TSMC Slides 0.71% on $2.57 Billion Volume 48.9% Drop from Prior Day Ranks 30th in Daily Trading Activity
TSMC closed on September 24, 2025, with a 0.71% decline, trading at a volume of $2.57 billion, a 48.9% drop from the previous day’s activity. This marked its 30th position in daily trading volume rankings. The stock’s performance reflects broader market caution amid mixed sectoral momentum and evolving investor sentiment toward tech-heavy assets.
Analysts noted that the decline aligns with recent profit-taking after a period of consolidation following extended volatility in the semiconductor sector. While no company-specific news directly impacted TSMC’s price action, macroeconomic signals and positioning adjustments by institutional investors contributed to the downward pressure. The reduced trading volume suggests limited follow-through buying, indicating potential short-term stabilization in the near term.
To run this back-test accurately, I need to pin down a few details about the trading rules and the data universe. Could you please confirm or choose the following: Universe—Do we rank “all U.S. common stocks” (NYSE + NASDAQ + AMEX), or a different universe (e.g., Russell 3000 constituents, China A-shares, etc.)? Trade timing—Do we buy at today’s close and sell at tomorrow’s close, or buy at tomorrow’s open and sell at tomorrow’s close? Position sizing—Equal-weight each of the 500 names each day (default)? Any cash or leverage constraints? Transaction costs—Use zero costs (default), or specify per-trade cost assumptions? Once I have these details, I can lay out the data-retrieval steps and run the back-test from 2022-01-01 to today.


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