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Nvidia shares surged Wednesday after CEO Jensen Huang said the chipmaker is seeing "incredible" demand. “Everything is sold out,” Huang said, as customers clamor for Nvidia’s products to support artificial intelligence.

The more than $200 billion rally came after Huang said the company’s customers are “emotional” and “tense” due to their desire for more of Nvidia’s high-tech products.

Nearly every day for the past few months, Huang has sold Nvidia stock. For example, on Sept. 12 and 13, he sold about 200,000 shares, worth more than $20 million.