BLDR Rises 4.5% on 37% Volume Surge, Ranking 370th as Construction Sector Adapts to Supply Chain and Pricing Shifts

On September 11, 2025, , . The stock’s momentum appears tied to recent developments in the construction materials sector, where supply chain adjustments and regional demand shifts have created volatility. Analysts noted that BLDR’s performance reflects investor optimism about near-term cost stabilization and improved project visibility in key markets.

Market participants observed that BLDR’s volume spike coincided with industry-specific news about regulatory updates in raw material procurement and a shift in regional pricing strategies. While broader market indices showed mixed trends, . .

To run this back-test I need a bit more detail so that the data I pull and the calculations I perform match exactly what you have in mind: 1. Universe • Which market(s) should I scan each day for the “top-500 by dollar trading volume”? • For example: all U.S. listed stocks, only NYSE + NASDAQ, the S&P 500 membership, etc. 2. Weighting & sizing • Should the strategy allocate equal weight to each of the 500 names picked each day, or weight them proportionally by (say) volume or market-cap? • Any cash drag or leverage assumptions? 3. Practical frictions • Do you want me to ignore trading costs/slippage, or apply a standard transaction-cost assumption? Once I have those points I can pull the right data set (daily volume and prices), form the daily 500-stock basket, and run the 1-day-hold back-test from 2022-01-01 to today.