British Stocks Surge in Trading Volume to Rank 363rd as BAT Plummets Amid Regulatory Scrutiny

On September 23, 2025, , , ranking 363rd in the stock market. .

Analysts highlighted renewed in the tobacco sector as a key factor influencing BAT's performance. Recent policy discussions in the UK Parliament focused on potential restrictions for smokeless products, creating uncertainty for firms like BAT. Market participants noted that the sector's sensitivity to legislative shifts remains a persistent risk, with BAT's offering some counterbalance to domestic regulatory pressures.

Trading activity for British stocks showed mixed momentum, with volume gains outpacing broader market trends. However, liquidity concentrations in mid-cap sectors limited overall market participation. data indicated a slight shift toward defensive assets, suggesting cautious sentiment amid ongoing .

To run this back-test accurately I need to clarify a few implementation details: 1. Stock universe – do you want to restrict the selection to all U.S. common stocks (NYSE + NASDAQ + AMEX) or a different universe? 2. Purchase price – because the ranking is known only after a day’s trading ends, the usual practice is: • identify the top-500 stocks by dollar trading volume at each day’s close, • buy them at the next day’s open, • close the positions at the next day’s close (1-day holding period). Is that acceptable, or would you prefer a different execution convention? 3. Weighting – equal-weight (each of the 500 names gets 0.2 % of the day’s capital) or volume-weighted? 4. Transaction costs / slippage – should we include any (e.g., 2 bp each side) or ignore them? Once I have these details I can build the retrieval plan and run the back-test.