Rivian Automotive Inc (NASDAQ:RIVN) gained 19.8% this week, closing at $17.73 on Friday, February 13, 2026. While Tesla Inc (NASDAQ:TSLA) managed just 1.54% over the same period, Rivian’s surge came despite year-to-date losses of 10.05%. Three storylines drove this momentum: Rivian’s Q4 earnings that revealed hidden strength, the imminent R2 launch, and software revenue growth ... The Week in EV Stocks: Rivian Gains 19.8% While Tesla Lags Behind | RIVN, TSLA