Alphabet closed up 10%, with its market value surging by $421 billion in a single day, setting the second highest record in history.

Golden Ten Data reported on May 1 that on Thursday, Alphabet (GOOG.O) closed up 10%, with its share price reaching $384.80. Its market value surged by $421 billion in a single day, setting the second highest single-day market value increase in history. The highest record holder is Nvidia, whose market value soared by about $440 billion in a single day about a year ago after Trump announced a suspension of additional tariffs. As of Thursday's close, Alphabet's stock price has risen by 23% this year, adding over $860 billion to its market cap and bringing its total market value to $4.65 trillion. This brings Alphabet ever closer to surpassing Nvidia as the world's largest company, the latter currently holding a market value of $4.85 trillion.