The YieldMax MSTR Option Income Strategy ETF (MSTY) is analyzed as a strong sell candidate with a score of -7.272 as of August 29, 2025. The ETF has experienced a 26.71% loss since July 23, 2025, translating to an average daily loss of -0.95%. Technical analysis indicates the ETF has broken through a declining short-term trend. A potential new baseline for the upcoming trend is suggested at $10.91. The 3-month trend indicates a potential change of -19.6% with a range from -18.95% to +5.51%. The 12-month analysis projects a -23.97% change with a wide fluctuation range between -60.8% and +75.21%. Trading volume increased. Fibonacci levels suggest resistance at $15.62, with no immediate support. There are few positive technical signals, with both short and long-term moving averages indicating sell signals. Volume rose on falling prices. A sell signal was issued from a pivot top point on August 11, 2025, and it has fallen -20.06%.