Tesla (TSLA) shares have gained 25.3% over the past month (as of Sept. 22, 2025). Alphabet (GOOGL) shares have jumped 21.1%, while Apple (AAPL) , Microsoft (MSFT) , Meta (META) and NVIDIA (NVDA) have added 12%, 2%, 1.6% and 2%, respectively, during the same timeframe. Amazon (AMZN) , however, has slipped 0.1% over the past one month.What’s Behind the Rally?Tesla recently grabbed headlines after CEO Elon Musk scooped up $1 billion worth of company shares. Retail investors cheered it as a vote of confidence. ...