GMAY vs. SMST

Last updated Jul 14, 2026

GMAY (FT Cboe Vest U.S. Equity Moderate Buffer ETF - May) and SMST (Defiance Daily Target 2X Short MSTR ETF) are both exchange-traded funds - GMAY is a Options Trading fund actively managed by FT Vest, while SMST is a Inverse Equities fund actively managed by Defiance. Both are actively managed. Over the past year, GMAY returned 9.88% vs 240.03% for SMST. At a correlation of -0.45, they often move in opposite directions. GMAY charges 0.85%/yr vs 1.29%/yr for SMST.

Performance

GMAY vs. SMST - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in FT Cboe Vest U.S. Equity Moderate Buffer ETF - May (GMAY) and Defiance Daily Target 2X Short MSTR ETF (SMST). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, GMAY achieves a 4.53% return, which is significantly higher than SMST's -27.96% return.

GMAY

• 1D: -0.43%
• 1M: 0.80%
• 6M: 3.98%
• YTD: 4.53%
• 1Y: 9.88%
• 3Y*: 11.18%
• 5Y*: —
• 10Y*: —

SMST

• 1D: 5.26%
• 1M: 44.38%
• 6M: -15.07%
• YTD: -27.96%
• 1Y: 240.03%
• 3Y*: —
• 5Y*: —
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

GMAY vs. SMST - Yearly Performance Comparison

	2026 (YTD)	2025	2024
GMAY FT Cboe Vest U.S. Equity Moderate Buffer ETF - May	4.53%	11.94%	3.65%
SMST Defiance Daily Target 2X Short MSTR ETF	-27.96%	-44.36%	-91.71%

Correlation

The correlation between GMAY and SMST is -0.43, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.43
Correlation (All Time) Calculated using the full available price history since Aug 21, 2024	-0.45

Return for Risk

GMAY vs. SMST — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

GMAY

GMAY Risk / Return Rank: 81
GMAY Sharpe Ratio Rank: 76
GMAY Sortino Ratio Rank: 79
GMAY Omega Ratio Rank: 83
GMAY Calmar Ratio Rank: 78
GMAY Martin Ratio Rank: 90

SMST

SMST Risk / Return Rank: 60
SMST Sharpe Ratio Rank: 62
SMST Sortino Ratio Rank: 63
SMST Omega Ratio Rank: 63
SMST Calmar Ratio Rank: 71
SMST Martin Ratio Rank: 43

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

GMAY vs. SMST - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for FT Cboe Vest U.S. Equity Moderate Buffer ETF - May (GMAY) and Defiance Daily Target 2X Short MSTR ETF (SMST). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	GMAY	SMST	Difference
Sharpe ratio: Return per unit of total volatility	1.90	1.62	+0.28
Sortino ratio: Return per unit of downside risk	2.78	2.33	+0.45
Omega ratio: Gain probability vs. loss probability	1.39	1.30	+0.09
Calmar ratio: Return relative to maximum drawdown	3.19	2.83	+0.36
Martin ratio: Return relative to average drawdown	16.24	5.47	+10.76

GMAY vs. SMST - Sharpe Ratio Comparison

The current GMAY Sharpe Ratio is 1.90, which is comparable to the SMST Sharpe Ratio of 1.62. The chart below compares the historical Sharpe Ratios of GMAY and SMST, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

GMAY vs. SMST - Drawdown Comparison

The maximum GMAY drawdown since its inception was -11.75%, smaller than the maximum SMST drawdown of -99.25%. Use the drawdown chart below to compare losses from any high point for GMAY and SMST.

Drawdown Indicators

	GMAY	SMST	Difference
Max Drawdown Largest peak-to-trough decline	-11.75%	-99.25%	+87.50%
Max Drawdown (1Y) Largest decline over 1 year	-3.11%	-85.39%	+82.28%
Max Drawdown (3Y) Largest decline over 3 years	-11.75%	—	—
Current Drawdown Current decline from peak	-0.43%	-97.17%	+96.74%
Average Drawdown Average peak-to-trough decline	-0.72%	-90.89%	+90.17%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.61%	44.09%	-43.48%

Volatility

GMAY vs. SMST - Volatility Comparison

The current volatility for FT Cboe Vest U.S. Equity Moderate Buffer ETF - May (GMAY) is 2.09%, while Defiance Daily Target 2X Short MSTR ETF (SMST) has a volatility of 56.59%. This indicates that GMAY experiences smaller price fluctuations and is considered to be less risky than SMST based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	GMAY	SMST	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.09%	56.59%	-54.50%
Volatility (6M) Calculated over the trailing 6-month period	4.44%	135.88%	-131.44%
Volatility (1Y) Calculated over the trailing 1-year period	5.22%	149.23%	-144.01%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	7.85%	167.74%	-159.89%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	7.85%	167.74%	-159.89%

GMAY vs. SMST - Expense Ratio Comparison

GMAY has a 0.85% expense ratio, which is lower than SMST's 1.29% expense ratio.

Dividends

GMAY vs. SMST - Dividend Comparison

Neither GMAY nor SMST has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both GMAY and SMST in my portfolio?

GMAY and SMST have a correlation of -0.43, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, GMAY or SMST?

SMST has higher volatility (56.59%) compared to GMAY (2.09%). In terms of maximum drawdown, GMAY dropped -11.75% vs SMST's -99.25%.

Which ETF is better, GMAY or SMST?

On 1-year performance, SMST leads with 240.03% vs 9.88% for GMAY. On fees, GMAY is cheaper at 0.85% per year. On volatility, GMAY has been the lower-risk option at 2.09%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, GMAY or SMST?

Over the 1-year period, SMST has performed better with a 240.03% return vs 9.88%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, GMAY or SMST?

GMAY is cheaper with a 0.85% expense ratio, compared with 1.29% for SMST.

Which ETF pays a higher dividend yield, GMAY or SMST?

GMAY and SMST have nearly identical dividend yields, around 0.00%.

What is the main difference between GMAY and SMST?

GMAY is categorized as Options Trading, while SMST is Inverse Equities. They also come from different issuers: FT Vest and Defiance. Their fees differ too: 0.85% for GMAY and 1.29% for SMST.

Which has better risk-adjusted returns?

GMAY currently has the higher Sharpe Ratio (1.90 vs 1.62), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.