AMZY vs MSTY: Which Is the Better Pick in 2026?

Overview

AMZY and MSTY are both YieldMax ETFs employing synthetic covered call strategies on single stocks—Amazon and MicroStrategy, respectively—to generate weekly income. The funds don't own the underlying shares directly; instead, they use standardized exchange-traded options to create capped upside exposure and harvest option premiums. The critical distinction is their underlying assets: AMZY tracks a stable large-cap technology company, while MSTY tracks a smaller, Bitcoin-heavy enterprise software company whose equity volatility feeds substantially higher option premiums.

How they differ

The headline difference is yield and volatility. MSTY distributes 78.89% annually versus AMZY's 63.58%, a gap primarily driven by MSTR's higher equity volatility—reflected in MSTY's beta of 2.56 compared to AMZY's 1.13. That elevated volatility makes MSTR options more expensive to sell, generating richer premiums for the fund to distribute. AMZY launched in July 2023 and has grown to $255M in AUM; MSTY is newer (February 2024) but larger at $753M, suggesting investor appetite for higher-yield, higher-risk option income. Both charge sub-1.01% expense ratios, but the real cost difference lies in what lies underneath: AMZY caps gains on a company with steady earnings and cash flow, while MSTY caps gains on a speculative play whose valuation is heavily influenced by Bitcoin price movements. MSTY's leverage to cryptocurrency is material but indirect—via MSTR's business model, not direct Bitcoin holdings.

Who each is best for

• AMZY: Fits investors seeking weekly dividend income from a liquid, recognizable mega-cap technology holding, who accept capped capital appreciation in exchange for predictable option premium harvesting.

• MSTY: Fits investors with high income need and elevated risk tolerance who view MicroStrategy as a leveraged Bitcoin proxy and are comfortable with meaningfully larger price swings, higher NAV volatility, and the structural risk of holding a single, speculative equity through a covered call overlay.

Key risks to know

• NAV erosion at extreme distribution yields. MSTY's 78.89% annualized distribution yield is unsustainably high relative to typical equity returns; it likely relies on meaningful return-of-capital treatment. Continued distributions at this rate without underlying capital appreciation will erode net asset value over time.

• Single-stock concentration and headline risk. Both funds are entirely dependent on one company. For AMZY, this is Amazon's operational performance; for MSTY, it's MicroStrategy's ability to service debt and maintain shareholder support while holding Bitcoin as treasury reserves. Corporate actions, missed earnings, or strategic missteps at either company have nowhere to hide.

• Capped upside and call assignment risk. When the underlying stock rises above the call strike, shares are called away at a predetermined price. AMZY investors forgo Amazon's gains above the cap; MSTY investors forgo MSTR's upside. In a strong bull market, this opportunity cost compounds. Early or unexpected call assignment can also interrupt the income stream.

• MSTR volatility and cryptocurrency sensitivity. MSTY's beta of 2.56 means price swings will be roughly 2.5 times as sharp as the overall market. Since MicroStrategy's stock price is heavily correlated with Bitcoin, geopolitical or macroeconomic shocks to crypto sentiment can trigger sharp MSTY drawdowns unrelated to MSTR's business operations.

• Synthetic options structure and counterparty risk. Both funds rely on options markets and counterparties to execute their strategies. Periods of low implied volatility or market stress could compress option premiums, reducing distributable income. Wide bid-ask spreads in MSTR or AMZN options during volatility spikes could also affect execution quality.

Bottom line

AMZY's 63.58% yield and 1.13 beta suit investors prioritizing income stability from a household-name mega-cap with moderate swings. MSTY's 78.89% distribution and 2.56 beta cater to those chasing maximum current income while accepting significant price volatility tied to a single, crypto-sensitive company. Both strategies impose a hard ceiling on capital appreciation through their covered call mechanics; the choice hinges on whether the underlying company's risk profile and the income-versus-upside tradeoff align with your expectations. Past performance does not guarantee future results.