I never claimed to be an expert of this world, nobody are. But I actually read that part (same wiki page that I linked to) before you posted this link.
Citadel LLC is a large organisation. Naturally, they have different business segments. I'm not going to discuss this anymore unless you come up with a valid point. I'm not here for a troll fight.
Well, I have, because I know this domain very well and the fact that it is Citadel Securities, mean it is not the hedge fund business. You can choose to believe me or not of course

What is your point?
This:
That is incorrect, Citadel here is acting as a broker, they are not the one buying, they are executing orders on behalf of someone else (like Ameritrade, eTrade etc...)
They are not buying for their hedge fund, someone simply traded on their trading platform.
My point was (1 million posts ago, lol) that Citadel Securities brings great liquidity to GBTC, while the ask side has max 150.000 bitcoin in matured funds.
From Wikipedia: "Citadel Securities ... execute one out of every four retail trades at the NYSE and NASDAQ."