Notice history

Apr 2026

May 2026

Jun 2026

Apr 2026

May 2026

Jun 2026

Apr 2026

May 2026

Jun 2026

Apr 2026

May 2026

Jun 2026

Apr 2026

May 2026

Jun 2026

Apr 2026

May 2026

Jun 2026

Resolved
June 24, 2026 at 8:54 PM
Resolved
June 24, 2026 at 8:54 PM
This incident has been resolved.
Investigating
June 24, 2026 at 8:45 PM
Investigating
June 24, 2026 at 8:45 PM
We are currently investigating this incident.

Scheduled CLOB maintenance

Completed
June 24, 2026 at 4:51 AM
Completed
June 24, 2026 at 4:51 AM
Maintenance has completed successfully.
In progress
June 24, 2026 at 4:00 AM
In progress
June 24, 2026 at 4:00 AM
Maintenance is now in progress
Planned
June 23, 2026 at 1:08 AM
Planned
June 23, 2026 at 1:08 AM
CLOB maintenance shipping consistency fixes for order queueing tiebreak and cancellation edge cases.
Expected impact:
- Trading intermittent for up to ~1 hour.
- Brief post-only window after restart (2 min) before normal matching resumes.
Post-only: only orders explicitly set with postOnly: true are accepted. Regular limit orders without the flag, market orders, and any taking liquidity will be rejected. Cancels for existing orders will still go through.
See POST /order API reference for the post-only flag

Scheduled CLOB Maintenance

Completed
June 19, 2026 at 5:14 AM
Completed
June 19, 2026 at 5:14 AM
Maintenance has completed successfully.
Update
June 19, 2026 at 5:06 AM
Update
June 19, 2026 at 5:06 AM
The last deployment is in the final stages, will update when completed.
In progress
June 19, 2026 at 4:00 AM
In progress
June 19, 2026 at 4:00 AM
Maintenance is now in progress
Planned
June 18, 2026 at 6:16 PM
Planned
June 18, 2026 at 6:16 PM
What to expect:
- Trading intermittent for up to ~1 hour during the window. Orders won't match.
- Post-only window after restart (2 min) before normal matching resumes.
Post-only: only orders explicitly set with postOnly: true and cancellation of open order are accepted. Regular limit orders without the flag, market orders, and any taking liquidity will be rejected.
See POST /order API reference for the post-only flag.

Scheduled CLOB maintenance

Completed
June 18, 2026 at 4:18 AM
Completed
June 18, 2026 at 4:18 AM
Maintenance is being rescheduled, targeted for tomorrow around the same time. Will post an updated maintenance alert shortly.
Planned
June 17, 2026 at 8:26 PM
Planned
June 17, 2026 at 8:26 PM
What to expect:
- Trading intermittent for up to ~1 hour during the window. Orders won't match.
- Post-only window after restart (2 min) before normal matching resumes.
Post-only: only orders explicitly set with postOnly: true and cancellation of open order are accepted. Regular limit orders without the flag, market orders, and any taking liquidity will be rejected.
See POST /order API reference for the post-only flag.

Resolved
June 11, 2026 at 2:51 PM
Resolved
June 11, 2026 at 2:51 PM
This incident has been resolved.
Identified
June 11, 2026 at 2:46 PM
Identified
June 11, 2026 at 2:46 PM
We're investigating an issue causing the Markets page to be unavailable. We'll share updates as soon as we know more.

Resolved
May 29, 2026 at 1:39 PM
Resolved
May 29, 2026 at 1:39 PM
Trading is restored. Thanks for your patience while we worked through the fix.
Monitoring
May 29, 2026 at 1:10 PM
Monitoring
May 29, 2026 at 1:10 PM
There will be a CLOB restart at 13:10 UTC to roll-out the fix.
Identified
May 29, 2026 at 12:47 PM
Identified
May 29, 2026 at 12:47 PM
We are working on a fix for an issue affecting trading

Completed
May 29, 2026 at 12:38 PM
Completed
May 29, 2026 at 12:38 PM
CLOB components have restarted successfully and all services are back to normal. Thanks for your patience and sorry for the extended maintenance.
Update
May 29, 2026 at 12:25 PM
Update
May 29, 2026 at 12:25 PM
Maintenance extended and still in progress.
In progress
May 29, 2026 at 12:10 PM
In progress
May 29, 2026 at 12:10 PM
Maintenance is now in progress, estimated 15min of maintenance
Planned
May 29, 2026 at 12:10 PM
Planned
May 29, 2026 at 12:10 PM
Brief CLOB restart to roll out additional components.

Expected impact:
- Intermittent trading for ~5-10 minutes. The CLOB will restart at ~12:10 UTC.
- Brief post-only window after restart (2 min) before normal matching resumes.
- Possible follow-up restart within 1 hr of the initial window if needed.
We'll update the status page as the restart progresses.

Planned
May 27, 2026 at 12:40 PM
Planned
May 27, 2026 at 12:40 PM
Brief CLOB restart to roll out additional components as part of our ongoing latency-focused upgrades.
Expected impact:
- Intermittent trading for ~5-10 minutes. The CLOB will restart at 12:10 UTC.
- Brief post-only window after restart (~2 min) before normal matching resumes.
- Possible follow-up restart within ~1 hr of the initial window if needed.
We'll update this page as the restart progresses.
Completed
May 27, 2026 at 12:37 PM
Completed
May 27, 2026 at 12:37 PM
This maintenance has been cancelled and will be rescheduled. No action needed.

Scheduled CLOB maintenance

Completed
May 22, 2026 at 12:10 PM
Completed
May 22, 2026 at 12:10 PM
Maintenance complete, trading is back to normal.
Thanks for your patience.
In progress
May 22, 2026 at 12:10 PM
In progress
May 22, 2026 at 12:10 PM
Maintenance is now in progress
Planned
May 22, 2026 at 12:10 PM
Planned
May 22, 2026 at 12:10 PM
- Trading paused for ~5-10 minutes. The CLOB will restart at ~12:10 UTC.
- 2 min cancel-only + post-only window after restart. Cancels and orders with postOnly: true will be accepted (See API reference here); market orders and taking liquidity will be rejected. Normal matching resumes shortly after.

Completed
May 20, 2026 at 3:10 PM
Completed
May 20, 2026 at 3:10 PM
Maintenance has completed successfully.
Update
May 20, 2026 at 3:03 PM
Update
May 20, 2026 at 3:03 PM
Maintenance still in progress, the Clob will restart shortly, and trading will be paused for ~5min.
In progress
May 20, 2026 at 2:50 PM
In progress
May 20, 2026 at 2:50 PM
Maintenance is now in progress
Update
May 20, 2026 at 2:50 PM
Update
May 20, 2026 at 2:50 PM
Brief CLOB restart to roll out an update. Trading will be paused for ~10 minutes.
Planned
May 20, 2026 at 2:50 PM
Planned
May 20, 2026 at 2:50 PM
Brief CLOB restart to roll out an update. Trading will be paused for ~10 minutes.
2 min of post + cancel only mode once back up

Completed
April 28, 2026 at 12:29 PM
Completed
April 28, 2026 at 12:29 PM
Maintenance has completed successfully.
Update
April 28, 2026 at 12:06 PM
Update
April 28, 2026 at 12:06 PM
The CLOB v2 upgrade is still in progress. Funds and positions are safe. The team is actively working through the final steps.
In progress
April 28, 2026 at 11:04 AM
In progress
April 28, 2026 at 11:04 AM
Maintenance is now in progress, for approximately 1 hour.
Planned
April 28, 2026 at 11:00 AM
Planned
April 28, 2026 at 11:00 AM
We're upgrading the CLOB v2 exchange to improve performance and reliability. The platform will be under maintenance during the window. Open orders will be cleared, and you should re-place any limit orders once trading resumes.

Apr 2026 to Jun 2026

Polymarket - Notice history