FIS Shares Tumble 3.31% as $660M Volume Surge Pushes to 160th Liquidity Rank

On September 10, 2025, . , , . The spike in volume suggests heightened investor interest, though the price movement indicates underlying pressure amid market conditions.

The unusual volume increase may reflect short-term trading strategies or hedging activities, though no specific catalysts were cited in the available data. Analysts noted that the stock’s performance aligns with broader sector trends, where remains elevated due to macroeconomic uncertainties. However, the absence of firm news tied to Fidelity’s operations or financials leaves the price decline largely unexplained by fundamental factors.

To run this back-test rigorously, additional parameters are required: defining the stock universe (e.g., all U.S. listed equities or a narrower index), specifying whether trading volume refers to share count or dollar value, determining portfolio weighting methods (equal-weight vs. volume-weighted), establishing entry/exit conventions (e.g., close-to-close trading), and accounting for transaction costs or slippage assumptions. Clarification on these details will ensure the back-test accurately reflects the proposed strategy.