Dropbox (DBX) closed at $21.87 in the latest trading session, marking a -0.68% move from the prior day. The stock's change was less than the S&P 500's daily gain of 1.02%. Meanwhile, the Dow gained 1.09%, and the Nasdaq, a tech-heavy index, added 1.18%.Shares of the online file-sharing company have appreciated by 2.32% over the course of the past month, underperforming the Computer and Technology sector's gain of 8.46% and the S&P 500's gain of 4.44%.Market participants will be closely following the financi ...