S's $750M Volume Ranks 155th as SP Global Index Falls 1.05%

On October 2, 2025, S recorded a trading volume of $0.75 billion, ranking 155th among all stocks listed that day. The SP Global (SPGI) index declined by 1.05% during the session.

Recent market activity for S suggests mixed investor sentiment. While the stock's volume outperformed a significant portion of the market, its price action remained subdued amid broader equity weakness. Analysts noted that the decline in the SP Global index may have contributed to cautious positioning in related assets, though no direct linkage to company-specific news was identified in the reporting period.

To set up a rigorous back-test I need to confirm a few practical details: (1) Stock universe—should we use all U.S. listed common stocks (NYSE + NASDAQ + Amex), or another universe (e.g., only S&P 500 constituents)? (2) Ranking convention—volume measured on the same-day close, then trades executed at the next day’s open? (3) Trading frictions—any commission or bid-ask slippage assumptions to include (e.g., 2 bp per trade)? (4) Price series—use split-/dividend-adjusted prices (default) and daily total volume? Once these details are confirmed, the required data will be fetched to generate daily buy/sell signals for the 2022-to-present back-test.