Tesla Inc. ($TSLA) experienced a significant surge in its stock price, rising by 7% following the announcement of its Robotaxi service, which is set to launch on October 10, just before the company's earnings report. The stock's implied volatility (IV30) also increased by 8%. Trading volume was notably high, with 40 million shares traded in the first hour, compared to a daily average of 96 million shares. The rise in stock price and trading volume reflects strong demand in China and improved gross margins amid declining material costs, positioning Tesla favorably for FY25. Notably, this announcement was made on Twitter without filing an 8k.