Share-split context: A reverse split was recorded on Jun 2, 2026 with coefficient 0.166667. A reverse split combines multiple old shares into fewer new shares and mechanically raises the quoted price per share. That mechanical increase does not restore lost investment value. The returns in this report are already split-adjusted, while reverse-split history remains a separate structural warning.

Understanding the GraniteShares YieldBoost MSTR ETF (MTYY)

The GraniteShares YieldBoost MSTR ETF (MTYY) is a single-stock ETF that focuses on crypto-related assets and uses an option-income strategy to generate cash for investors. While it offers a very high distribution yield, it has experienced a significant decline in share price.

What this ETF is trying to do

MTYY is designed to provide income to investors by using options related to a single stock. It is categorized as a crypto-related fund. Instead of just holding a stock, it uses an "option-income" strategy to create frequent cash payments.

What the numbers show

The share price of MTYY has fallen sharply. The split-adjusted price return for the last year is -86.39%. For the current year to date, the price return is -65.46%.

When looking at the total return (which includes the cash distributions), the numbers are still negative. The one-year total return is -66.19%, and the year-to-date total return is -32.54%. This shows that the cash paid out to investors did not offset the drop in the share price.

Income and distribution explanation

MTYY pays distributions very frequently, often on a weekly-like basis. In the last 12 months, it has made 52 payouts, mostly on Fridays.

The distribution yield is approximately 56.56%. While this percentage looks very high, it is important to remember that a high yield does not guarantee a profit. In this case, the high distribution yield has existed alongside a severe decline in the share price.

Price and NAV erosion explanation

The supplied data is sufficient to evaluate price erosion, but it does not include enough historical NAV-per-share data to confirm or rule out NAV erosion.

However, the price-based evidence is significant. MTYY has a "severe" erosion severity rating and an erosion score of 10. Because of the split-adjusted price trend and the erosion score, a severe erosion-risk flag has been triggered.

Additionally, the fund has a history of a reverse split (most recently on June 2, 2026). In a reverse split, multiple old shares are combined into fewer new shares, which mechanically raises the per-share price. This mechanical increase does not restore lost investment value.

Pros

• Frequent Income: The fund provides very frequent cash distributions (52 times in the last year).

• High Yield: It offers a high distribution yield for those seeking immediate cash flow.

Cons

• Severe Price Decline: The share price has dropped significantly over the last year.

• Negative Total Returns: Even with distributions, the total return is deeply negative.

• High Risk: The fund has a severe erosion-risk flag and an "F" income rating grade.

Beginner takeaway

MTYY is a high-risk ETF that pays out a lot of cash frequently, but its share price has fallen drastically. This is a reminder that a high distribution yield can be misleading if the underlying share price is eroding. Investors often care about "principal stability," which means keeping the original amount of money they invested; MTYY has not shown principal stability.