Altria Shares Drop 2.64% with 590-Million-Dollar Volume Ranking 183rd in US Equities Amid Regulatory Pressures

. 15, , . equities. The decline marked a continuation of recent volatility as investors reassessed the company’s strategic direction amid evolving regulatory pressures and market dynamics.

Analysts noted that the selloff coincided with ongoing scrutiny of the tobacco giant’s investment in e-cigarette brand Juul Labs, which remains under regulatory review. While no new material developments were reported in the sector, market participants remained cautious about potential legal risks and shifting consumer preferences toward reduced-risk products.

To run this back-test rigorously I need to pin down a few practical details that the raw description leaves open. Could you please confirm (or adjust) the following? . Universe definition • Should we screen the entire U.S. common-stock universe (NYSE + NASDAQ + AMEX), or a specific index constituent list (e.g., , , etc.)? . Daily volume ranking rule • Do we use the volume reported for the same trading day (i.e., select at today’s close, enter at tomorrow’s open), or rank on yesterday’s volume and enter at today’s open? . Trade price assumptions • Entry: open or close? • Exit after one day: next day’s open or next day’s close? . Transaction costs / slippage • Apply a commission or per-share fee, or assume zero? . Data vendor conventions • The top-500 list will change every session; to handle this I’ll construct an equal-weight portfolio that is rebalanced every day. If that’s acceptable, great—otherwise let me know the weighting method you prefer. Once these points are confirmed I can generate the data-retrieval plan and run the back-test automatically.