Banks are earning big profit from our deposits, they earn bigger than the interest that we get from our deposit because they put a bigger interest rate through thier borrower's or lenders, i think bank is not too far from big whales in crypto they buy or collect coins in dip and they sell in bull and they earn bigger from the holders that sell at loss they are almost the same or what? What dou you think?
It could be happening already, who knows? But there is nothing to prove here that Banks are investing money in Crypto, I think they understand the risk between crypto investment and Stock investment and I am aware of their involvement in the Stock market, they do use deposits from customers' fixed accounts to invest into Stock market, Robert Kiyosaki revealed something like this in one of his videos too, the Banks outsmart the masses, that keeping money in the bank is the best practice for the people, they promised them some percentage per year but they already knew what they are going to do with the customers money.