Strong performance boosts market confidence Alphabet (GOOG.US, GOOGL.US) rises nearly 10%, marking the second largest single-day market value increase in history.

According to the Zhitong financial app, Alphabet's (GOOG.US, GOOGL.US) stock price rose nearly 10% on Thursday, closing at $384.8 per share, with a single-day market value increase of approximately $421 billion. This marks the second largest single-day market value increase in history, second only to Nvidia (NVDA.US) which recorded an increase of around $440 billion due to favorable policies a year ago.