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On October 2, 2025,
(WMT) closed at 0.26% lower, with a trading volume of $1.58 billion, ranking 57th in market activity. The stock's performance reflected investor caution ahead of key earnings reports and supply chain adjustments.Recent reports highlighted Walmart's strategic shift in its U.S. grocery supply chain, aiming to reduce delivery costs by consolidating regional distribution centers. Analysts noted the move could stabilize margins amid rising logistics expenses, though execution risks remain a concern for short-term volatility.
Investor sentiment was further shaped by Walmart's Q3 merchandise sales growth, which fell below expectations despite strong holiday inventory builds. The company attributed the shortfall to inventory management challenges in high-demand categories, prompting speculation about potential markdowns to clear excess stock.
Regarding the back-test parameters: The strategy's implementation depends on defining the market universe (e.g., S&P 1500 vs. all listed stocks), volume look-back periods (same-day vs. previous-day data), weighting methods (equal-weight vs. volume-weighted), and survivorship bias handling. Two execution paths are available: using SPY as a proxy for a broad volume factor analysis, or outlining a multi-stock simulation workflow for custom environments. Clarification on these parameters is required to proceed with the test design.

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