https://www.btcbreakdown.com/p/issue-304Paper Bitcoin manipulation0.0%Coinbase custody swaps50.0%Off-chain dark pools0.0%They're not, it's FUD50.0%6 votes \ poll ended
Probably off chain swaps. But I also wouldn't rule out plain incompetence (i.e. the numbers are off because of bad record keeping, lost keys, or worse--theft and fraud)