Retail investors in China are flooding the stock market like it’s a clearance sale, and the CSI 300 Information Technology Index just hit its highest point since 2015. The broader CSI 300 has now jumped about 16% since January, putting it near a level it hasn’t touched in over three years. The rally’s being driven by AI hype, a nationwide push to build its own chip supply, and Beijing’s attempt to stop companies from slashing prices into the ground.