Lyft's stock price increased nearly 70% after market close on Tuesday due to a typo in their earnings report that incorrectly stated a .5% margin expansion as a 5% expansion. The typo was present in both Lyft's earnings slide deck and press release accompanying the report. Lyft quickly corrected the mistake, but the stock surge had already begun. Lyft CEO David Risher took responsibility for the error during an interview, calling it a "bad error" and "super frustrating." Lyft's actual earnings report and 35% stock increase were still considered good news, even after correcting the typo.