Fiserv Dips 0.43% as $450M Volume Ranks 249th in U.S. Equities

Fiserv (FI) closed October 9, 2025, , . equities by daily liquidity. The stock's performance followed mixed signals from market participants assessing its position in the financial technology sector amid broader market volatility.

Analysts noted the stock's subdued activity reflected cautious positioning ahead of the firm's upcoming earnings release. While no new partnership announcements or were disclosed during the reporting period, investors maintained a watchful stance on potential catalysts in the coming quarter. The company's market cap remained stable relative to peers, with no material shifts in reported during the period.

To run this back-test accurately, I need to clarify two points: 1) Universe scope - Which market/exchange should define the "top 500 stocks by daily trading volume" (e.g., all U.S.-listed equities, only NYSE + NASDAQ, a specific country market, etc.)? 2) Platform constraints - The current back-testing engine we can invoke is designed for single-ticker or single-index tests, not a dynamically changing 500-stock portfolio. Possible work-arounds: a) Approximate with an index or that tracks the most actively traded U.S. stocks (e.g., an equal-weight "high-volume 500" proxy if available). b) Limit the test to a smaller static basket of tickers you specify. c) Proceed with a custom analysis outside the built-in engine (longer turnaround).