Mr. Cooper Group’s 144% Volume Surge Propels Stock to 501st in U.S. Trading Activity

On September 10, 2025, Mr. , . The stock ranked 501st in trading activity among U.S. equities, indicating heightened investor interest in the mortgage services provider.

Recent developments highlight regulatory scrutiny as a potential risk factor. The company faces ongoing investigations into its compliance practices related to loan servicing operations. Analysts note that regulatory outcomes could influence short-term volatility, though no immediate material impact has been observed in trading patterns.

Operational metrics remain a focus for investors. Recent filings revealed adjustments in client retention rates across key markets, with mixed performance in refinancing activity. The company has emphasized cost optimization initiatives in its latest investor communications, though execution timelines remain unspecified.

To run this back-test accurately I need to firm up a couple of details first: 1. Universe • Do you want the entire U.S. equity market (all listed common stocks) ranked by daily dollar volume, or a narrower universe such as the S&P 500 constituents? • Should ADRs, ETFs or preferred shares be excluded? 2. Weighting & rebalancing • Equal-weight the 500 names each day, or weight them by something else (e.g., proportional to volume)? • Rebalance every trading day (i.e., buy at today’s close, sell next day’s close, form a new portfolio)? 3. Frictions • Any transaction-cost assumption (e.g., bid/ask spread or commission) you’d like applied? • Slippage model (e.g., trade at close price, or apply a price impact)? 4. Benchmark • Which benchmark would you like to compare the strategy against (e.g., SPY)? Once I have this clarification I can generate the data-retrieval plan and run the back-test for the period 2022-01-03 to the present.