MSTY writes covered calls (selling call options) on MSTR to produce income paid through dividends to the fund holders.

If MSTR goes over the strike price of the covered call they are forced to deliver MSTR shares to the call buyer. When the price of MSTR is significantly higher than where they sold the call it results in the fund having to purchase MSTR at very high prices. If MSTR rallies a lot they won't have the capital to purchase the shares; blowing up the fund,

This fund gets you 8% return per month until MSTR rallies a lot then it will implode. Picking up nickels in front of a steam roller. The only way this stays solvent is if MSTR falls in price or MSTR stock does not move.