Subject: File No. S7-24-15
From: Xiaodan Song

February 23, 2020

Leveraged EFTs gave investors more options to hedge the positions. Properly use the opportunity can achieve higher investment goals with less risk than using margin.

Please consider keeping these opportunities. And in the meantime, supervision is also truly needed to give investors warnings when some unexpected events may be coming, for example, the ETF is already too big to influence the market, so that the tracking may be distorted.

Thank you for your consideration.