China's securities regulator is implementing stricter controls on the listings of small domestic companies on U.S. stock exchanges due to concerns over price manipulation. The move aims to protect investors from significant losses, following reports that many of these firms have been involved in price-rigging activities. The Financial Times has reported that the China Securities Regulatory Commission (CSRC) is particularly worried about initial public offerings (IPOs) from companies with small capitalizations and weak fundamentals. This action reflects a broader effort by Chinese authorities to ensure market integrity and investor protection.