Why did NVDA move on Jun 23, 2026?

Nvidia's stock experienced volatile price action following reports that its banned AI chips, including the DGX B300 servers and RTX 6000 Pro chips, have doubled in price on China's underground black market [2, 3]. This high-signal news, originally reported by the Financial Times, highlighted surging demand and significant price premiums for Nvidia's restricted hardware in China [3, 4, 5]. While the company also announced an AI production collaboration with AWS around the same time, the black market pricing surge served as the primary talking point for the sharp trading activity [1, 3].