China is intensifying its scrutiny of foreign firms' participation in its exchange-traded fund (ETF) market, following allegations against Jane Street Group in India. Regulators are demanding detailed information on trading activities conducted by brokers, focusing on how foreign entities operate within the $859 billion ETF sector. This move comes after Jane Street faced scrutiny in India for alleged market manipulation.

China's ETF market, one of the fastest-growing globally, has attracted significant foreign interest in recent years. The heightened oversight could signal a broader crackdown on foreign trading activities, potentially impacting market liquidity and investor confidence. The ETF market in China has been a key area for foreign investment, and any restrictions could reshape how global investors access Chinese equities.

As China tightens its grip, foreign firms may need to adapt their strategies to comply with the new regulatory environment.