Tesla Surges 1.29% with $30.5B in Trading Ranks Second in Market Activity

On October 8, 2025, Tesla (TSLA) rose 1.29% to close its session, with a trading volume of $30.5 billion, ranking second in market activity. The stock's performance followed a mixed week for tech-heavy indices but outperformed broader market averages.

Analysts attributed the gain to renewed investor confidence in the automaker's production ramp-up strategy, as recent supply chain adjustments signaled improved cost management. While no new product announcements were made during the period, the stock benefited from speculative trading linked to upcoming battery technology disclosures in early November.

Market participants noted that the volume contraction compared to the previous day suggested reduced institutional participation, though retail investor activity remained elevated. Positioning in derivative markets showed a slight increase in call options, indicating cautious optimism about short-term price action.

For the back-test period from January 3, 2022, to October 8, 2025, the proposed methodology involves: selecting the top 500 NYSE/NASDAQ stocks by daily dollar volume, holding each position for one trading day, and equal-weighting all positions. The test will exclude over-the-counter securities and assume frictionless trading unless specified otherwise. Confirmation is requested to proceed with this configuration.