NIO Surges 4.34% on Strategic Shifts Despite Ranked 244th in Daily Trading Volume

On September 15, 2025, , ranking 244th among stocks traded that day. , outperforming broader market indices amid mixed sector performance.

Recent developments highlight strategic shifts in NIO’s business model. The company announced a partnership with a leading Chinese battery manufacturer to co-develop next-generation energy storage solutions, reducing dependency on third-party suppliers. This collaboration follows the launch of its subscription program, which has expanded access to its vehicle lineup without upfront battery costs.

Analysts noted that NIO’s Q2 2025 earnings report, released earlier in the week, showed improved gross margins driven by cost optimization measures. While revenue growth slowed compared to the prior quarter, the firm reiterated its commitment to expanding its global charging infrastructure, .

Conducting a rigorous back-test requires additional details to ensure computational feasibility, including the scope and methodology. Key considerations involve defining the universe of stocks, determining volume ranking criteria, and establishing portfolio construction rules. Data constraints necessitate either limiting the universe or utilizing pre-compiled volume rankings for the 700-trading-day period ending September 15, 2025.