"On Monday, we experienced an issue with a part of our infrastructure that resulted in an outage, preventing customers from using our app, website, and help center," a Robinhood spokesperson said in a statement. "As of Monday night, Robinhood is back up and running."
The company also tweeted the news Tuesday. It added in a separate tweet that "When it comes to your money, issues like this are not acceptable." Robinhood also said that the outage wasn't caused by a failure to code for Leap Year.
While outages are never good, this one came at a particularly bad time for people who use the trading app. The Dow soared 1,294 points, or 5.1%, to 26,704 on Monday, according to CBS News. The Nasdaq jumped 4.5%, and the S&P 500-stock index gained 4.6%.
Some Robinhood users took to social media to slam the startup, with others threatening a class action lawsuit.
The outage appears to have started around 9:38 a.m. ET on Monday, according to monitoring site Downdetector.
Originally published March 2 at 10:22 a.m. PT.
Update 1:15 p.m.: Noted that app was still down.
Update March 3: Notes that Robinhood outage is over. Adds more detail.