China's stock markets experienced a mid-morning rebound on Thursday, driven by increased activity in several exchange-traded funds (ETFs) favored by the so-called national team. The trading volume of several CSI 300 ETFs surged significantly in the afternoon, with the total transaction volume of four major ETFs exceeding 14 billion yuan. This activity is seen as a sign of state support for large-cap Chinese stocks, coinciding with the Third Plenum. The CSI 300 Index rose by 0.3%. China's state buyers have a history of intervening in the stock market during major political events to create favorable sentiment among investors. The prevention of systemic risks to the financial markets has been identified as a top priority.