MongoDB shares dropped after the company announced that CEO Desai is stepping down and founder Dev Ittycheria is returning to the chief executive role. The abrupt reversal raises questions about the company's leadership stability at a time when the database software maker is trying to defend its market position.

The news lands alongside separate analysis from Seeking Alpha arguing that MongoDB's recent stock selloff has been overdone, even as the analysis concedes the shares still aren't cheap on valuation. The leadership shake-up adds a fresh source of uncertainty for investors weighing that valuation debate.

What's unresolved is why Desai left and whether Ittycheria's return signals a change in strategic direction or simply a stopgap measure while the company searches for a permanent successor.