This is my third thesis on the YieldMax MSTR Option Income Strategy ETF ( MSTY ), with which I aim to argue that this ETF is now a ‘strong sell.’Building a high-income portfolio is about more than just buying superficially high-yielding assets, it also involves preserving and growing wealth over time. I come here as an investment analyst, not a financial advisor, with the aim of educating readers on how to do both. My focus will be on opportunities that, at a minimum, match the market's risk-return tradeoff ...