Subject: File No. S7-24-15
From: Feng Shang

February 20, 2020

I can use small amount of money to protect my whole portfolio safe when market is going down, I use this often and get good result. I've invested into stock market more than 15 years I understand leveraged and inverse funds and their performance property. I want to preserve the long-standing free public markets where investors and their advisors have the freedom to buy public securities without additional government-imposed limitations on investor choice.