In the grand scheme of things sure, but definitely a large influx as compared to the size of the market in Coinbase.

We're talking probably low 2-digit millions to make big moves I think.

Yep, around $70m to get it above $20k.

What institutional investor is going to put 1% into Bitcoin?

How do you determine the $70m?

You look at the "Depth Chart" -- it shows you how much people are selling (or buying if you go to the right) in a way that escalates as you get further away from the mid-market price that is currently executing.