Here are a few that I know about so far:
- BITI - Inverse ETF based in Canada
- Shorting(*) Bitcoin Futures on the CBOE and CME
- Shorting(*) Bitcoin ecosystem companies: COIN, RIOT, MARA, EBON, SOS, MSTR
The problem in betting against bitcoin, is that at any time and without warning, the price can shoot up -- even if longer-term it is worth $0. Which means a successful strategy will need to employ Kelly Criterion, etc, which is beyond my analytical capabilities right now.
Anybody got a strategy or just some thoughts they're willing to share?