Upstart shares tumbled nearly 20% in premarket trading.Upstart reported Q3 EPS of $0.60, $0.25 better than the analyst estimate of $0.35. Revenue for the quarter came in at $228.5 million versus the consensus estimate of $214.9 million. Upstart Holdings sees Q4 2021 revenue of $255-265 million, versus the consensus of $226.6 million.