Apple Shares Climb 1.12% as Trading Volume Ranks Fifth Despite 22.46% Drop

On September 15, 2025, Apple (AAPL) rose 1.12% to close at $198.75, with a trading volume of $10.09 billion—a 22.46% decline from the previous day’s activity. The stock ranked fifth in overall trading volume across U.S. equities, reflecting sustained institutional interest amid mixed retail participation.

Market analysts noted the price movement aligned with broader sector rotations rather than firm-specific catalysts. Recent product cycle expectations and supply chain updates were cited as neutral factors, with no material earnings revisions reported in the preceding week. The Federal Reserve’s upcoming policy statements remain a key macroeconomic variable for near-term equity positioning.

To implement a daily-rebalanced strategy across the "top 500 stocks by trading volume," several parameters require finalization prior to back-test execution: 1) Define the stock universe (e.g., S&P 1500 constituents or custom ticker list); 2) Specify trade timing (close-to-close or open-to-close execution); 3) Determine weighting methodology (equal-weight or dollar-neutral rebalancing); 4) Address platform constraints for aggregating performance across 500 tickers. These details will shape the accuracy of the back-test results.