Cloudflare NET Shares Climb 1.06% as $880M Volume Surges 32.27% Ranking 201st in Market Activity Amid Cybersecurity Momentum

On September 19, 2025, , , , ranking 201st in market activity. The stock's performance was driven by renewed investor focus on cybersecurity infrastructure amid heightened geopolitical tensions and regulatory scrutiny of tech sector consolidation.

Analysts noted that Cloudflare's volume spike aligned with broader market rotation into , though its modest price gain suggested limited follow-through buying. The company's recent product roadmap updates, including expanded capabilities, were cited as potential catalysts for long-term investor positioning despite short-term volatility.

To run this back-test accurately I’ll need to pin down a few practical details first: 1. Trading universe • Do you want to consider every U.S.–listed common stock (NYSE + NASDAQ + Amex), or restrict it to a published universe such as the S&P 1500 / Russell 3000? • ADRs, ETFs and preferred shares are normally excluded—please confirm. 2. Entry & exit pricing • Should the position be opened at the day’s close when the is determined, then exited at the next day’s close (i.e. ), or do you prefer open-to-open / pricing? 3. Position sizing • Equal-weight across the 500 names each day (default), or size by something else (e.g. dollar-volume proportional)? 4. & slippage • If you’d like them included, please provide assumptions (bps per trade, or bid/ask spread etc.). 5. Any risk-control overlay (stop-loss, maximum holding days beyond the 1-day target, drawdown cap)? Once I have those specifics I can generate the data-retrieval plan, pull the volume and price series, build the daily 1-day-hold portfolio, and run the back-test from 2022-01-03 (first trading day) through today.