The reduction of more than 100 small amounts is the management fee, because the annual management fee is 2.5% or 3%.

$ZEN Here is the legendary Grayscale holdings data for your reference https://www.coinglass.com/zh/pro/gray/Grayscale

First of all, I am not sure whether this contains Grayscale's complete holdings data.
Secondly, Grayscale is an investment institution, not a market maker, and has no obligation to pull the market or make markets. I am not sure if they will continue to buy. Looking at the picture, it shows that they have already bought the most in history.
Finally, they may be making long-term investments, or short-term investments, and they may fail in their investments (no investment is successful every time)
Those who are trapped should think about it themselves.