Except they will likely have to sell it back, and some already have to buyback stocks and payoff debt. This can actually cause more downward price pressure. It takes a company say 2 years to buy 5,000 Bitcoin. Positive price pressure for 2 years, but barely noticed in markets. Then boom, suddenly their stock tanks, no positive cash flow, no more equity investors, done. Must sell the Bitcoin,mostly all at once or at least rapidly to cover. Much larger downward price pressure than ever hallened upwards. It's stupid to just buy Bitcoin and keep it on your balance sheet with no cash flow. It's worse for people to invest in this crap.