Apple Shares Surge 1.43% as Trading Volume Maintains Fourth-Highest on Market

On September 11, 2025, Apple Inc. , outperforming broader market trends. , , yet it remained the fourth-highest volume among listed equities. The move followed a mix of macroeconomic signals and sector-specific dynamics, though no direct company-specific announcements were cited in the analyzed data.

To assess the performance of high-volume stocks, a back-test framework was proposed: selecting the 500 U.S.-listed equities with the highest daily trading volume, holding positions for one day from January 1, 2022, to the present. Key parameters include using share count (not dollar volume) for ranking, entering positions at the close of the ranking day, and exiting at the next-day close. The test assumes equal weighting across all 500 stocks and excludes transaction costs by default. Once validated, the methodology will generate a composite portfolio return series for performance analysis.