Key Highlights:
• GraniteShares YieldBOOST SMCI ETF was trading near $6.14 in today's session, up 2.32%, with a distribution Yield near 228%
• The fund sells put Options tied to ETFs that seek 2x (200%) daily leveraged SMCI results, with puts running from roughly 40% out-of-the-money to 10% in-the-money and one-week to one-month maturities
• Expense ratio stands at 1.07%, with the fund having launched on September 30, 2025
• A meaningful share of past distributions has historically included return of capital, which can mechanically lower NAV over time
GraniteShares YieldBOOST SMCI ETF (SMYY) is issued by GraniteShares Inc.. The fund sells put options tied to ETFs that seek 2x (200%) daily leveraged SMCI results, with puts running from roughly 40% out-of-the-money to 10% in-the-money and one-week to one-month maturities. Because it references Super Micro Computer, Inc. (NASDAQ:SMCI), its price and payout both move with the underlying's volatility, distinguishing it from broad-market index products where risk is spread across many holdings.
This structure is common across the current generation of single-stock and thematic option-income ETFs, where distributions are funded primarily through option premium rather than through dividends paid by the underlying company itself. That distinction matters for understanding both the size and the sustainability of the yield being advertised.
Price Action in Today's Session
Shares were trading near $6.14 in today's session, up 2.32%. That move reflects the fund's underlying mechanics: because its value is tied directly to options written on or exposure derived from Super Micro Computer, Inc., day-to-day price swings in the fund tend to track, and often amplify, whatever direction the underlying stock or asset is moving.
The Income and Distribution Story
The fund's 228% distribution yield is a trailing, annualized figure that extrapolates recent payouts against the current share price, not a promised or guaranteed return. Because the share price can move sharply in either direction, the same dollar distribution can translate into a very different annualized percentage from one week to the next.
A meaningful share of this fund's historical distributions has been classified as return of capital, meaning part of each payout can represent investors' own principal being returned rather than income generated by the underlying options strategy. This return-of-capital component mechanically reduces net asset value over time, which is part of why a high headline yield can coexist with a share price well below earlier levels.
Performance and Risk
Writing puts caps upside during a powerful SMCI rally, while declines still weigh on the fund. Concentration rests on one company with its own governance and export-control headlines, and daily-reset compounding on the leveraged underlying magnifies volatility. These structural factors apply independent of any single Trading session and are central to evaluating whether the fund's current yield is likely to persist at anything close to its present level.
What Investors Should Watch Next
Going forward, investors should watch the outcome of Supermicro's independent board review and any export-control developments; whether its record order Backlog converts to revenue; and the fund's weekly distribution trend against its NAV. Together, these factors will likely do more to determine the fund's near-term trajectory than any single day's price move, including today's.






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