Scheduled Maintenance

Scheduled Maintenance Report for Polymarket US System Status

Completed

The scheduled maintenance has been completed.

Posted Nov 05, 2026 - 08:00 EST

In progress

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Posted Nov 05, 2026 - 06:00 EST

Update

We will be undergoing scheduled maintenance during this time.

Posted Nov 04, 2026 - 17:41 EST

Scheduled

We will be undergoing scheduled maintenance during this time.

For market makers: For about 20 minutes, FIX clients can expect to receive a BusinessMessageReject (35=j, 380=4), not an OrderCancelReject. API clients will get gRPC FAILED_PRECONDITION, or HTTP 400 over REST. We will then cancel all open orders, as in every window.

Posted Nov 04, 2026 - 16:21 EST

This scheduled maintenance affected: [Production] Polymarket US Exchange.