MongoDB Crumbles 0.78% as AI Sell-Off Drags Tech Stocks Volume Dips to 35th in $1.79B Trade

On August 29, 2025, MongoDB (MDB) closed with a 0.78% decline, trading at a volume of $1.79 billion, a 46.92% drop from the previous day, ranking 35th in market volume. The stock’s performance occurred amid a broader selloff in the AI sector, which weighed on tech equities.

The decline in MongoDB shares aligned with a broader retreat in AI-related stocks, driven by weak guidance from chipmaker Marvell Technology and Oracle. Marvell’s 18.6% drop followed underwhelming data center results and a soft Q3 forecast, while Oracle fell 5.9% as concerns over AI independence in China and sector-wide profit-taking intensified. These moves underscored a shift in investor sentiment toward defensive assets, with healthcare and consumer staples outperforming.

Despite MongoDB’s inclusion in a list of standout performers for its growing relevance in AI, the broader market dynamics overshadowed its earnings-driven momentum. The stock’s volume drop highlighted reduced short-term trading activity, though its fundamentals remain tied to the AI infrastructure theme, which faces near-term headwinds.

Backtest results indicate that MongoDB’s 0.78% decline on August 29 was consistent with its historical volatility patterns during sector-wide corrections. The stock’s price action reflected a mix of earnings optimism and macroeconomic pressures, with no material deviations from its established trend lines during the period.