I'm sure they spend millions as well. It would take several years of 0.2% transaction fees to save up $65 million.
very interesting. i checked via
https://data.bitcoinity.org/markets/volume/6m?c=c&exchange=bitfinex&t=band their total volume was $3,179,103.85 in the past 6 months and with 0.2% trading fee they can make $12,716.41 (an exchange take fee twice from the one making the order and the one filling it although fees may be different).
to make millions they had to have other ways of making money! margin trading fees, if that is a thing (i have never looked at it!), lending (if they have it), trading themselves on their own platform or other places, also they have altcoins too so we should consider those volumes too.
I think the margin trading could have yielded a lot of profit, but the probability could be that they found the lost coins, < some employee within the company came forward > and that they slowly but surely worked the returned coins back into the system. < trading those stolen coins and taking the fees back into the system >
This is just a conspiracy theory, and something the banks are doing. They force people to keep quite, when they get hacked and it was a inside job. < friend of mine got his stolen money back, but he had to make a deal with their lawyers to keep quite about it >
