Nvidia set a record on Wednesday by adding $330 billion to its market value in a single day, making it the biggest daily gain in stock market history. Nvidia's stock price rose nearly 13% on the record-setting day, buoyed by expectations of continued strong demand for its AI chips from companies like Microsoft. Nvidia's market capitalization reached $2.88 trillion, making it the third most valuable company in the world behind Apple and Microsoft. Nvidia's graphics processing units are critical for developing artificial intelligence, having established itself in the AI chip market with around 80% share.