Alpaca Outage History

114 incidents recorded over the last 365 days, 92 of them resolved. Durations are measured from when PulsAPI first saw the problem to when it cleared, which is usually longer than the vendor's own figure.

Live Alpaca status97.62% uptime history

Every Recorded Alpaca Incident

Alpaca incidents, newest first, with date, duration and status.
DateIncidentDurationStatus
Aug 22, 2026Scheduled maintenance for Sandbox and Production on Saturday, August 22, 2026, from 7:00 AM to 10:00 AM ET.Scheduled maintenance is currently in progress. We will provide updates as necessary.3h 0mScheduled
Aug 20, 2026New account sign-up errorsBetween approximately 3:30 PM and 8:00 PM ET on August 19, 2026, some new users were intermittently unable to complete account registration due to maintenance work that caused sign-up attempts to time out. Existing…-1024 minResolved
Aug 20, 2026Order rejections at pre-market session openOn August 20, 2026, a subset of equity orders submitted during the early pre-market session were rejected between approximately 4:00 AM and 4:01 AM ET. A configuration change applied ahead of the session caused the…-216 minResolved
Aug 13, 2026Scheduled Sandbox maintenance on Thursday, August 13th, 2026,6:00 PM ET to 8:00 PM ETThe scheduled maintenance has been completed.2h 0mScheduled
Aug 12, 2026Investigating position update issue after sell orders issueThis issue is now resolved. Thank you for your patience and understanding.8h 35mResolved
Aug 8, 2026Scheduled Production maintenance on Saturday, August 8th, 2026. 7:00 AM ET to 9:00 AM ETThe maintenance completed successfully.2h 0mScheduled
Aug 6, 2026Scheduled Maintenance of Sandbox on Thursday, August 6th, 2026 6:00 PM ET to 8:00 PM ETThe maintenance was completed.2h 0mScheduled
Aug 4, 2026Order Status DisrepanciesThis issue has been resolved. If you are experiencing discrepancies, please reach out to Alpaca support.3h 10mResolved
Aug 3, 2026Delays in Trade Confirmation EmailsThis issue has been resolved. Please refer to your trade confirmations to view today's trades, once available. Thank you for your patience and understanding as we worked to implement a fix.54 minResolved
Aug 1, 2026Scheduled Maintenance of Sandbox & Production - Saturday, August 1st, 2026 7:00 AM ET to 8:30 AM ETThe scheduled maintenance has been completed.1h 30mScheduled
Jul 31, 2026Issue on Overnight Trading AvailabilityOn July 31, 2026, between approximately 3:15 AM and 4:00 AM ET, customers experienced overnight order rejections after aggregate overnight activity exceeded a capacity control at an execution venue. Alpaca temporarily…2h 30mResolved
Jul 30, 2026JMKE IPO Withdrawal Window Notification DelayOn July 29, 2026, customers with Jersey Mike's \(JMKE\) IPO orders did not receive the expected withdrawal-window notification. On July 30, between approximately 9:22 AM and 1:10 PM ET, related IPO allocation updates…4h 14mResolved
Jul 30, 2026"last_equity" Field Showing Stale Closing Prices for Some AccountsThis issue has been resolved. Thank you for your patience as our team worked to reflect the most recent close prices.3h 58mResolved
Jul 25, 2026Scheduled Maintenance of Sandbox & Production - Saturday, July 25th, 2026 7:00 AM ET to 8:00 AM ETThe scheduled maintenance has been completed.1h 0mScheduled
Jul 24, 2026Paper Trading: Portfolio Service DegradationResolved: All affected services have returned to normal operation. API response times have normalized, and the portfolio graph is loading successfully on the dashboard. We will continue monitoring to ensure continued…1h 40mResolved
Jul 21, 2026Issue in Portfolio History service for requests covering periods prior to June 1, 2026.On July 21, 2026, between approximately 4:33 AM and 3:18 PM ET, Portfolio History requests covering periods before June 1, 2026 may have returned inaccurate or unavailable data while historical records were being…4h 53mResolved
Jul 21, 2026Intermittent Portfolio History AvailabilityOn July 21, 2026, between approximately 4:46 AM and 6:37 AM ET, customers may have experienced intermittent errors for recent Portfolio History requests due to a processing compatibility issue. Our engineering…44 minResolved
Jul 21, 2026Issues with Account Creation and OnboardingOn July 21, 2026, between approximately 2:16 AM and 4:42 AM ET, there were disruptions to account creation and onboarding caused by a capacity limitation affecting a related processing service. Our engineering…2h 4mResolved
Jul 14, 2026[RESOLVED] Intermittent errors across Paper Trading API endpointsOur team is aware of intermittent errors occurring across multiple Paper Trading API endpoints between 9:36 and 10:00 AM ET. The issue has since been mitigated. Thank you for your patience as service was restored.0 minResolved
Jul 13, 2026[RESOLVED] Intermittent 5xx Errors Affecting Trading and Account RequestsThe intermittent 5xx errors affecting some order placement and account-related requests have been resolved. The issue was temporary and has been mitigated. Please retry any failed requests.-21 minResolved
Jul 12, 2026[RESOLVED] Users holding paper accounts on Algodash being rerouted to the login page after successful loginA subset of users accessing paper trading accounts experienced an issue in algodash where, after successfully logging in, they were redirected back to the login page instead of being granted access to their…0 minResolved
Jul 11, 2026Cost basis for the asset SKHYV is currently set as 0This incident has been resolved.1h 57mResolved
Jul 11, 2026Scheduled Maintenance of Sandbox & Production - Sat, Jul 11, 7:00–9:30 AM EDTThe scheduled maintenance has been completed.2h 30mScheduled
Jul 10, 2026[RESOLVED] Duplicate DIVNRA (withholding) tax entries for the QQQ dividendThis incident has been resolved.0 minResolved
Jul 7, 2026some accounts May See incorrect Cost Basis for Crypto PositionsIssue is fully resolved now. Please reach out to us if you are seeing any issue in crypto positions.1h 52mResolved
Jul 3, 2026For Some Accounts, Cash Withdrawable Balance Displaying Up to $0.02 More Than AvailableThis incident has been resolved.6h 48mResolved
Jun 30, 2026Account balances display issueOn June 30, 2026, between approximately 5.20 AM ET and 6:36 AM ET, some accounts briefly displayed missing positions or zero equity in our broker dashboard and APIs. During our scheduled daily processing, a step…10 minResolved
Jun 27, 2026Elevated Order Request TimeoutsOn June 27, 2026, from approximately 4:01 AM to 6:03 AM ET, a subset of order requests experienced elevated timeouts due to temporary database connectivity issues caused by increased connection pressure. Our…-370 minResolved
Jun 27, 2026Scheduled Maintenance: Saturday, June 27th, 2026 ( 7:00 AM to 09:00 AM EDT )The scheduled maintenance has been completed.2h 0mScheduled
Jun 26, 2026Increased Errors and Timeouts on Broker API EndpointsThis incident has been resolved.29 minResolved
Jun 24, 2026Resolved: Intermittent API Failures (10:15 -10:35 UTC)On June 24, 2026, our platform experienced a brief period of elevated API errors between approximately 6:14 AM ET and 6:18 AM ET. An unusually high volume of inbound connections to our production API exceeded the…0 minResolved
Jun 16, 2026[RESOLVED] SPCX Fractional Trading Briefly Unavailable During Extended HoursThere was a brief disruption to fractional SPCX trading during today's extended hours session. We identified an issue that required us to temporarily suspend fractional EH trading at 8:41 AM EST. We are pleased to…0 minResolved
Jun 14, 2026Funding Services Disruption - ResolvedTime: June 14, 2026 | 04:11-06:00 AM UTC Identified (04:11 UTC): Funding services - funding wallets, instant funding, and deposits/withdrawals - were unavailable due to extended maintenance by an upstream payment…-720 minResolved
Jun 13, 2026Scheduled Maintenance: Saturday, June 13th, 2026 ( 7:00 AM to 10:00 AM EDT )The scheduled maintenance has been completed.3h 0mScheduled
Jun 11, 2026[ Resolved ]Intermittent Order Rejections on One Execution VenueTime: June 11, 2026 | 11:05 AM – 11:17 AM EDT Our connection to one of our execution venues experienced a brief disconnection. Orders submitted during this period that were pending routing were rejected by the venue…0 minResolved
Jun 6, 2026Scheduled Maintenance: Saturday, June 6th, 2026 ( 7:00 AM to 10:00 AM EDT )The scheduled maintenance has been completed.3h 0mScheduled
Jun 6, 2026Scheduled Maintenance: Friday, June 5th, 2026 (8:00 PM to 8:30 PM EDT)The scheduled maintenance is now completed.30 minScheduled
Jun 1, 2026Journal Processing Delays — June 1, 2026On June 1, 2026, our platform experienced a processing delay affecting journal cash transfers \(JNLCs\). The issue originated from a surge in journal volume at market open, which caused unexpected delays. However, no…1h 42mResolved
May 30, 2026Broker API and Trading API TimeoutsOn May 29, 2026, at 10:05 PM ET, Alpaca experienced an increase in timeout errors for Broker and Trading API services for approximately nine minutes. Services were restored quickly and our team is continuing to monitor…3 minResolved
May 28, 2026Scheduled Maintenance: May 28, 2026 (6-7 PM EDT)The scheduled maintenance has been completed.1h 0mScheduled
May 28, 2026Alpaca Documentation Site Experiencing Intermittent IssuesThis incident is resolved. Thank you for your patience.2h 4mResolved
May 27, 2026Urgent Production maintenance on Wednesday, May 27. Here’s what to expectThe scheduled maintenance has been completed.15 minScheduled
May 27, 2026Alpaca Documentation site is OfflineOur documentation site online and the issue has been resolved. Thank you for your patience.56 minResolved
May 26, 2026Broker API Endpoints are receiving timeout errorsThis issue has been resolved, and endpoint connections are now fully operational. Thank you for your patience.1h 16mResolved
May 26, 2026Delays in Cash Settlement ProcessingFollowing the U.S. Memorial Day holiday weekend, some accounts that sold U.S. equities on Friday, May 22 experienced a delay in withdrawable cash being updated on Tuesday, May 26. The issue was identified at 4:25 AM…3h 24mResolved
May 23, 2026Scheduled Maintenance: May 23, 2026 (7–8 AM EDT)The scheduled maintenance has been completed.1h 0mScheduled
May 23, 2026Disruption of Trading API servicesOn May 22, 2026, at 10:06 PM ET, Alpaca experienced a partial outage of Trading API services for approximately five minutes. Services were restored quickly and our team is continuing to monitor Trading API services to…-166 minResolved
May 21, 2026Maintenance in Sandbox Today ( 21st May 2026) @ 6pm-8pm - EDTThe scheduled maintenance has been completed.2h 0mScheduled
May 21, 2026Investigating Issue with Double ExecutionsOn May 21, 2026, our platform experienced an issue where a subset of overnight fractional limit orders received duplicate executions. The issue affected orders placed between 8:00 PM ET on May 20, 2026 and approximately…6h 2mResolved
May 19, 2026End of Day reporting positions delayedThe position data processing job has completed successfully. This incident is now resolved. If you notice any remaining discrepancies, please don't hesitate to reach out. Thank you for your patience during this time1h 30mResolved
May 16, 2026Delayed EOD Balance & Position SnapshotEOD balance and position batch processing has completed successfully.53 minResolved
May 15, 2026Overnight Trading Symbol Status Update IssueOn May 15, we identified an issue affecting overnight trading. Some securities that are generally eligible for overnight trading were temporarily ineligible for overnight trading, preventing  clients from placing or…1h 16mResolved
May 12, 2026Delay in Journal ProcessingOn May 12, 2026, our platform experienced a processing delay affecting journal transfers. The issue originated from an unexpected surge in volume. However, no transactions were lost, rejected, or duplicated and there…23h 44mResolved
May 12, 2026Accounts not activated due to ledgie timeoutWe are investigating above issue. Updates will follow.2007h 39mResolved
May 9, 2026Scheduled Maintenance: May 9, 2026 (7–9 AM EDT)The scheduled maintenance has been completed.2h 0mScheduled
May 5, 2026Delayed availability of Settled Cash and EOD PositionsOn the night of May 4 our overnight batch processing cycle was delayed due to issues affecting 2 critical jobs. As a result, settled cash availability was four hours later than their normal window. We deployed two code…5h 43mResolved
Apr 27, 2026Dashboard SMS 2FALogin for Trading Dashboard is working normally again..7h 40mResolved
Apr 11, 2026Scheduled Maintenance- April 2026The scheduled maintenance has been completed.2h 30mScheduled
Apr 7, 2026JIT Reports are not available for 6-April-2026We have fixed the issue and reports are now available44 minResolved
Apr 4, 2026Planned Infrastructure Upgrade - Saturday, April 4, 2026The scheduled maintenance has been completed.2h 0mScheduled
Mar 31, 2026Service degradation across multiple API'sThe issue has been fully resolved and we are marking this incident as closed. If you observe any further issues, please don't hesitate to reach out to us.44 minResolved
Mar 28, 2026Scheduled Sandbox Maintenance due to Infrastructure Upgrade — March 28, 2026The scheduled maintenance has been completed.2h 0mScheduled
Mar 23, 2026Journals DelayedJournal processing are back to normal25 minResolved
Mar 17, 2026marketing website downWebsite is back up and there was no impact.13 minResolved
Mar 14, 2026Scheduled Maintenance- March 2026The scheduled maintenance has been completed.2h 0mScheduled
Mar 12, 2026intermittently Orders are not filled**Impact:** On March 12, 2026, our trading platform experienced intermittent connectivity to multiple trading venues. Consequently, orders were either not successfully delivered to venues or remained in a pending…3h 23mResolved
Mar 9, 2026Journal processing is stuck in "sent_to_clearing" state## **Service Status Update: Transaction Processing Delay \(March 8-9, 2026\)**   ## **Root Cause** On the evening of March 8, 2026, our platform experienced a disruption in the processing of journal entries…51 minResolved
Feb 14, 2026Scheduled MaintenanceThe scheduled maintenance has been completed.1h 0mScheduled
Feb 9, 2026Timeouts on Options Market Data SnapshotsThis issue has been resolved.35 minResolved
Feb 9, 2026Delay in instantfunding settlementsIssue is resolved12 minResolved
Feb 6, 2026Time outs on accountsThe endpoint is now stabilized and we are not seeing and more errors1h 9mResolved
Feb 4, 2026Account activation is delayedThe issue is fixed and service is back to normal57 minResolved
Jan 30, 2026Test Incident (Planned) — No Services ImpactedThis incident has been resolved.4 minResolved
Jan 23, 2026Response-times-are-increasing-due-to-database-connection issueAs everything is fine now , Marking this incident resolved here.36 minResolved
Jan 20, 2026Intermittent delay in API response for orders and JNLC# **Service update — Order processing & account sync** **January 20, 2026** ‌ **What happened \(short\):**A background database process created by a price-update job held an open transaction for an extended period…1h 6mResolved
Jan 12, 2026Elevated Error Rates Across multiple AP's - 500 Error# January 13th update **Follow-up: Resolution of Monday Market Open Incident** As a follow-up to our communication regarding Monday’s service instability, we are providing a summary of our findings and the corrective…3h 51mResolved
Jan 10, 2026Scheduled MaintenanceThe scheduled maintenance has been completed.1h 0mScheduled
Jan 6, 2026BOD process delayed## **Service Status Update: Account Data Processing Delay \(January 6, 2026\)** ### **What Happened** On the morning of January 6, 2026, our platform experienced a delay in the standard start-of-day data…3h 2mResolved
Jan 1, 2026Delay in Balance UpdateWe are marking this resolved as all the balances have been updated.11 minResolved
Dec 29, 2025Support Forum Read OnlyPayment issue resolved. The forum is working normally.13 minResolved
Dec 15, 2025Degraded Performance – Broker API & Live Trading## **Intermittent Broker & Trading API Failures \(December 15, 2025\)** We sincerely apologize for the service degradation experienced by our partners today, December 15, 2025. This incident primarily affected the…6h 4mResolved
Dec 15, 2025Degraded Performance: Instant Funding V1 API## **Degraded Instant Funding API Performance \(December 15, 2025\)** ‌ ### **What Happened** Starting at approximately 7:24 AM EST \(12:24 UTC\) on December 15, 2025, clients using the Instant Funding API…5h 14mResolved
Dec 15, 2025Journals are getting Stuck## **Transaction Processing Delays and Restoration \(December 15, 2025\)** We sincerely apologize for the service degradation experienced on December 15, 2025, which primarily affected the timely processing of…2h 49mResolved
Dec 5, 2025Resolved: Brief Cloudflare Outage Impacted Some Alpaca ServicesDue to a brief Cloudflare outage (~16-24 minutes), some Alpaca services including our public documentation site, Broker dash, and website were temporarily unavailable. Our APIs (including Trading API and Broker API)…0 minResolved
Dec 2, 2025API Service DegradationWe are committed to providing a reliable and stable platform for our B2B partners. We sincerely apologize for the disruption experienced on December 1, 2025, which resulted in intermittent API service degradation. We…23 minResolved
Nov 25, 2025Delay in updating today's account balances for subset of accounts.We understand the importance of timely and accurate balance information. This update provides details regarding a delay in the synchronization of beginning-of-day balances for some partner accounts that occurred on the…3h 0mResolved
Nov 21, 2025BOD Job Experienced a DelayThis incident has been resolved.1h 29mResolved
Nov 18, 2025Alpaca Applications DownCloudflare has resolved their incident and we have migrated our domains back to Cloudflare.7h 13mResolved
Nov 18, 2025JNLC's are getting stuck due to large batch processing.We are providing an update on a service interruption that impacted transaction processing on **November 18, 2025**. ### **What Happened** During a period of heavy transaction load, a specific internal maintenance…1h 46mResolved
Nov 14, 2025Outage of Trading/Broker APIs due to deployment issueThis incident has been resolved0 minResolved
Nov 13, 2025Journals are stuck in "Sent_to_Clearing" statusThis incident has been resolved.3h 11mResolved
Nov 13, 2025Duplicated dividends processed for asset AAPLWe are issuing an update regarding a brief service issue that occurred on **November 13, 2025**, which temporarily caused an incorrect display of cash and buying power for certain accounts. ### **What Happened** A…4 minResolved
Nov 12, 2025Withdrawable cash display discrepancyWe are reporting on a service issue that temporarily displayed incorrect **Cash Withdrawable** balances for a subset of users, starting late on **November 10, 2025**, and resolving after our Beginning of Day \(BOD\)…3h 32mResolved
Nov 11, 2025Accounts Stuck in “Approved” StatusWe are reporting on a service interruption that affected the activation of new accounts for several partners, starting on or around **November 10–11, 2025**. ### **What Happened** Our automated system responsible for…25 minResolved
Nov 4, 2025End of day - Balance and position snapshot is delayed for 3-NOV## Incident Summary: The issue originated early that morning with a delay in our end-of-day job, which impacted balance and position snapshots and led to inaccuracies in several financial calculations. Crucially, this…25h 8mResolved
Oct 29, 2025OPRA Market Data OutageThe issue has been resolved. Live data resumed normal operation around 3:15 PM EST, and historical data was backfilled and corrected shortly after. The Exegy team has confirmed resolution and will implement additional…4h 56mResolved
Oct 27, 2025Increase in database connections due to spike in v1/accounts/activitiesIdentified the issue and is fixed1h 41mResolved
Oct 23, 2025Journal v2 status event endpoint is currently downThis incident has been resolved.9h 40mResolved
Oct 22, 2025Intermittent OPRA Market Data OutagesOur market data vendor has confirmed that OPRA data is now back online and operating normally. We will continue to monitor the situation and issue a new update if any additional outages occur.1h 2mResolved
Oct 22, 2025Brokerage trading partners unable to login to dashboardThis incident has been resolved.0 minResolved
Oct 20, 2025Login Issues Due to AWS OutageThis incident has been resolved.3h 15mResolved
Oct 18, 2025Delay in end of day balance and position availability for 17-OCT-2025.This incident has been resolved.6h 10mResolved
Oct 16, 2025Ledger system IssueSystems are stabilized27 minResolved
Oct 16, 2025End of day job to calculate balance and position is running longer than expected.We’ve resolved the earlier delay with our End-of-Day (EOD) processing for October 15th. All jobs have now completed successfully, end-of-day balances and positions are now available, and funds from yesterday's sales are…3h 38mResolved
Oct 13, 2025New orders are rejected due to validation.**Summary** On October 13, 2025, one of our automated risk controls activated during an unusually high wave of fractional buy orders just before the market opened. The control is designed to pause accepting new…0 minResolved
Oct 11, 2025Datase Migration : Postpone the scheduled maintenance due to potential disruption.This incident has been resolved.12 minResolved
Oct 9, 2025Intermittent Database Connection Failure – Investigation UnderwayA change in our monitoring system resulted in an alert erroneously firing indicating the database was down. In order to resolve this quickly the database was restarted, resulting in the outage.1 minResolved
Oct 7, 2025High DB connection usage creating intermittent API failureHigh usage of database connections was identified around 6:00 PM ET. The team was able to identify an application process that was creating contention due to a lock wait, which persisted even after the request timed…13h 52mResolved
Sep 23, 2025Intermittent Broker API Latency and TimeoutsTraffic is back to normal and stabilized1h 17mResolved
Sep 15, 2025OPRA Message Processing IssueWe use aeron transport to send the preprocessed Exegy data from GCP  VMs to our Kubernetes cluster. The aeron-driver component which is responsible for the UDP message transport, showed many NAKs \(retransmissions\) and…19h 49mResolved
Sep 10, 2025Options Market Data AffectedThis incident has been resolved.24h 22mResolved
Sep 5, 2025API Request DelayedWe recently deployed an authentication related infrastructure change that got overwhelmed at market open due to high request rate on our api. This was triggering several alerts as well as customer complaints about…8 minResolved
Sep 4, 2025Partial outage on the OPRA market data streamThis incident has been resolved.59 minResolved
Sep 3, 20258/29 ACH Display of Deposits AffectedThe issue with ACH deposits from Friday, August 29, has been fully resolved. All pending transfers have been processed and are now correctly displayed in customer accounts. We have confirmed that all funds are…41 minResolved

How to Read This Alpaca Incident Log

Each row is an incident PulsAPI observed, not a summary written afterwards. The duration is wall-clock time between the first failing check and the first clean one, so it includes the window before Alpaca acknowledged anything. Vendor post-mortems typically measure from acknowledgement, which is why their numbers are usually shorter.

Incidents still open have no duration yet and are listed as ongoing rather than being given a running total. The archive covers the last 365 days; anything older has aged out of the window rather than never having happened.

The longest single Alpaca outage in this window ran 83d 15h, against a mean recovery of 21h 28m. If you depend on Alpaca in a customer-facing path, the longest figure is the one to design around. The mean is what happens on a normal bad day; the maximum is what happens on the worst one.