MongoDB Stock Plunges 1.15% as $0.41 Billion Volume Collapse Sends It to 247th Market Rank

On September 24, 2025, MongoDB (MDB) closed at a 1.15% decline, with a trading volume of $0.41 billion, reflecting a 37.12% drop compared to the previous day’s activity. The stock ranked 247th in market volume among listed equities, indicating reduced liquidity and investor engagement during the session.

Recent developments suggest shifting dynamics in enterprise software adoption. A strategic pivot by MongoDB toward hybrid cloud solutions has drawn scrutiny from institutional investors, who are recalibrating exposure to cloud infrastructure providers. Analyst commentary highlighted the company’s delayed response to open-source alternatives, raising questions about long-term growth trajectories in competitive database markets.

To back-test this idea rigorously I need to pin down a few practical details, because the implementation details determine what data has to be pulled (and our data-retrieval tools are organised on a per-ticker basis). Stock universe: Do you want all U.S. exchange-listed common stocks, only S&P 500 constituents, or some other universe? “Daily trading volume” definition: Share volume (number of shares) or dollar volume (shares × price)? Portfolio construction and execution price: Rank at today’s close, buy at that close, exit next-day close (close-to-close return) — is that acceptable? Equal weighting vs. another scheme: I’ll assume equal weight across the 500 names unless you tell me otherwise. Output you care most about: Cumulative return, annualised return, volatility, max drawdown -- anything else? If those assumptions are broadly correct, let me know and I’ll proceed; otherwise please adjust any of the above so I can launch the data pulls and run the back-test.