According to a recent USA Today report, Elon Musk, CEO of Tesla, recently tweeted about the company's upcoming Battery day and hinted at "many exciting things." Battery Day, taking place on September 22, has been highly anticipated in the green market, and it is expected that the company will reveal updates to its long-lasting batteries for electric vehicles and other applications. According to a different report from Barron's, Tesla stock rose 12.6% following Musk's tweet.
For more information, read the original USA Today report or Barron's article.