EME Surges 3.26% on $290M Volume Ranks 398th in Market Activity

On October 8, 2025, EMCOR Group (EME) rose 3.26% to close its trading day, with a volume of $290 million ranking it 398th in market activity. The stock's performance followed a strategic review of its recent operational updates and market positioning.

Analysts highlighted the company's focus on infrastructure projects and energy transition services as key drivers for investor confidence. Recent contracts in the renewable energy sector were cited as catalysts for short-term momentum, though long-term valuation metrics remain under scrutiny due to sector-wide capital intensity.

Market participants noted the absence of significant earnings surprises or regulatory developments, suggesting the move was primarily volume-driven. Institutional activity showed mixed signals, with some large-cap funds increasing exposure while others trimmed positions ahead of quarterly rebalancing.

To run this back-test properly I need to be sure I’m interpreting your request (and our data coverage) correctly: 1. Market universe – Which exchange(s) should be scanned for the “top 500 stocks by daily trading volume” – e.g., all U.S. listed common stocks (NYSE + NASDAQ + AMEX)? 2. Price used for entry/exit – Should we open the position at each day’s close and exit at the next day’s close (so “hold 1 day” = overnight)? 3. Re-balancing mechanics – The strategy selects the top 500 by volume every trading day, equal-weights them, and holds for one day – is that the rule you want? 4. Transaction costs / slippage – Do you want to assume zero execution cost, or should we include an assumed bid-ask spread/commission (e.g., 2 bps in/out)? Once we pin down these items I can generate the daily signal files and run the back-test.