MSTU is a leveraged ETF that seeks daily investment results corresponding to 200% of the daily performance of the MicroStrategy Incorporated (MSTR) stock. It is designed as a tactical tool for experienced traders to take a bullish (long) position in MSTR, a company known for its significant Bitcoin holdings. Due to the effects of compounding and leverage, the ETF is intended to be held for a single day and is not suitable for long-term investment.