MongoDB (MDB) Surges 37.96% on $5.95 Billion Volume Nabs 9th in Market Activity

MongoDB (MDB) surged 37.96% on August 27, 2025, with a trading volume of $5.95 billion—a 220.69% increase from the prior day—ranking ninth in market activity. The rally followed the release of its Q2 2026 earnings report, which highlighted strong performance across key metrics.

The company reported $591 million in revenue, a 24% year-over-year increase, driven by a 29% growth in MongoDB Atlas, its cloud database service, which accounted for 74% of total revenue. Non-GAAP operating income reached $87 million with a 15% margin, while the firm added over 5,000 customers year-to-date, the highest first-half growth in its history. CEO Dev Ittycheria emphasized that many new clients are “AI-native companies” leveraging MongoDB’s platform for AI applications, signaling long-term potential.

Guidance for Q3 2026 exceeded expectations, with adjusted EPS projected at $0.76–$0.79 and revenue at $587 million–$592 million. Full-year 2026 revenue is forecast to reach $2.34–$2.36 billion, surpassing prior estimates. The firm also repurchased $200 million worth of shares, reflecting confidence in its value proposition. However, challenges remain in non-Atlas segments, which face a projected low-20% year-over-year decline in the next quarter.

To set up this back-test robustly I need a few clarifications about the exact trading logic and data universe you want to use:

1. Universe • Should the ranking be run on all U.S. listed common stocks (NYSE + NASDAQ + AMEX) each day, or a narrower universe (e.g., S&P 500 constituents, Russell 1000, etc.)? • ADRs / ETFs excluded?

2. Entry & Exit prices • Do we “form the list” after the market closes (using that day’s volume), buy at the next day’s open, and liquidate at that day’s close (≈ 1-day holding period)? • Or do you prefer buy at today’s close and sell at tomorrow’s close?

3. Transaction costs / slippage • Assume zero (pure return) or include a per-trade cost?

4. Risk controls • Any stop-loss, max drawdown, or position cap? (Default is none.)

If the defaults below work for you, let me know and I can proceed immediately:

• Universe: all U.S. listed common stocks (no ETFs/ADRs) • List formation: rank by total share volume at the close, buy next day’s open, sell same day’s close • Equal-weight the 500 names each day • No transaction costs or risk controls