My Comment : As I've noted in an earlier post, I think companies that are buying a lot of Bitcoin and companies that are dealing in Bitcoin are potential shorts.
Excerpt: How Bitcoin Could Lead To A Broader Crash If Bitcoin crashed tomorrow, it might not cause a market crash. What would make the stock market more vulnerable to a Bitcoin crash would be broader corporate exposure to Bitcoin. That may be starting to happen. In a recent post, we mentioned how the CEO of one of our top names, MicroStrategy (MSTR), convinced the CEO of another of our top names, Tesla (TSLA), to add Bitcoin to Tesla's balance sheet.