Alpaca experienced a notice incident on May 15, 2026 affecting Orders API and broker.assets.get and 1 more component, lasting 1h 16m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating May 15, 2026, 05:14 AM UTC
We have identified an issue where certain securities available for overnight trading are incorrectly marked as restricted. Impact Clients may be unable to place trades for specific newly listed overnight-tradable securities. Regular trading hours and other asset classes remain unaffected.
- identified May 15, 2026, 05:26 AM UTC
We identified a likely root cause. The team is restoring the correct configuration. Investigation is ongoing, and we will share another update once recovery is confirmed.
- monitoring May 15, 2026, 06:02 AM UTC
Mitigation measures have been implemented, and services are showing signs of recovery. We are currently validating the overnight trading symbol set and transitioning into a monitoring phase while final verification checks are completed.
- resolved May 15, 2026, 06:30 AM UTC
After monitoring we are no longer seeing issues. Overnight trading symbol eligibility appears to be operating normally.