PolygonIO incident
Custom Bars API returning 504 errors on minute and hourly requests for today's date (2026-05-21) for select stock tickers
Major Vendor's status page →
Resolved after 3 hours 5 minutes, affecting Market Data REST Endpoints, on May 21, 2026.
A fix has been implemented and we are monitoring the results.
Affected components
Market Data REST Endpoints
Update timeline
- investigating May 21, 2026, 03:53 PM UTC
We are currently investigating this issue.
- investigating May 21, 2026, 03:54 PM UTC
We are continuing to investigate this issue.
- investigating May 21, 2026, 03:55 PM UTC
We are continuing to investigate this issue.
- monitoring May 21, 2026, 04:03 PM UTC
A fix has been implemented and we are monitoring the results.
- resolved May 21, 2026, 06:58 PM UTC
This incident has been resolved.
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