Monday.com MNDY Surges in Volume with 138% Jump to 500M but Ranks 232nd in Trading Activity as Shares Drop 3.69%

On September 17, 2025, , , . .

Market participants observed heightened in the stock following a surge in short-term speculative activity. The sharp rise in volume suggests a potential shift in , though the direction remains unclear without additional context. Analysts noted that the stock’s performance appeared decoupled from broader sector trends, indicating idiosyncratic factors may be driving the movement.

For the back-test analysis, the following parameters require clarification to ensure accuracy: (1) Market universe scope—whether to include all U.S.-listed common stocks (NYSE, NASDAQ, AMEX) and whether to exclude ADRs, ETFs, or penny stocks; (2) Trade price assumptions—whether to execute trades at the next day’s open versus today’s close; and (3) Treatment of corporate actions and survivorship bias—whether to use a survivorship-bias-free universe and adjust prices for splits or dividends. Once these parameters are confirmed, the back-test can proceed using daily volume data to construct a “top-500” basket, with event-level testing spanning from January 1, 2022, to the latest available date.