Buying $MSTR call options, given the company's sizable Bitcoin holdings, has been a convenient way to speculate on rising Bitcoin prices with leverage. It's not uncommon for the stock to appreciate +10% on a 5-8% Bitcoin move, and the corresponding calls 500-1000% or more. This trade requires a hefty risk tolerance, as it goes south rather quickly if Bitcoin pulls back; also, the stock does not always trade as you'd expect given Bitcoin's chart for any given day, sometimes there is a delay in how the stock acts to the Bitcoin price. The premiums are also very high as well as the implied volatility; this requires patience and the understanding that you could lose 100% of your investment. If you are a Bitcoin bull, it's best to use a small % of your total portfolio allocation to this trade, keep 99% of your money in Bitcoin itself. When this trade works, however, you can use the proceeds from your +1000% gains on the call options to then buy more Bitcoin. This is not financial advice, good luck.