NIO Stock Slides 2.41% as Trading Volume Dives 24.13% to $520M Ranking 216th in Volume

On October 3, 2025, NIO shares closed at a 2.41% decline with a trading volume of $520 million, representing a 24.13% drop from the previous day’s activity. The stock ranked 216th in terms of trading volume among listed equities.

Recent developments highlight mixed signals for the EV manufacturer. Regulatory scrutiny over battery safety protocols has intensified, prompting investor caution. Concurrently, production delays at its Shanghai facility have raised concerns about quarterly output targets. Analysts note that these factors, coupled with broader market volatility in the automotive sector, have contributed to the stock’s downward momentum.

Strategic initiatives remain under focus. NIO’s planned expansion into Southeast Asia is progressing, though implementation timelines have been pushed back due to supply chain bottlenecks. The company also announced a partnership with a European logistics firm to optimize its battery-swapping network, a move analysts view as critical for long-term cost efficiency.

To run this back-test accurately, several parameters require clarification: 1) Stock universe scope (U.S. markets only or global inclusion), 2) Daily trading volume definition (regular-session volume or intraday data), 3) Trade timing conventions (execution at close vs. open), 4) Transaction cost assumptions, 5) Position weighting (equal-weight or volume/market-cap weighted), and 6) Benchmark inclusion (e.g., SPY). These details will determine the methodology for selecting and exiting positions from January 3, 2022, through October 3, 2025.