Shares of the database-as-a-service provider MongoDB (MDB) slumped as much as 14.6% on Wednesday morning, and were still down 10.8% as of 11:02 a.m. ET. The sell-off occurred despite the company reporting better-than-expected fiscal Q2 2027 results (ended July 31), with revenue up 30% year-over-year to $772 million and adjusted EPS rising 90% to $1.90, both surpassing analyst consensus. MongoDB also raised its full-year guidance, forecasting revenue of $3 billion and adjusted EPS of $6.49. However, analysts believe investors were looking for higher growth to justify the stock's premium valuation of 63 times forward earnings.