EMCOR Shares Plunge 2.04% as $280M Volume Lands It 391st in U.S. Liquidity Race

On October 9, 2025, , . stocks by liquidity. The drop followed mixed market sentiment toward construction and energy infrastructure sectors amid shifting regulatory priorities.

Analysts noted the sell-off coincided with broader underperformance in engineering services firms as investors recalibrated expectations for government contracting awards. While no company-specific earnings or guidance updates were disclosed, sector-wide volatility highlighted macroeconomic uncertainties impacting .

A back-test evaluating a daily-rebalanced strategy revealed limitations in assessing high-volume stock baskets. The proposed approach—purchasing the top 500 U.S. stocks by trading volume each day—cannot currently be processed through existing tools due to multi-asset complexity. Alternative methods include approximating the concept with indices like RSP or testing specific high-volume stocks around large-volume events.