DoorDashs 670M Volume Ranks 156th as Stock Navigates Delivery Sector Pressures

On September 15, 2025, , ranking 156th among U.S. equities. , reflecting muted but steady market activity amid broader sector dynamics.

Recent developments highlight DoorDash’s strategic initiatives to expand delivery networks and enhance merchant partnerships. Analysts noted that the company’s focus on optimizing logistics and reducing delivery costs could drive long-term operational efficiency. However, near-term volatility remains tied to macroeconomic uncertainties and competitive pressures in the on-demand delivery sector.

Regulatory updates also influenced sentiment, with ongoing in key markets prompting cautious investor behavior. While no immediate enforcement actions were announced, the evolving legal landscape continues to weigh on growth expectations for high-growth delivery platforms.

I can certainly help design and evaluate this “top-500-by-volume” strategy. However, the current back-testing engine available in this workspace is built to test a single instrument (ticker) at a time. To proceed, we have two practical options: 1. Simplified proxy approach: Select an investable proxy that broadly tracks “high-liquidity U.S. equities,” e.g., the Russell 1000 (ticker: IWB) or an equal-weighted S&P 500 ETF (ticker: RSP). Back-test a 1-day-hold “buy-and-hold-every-day” policy on that ETF as an approximation. This gives a quick, but coarse, sense of how a very liquid universe behaves. 2. Full cross-sectional portfolio back-test (requires custom coding outside the built-in tools): Pull full daily volume data for the entire U.S. equity universe. Each day, rank all stocks by volume, form an equal-weighted (or volume-weighted) basket of the top 500, hold for one day, rebalance the next day. This needs a multi-asset back-test engine, which we would have to script manually (Python back-tester such as Zipline / vectorbt). That falls outside the scope of the one-ticker back-tester currently wired in. Which route would you prefer? If the simplified proxy is acceptable, please let me know which ETF (e.g., IWB, RSP, or another of your choice) you’d like us to use, and we can run the 2022-present 1-day-hold back-test right away.