Asset managers started promoting their products some weeks ago. If I should guess I would say that the buying rate will increase in the next months!

Always have in mind that these assets managers earn more when the etf volume grows. 
.25% of 1 Billion or of 10 Billion is a huge difference and no matter how big the etf is the costs remain the same. So they have a huge interest in a fast growing etf 

 Their value proposition to older folks and corporations seem to be, they don’t have to worry about self-custody.

Of course, for us plebs it’s opposite. But we are not their target market. 

 Includes GMTC overhang in your analysis? 

 Not an analysis, just adding the reported numbers, which don't include GBTC.