 05, 2025, 06:30 PM UTC
Resolved
Dec 06, 2025, 01:19 PM UTC
Duration
18h 48m
Detected by Pingoru
Dec 05, 2025, 06:30 PM UTC

Affected components

Market Data REST EndpointsMarket Data WebSocket ChannelsMarket Data Flat Files

Update timeline

  1. identified Dec 05, 2025, 06:30 PM UTC

    We have identified missing trades for UTP securities affecting the 4:00 PM ET market close on December 4, 2025. The team is currently backfilling this data. Full restoration is scheduled for completion at midnight (12:00 AM ET) on 12/06/2025. We apologize for the inconvenience.

  2. resolved Dec 06, 2025, 01:19 PM UTC

    This incident has been resolved.