The most regulated way to short it is via CME Bitcoin futures[0]. However, it's quite heavily leveraged at 5 bitcoins per contract -- meaning each contract is ~

The most regulated way to short it is via CME Bitcoin futures[0]. However, it's quite heavily leveraged at 5 bitcoins per contract -- meaning each contract is ~$157k of notional value at today's close. This, combined with the volatility of the thing, is easily above my personal risk tolerance, but obviously YMMV. Given the history of how financial bubbles play out, I personally would not recommend shorting it outright. [0]: https://www.cmegroup.com/trading/equity-index/us-index/bitcoin_contract_specifications.html https://www.cmegroup.com/trading/equity-index/us-index/bitco...