Chinese leader Xi Jinping and his ruling party have pushed to stimulate China's economy.Xie Huanchi/Xinhua via Getty ImagesHedge funds betting big on China generated strong returns last year.Managers, including Bridgewater, Tekne, and Pinpoint, benefited from a strong year for Chinese stocks.Many funds are also invested in ByteDance, the China-based owner of TikTok.At the start of …

