Diamondback Energy's FANG Gains 1.69% on $250M Volume Ranks 427th in Daily Trading

Diamondback Energy (FANG) rose 1.69% on September 26, with a trading volume of $250 million, ranking it 427th among stocks on the day. The energy firm’s performance was influenced by sector-specific developments and operational updates tied to its production and cost management strategies. Analysts noted that the stock’s movement aligned with broader market trends in the oil and gas sector, though its volume remained below average for the industry.

Recent earnings reports highlighted cost optimization efforts and production efficiency gains, which bolstered investor confidence. The company’s focus on reducing operational expenses while maintaining output levels positioned it favorably against peers. Additionally, regulatory updates in the energy sector created a supportive backdrop, though risks from fluctuating commodity prices remained a factor for long-term positioning.

To run this back-test rigorously I first need to pin down a few practical details about the investment universe and the trade-execution assumptions. Could you let me know your preferences on the following? 1. Stock universe • All U.S. common stocks (≈4,000 names) • Only the current S&P 500 constituents • Something else? 2. Daily execution convention • Buy at today’s close, sell at tomorrow’s close (requires no intraday data) • Buy at tomorrow’s open, sell at tomorrow’s close • Another rule? 3. Position sizing • Equal-weight across the 500 names each day • Volume-weighted or another scheme? 4. Rebalancing / holding period • Strictly one trading day (as you stated), then the portfolio is fully refreshed for the next day — please confirm. Once I have this information I can generate the data-retrieval plan and proceed with the automated back-test.