The Direxion Daily CSI China Internet Index Bull 2X Shares ETF (CWEB) surged 6.28% to close at $37.42 on February 4th, driven by optimism surrounding Chinese technology advancements and potential stimulus measures. A significant catalyst was the breakthrough by Chinese AI startup DeepSeek, which has been hailed as a pivotal development towards China's tech self-sufficiency. This has sparked a surge in tech stocks, particularly in Hong Kong, with Semiconductor Manufacturing International Corp. experiencing an 8.5% jump. Additionally, speculation that Beijing might introduce further stimulus measures is bolstering investor confidence, despite potential tariff escalations from the US. In pre-market trading, China Concept Stocks and ETFs showed strong performance, with Kingsoft Cloud rising over 8% and CWEB increasing by more than 4%.