MSTY vs. AMECX

Last updated Jun 20, 2026

MSTY (YieldMax™ MSTR Option Income Strategy ETF) and AMECX (American Funds The Income Fund of America Class A) are both funds - MSTY is a Derivative Income fund actively managed by YieldMax, while AMECX is a Diversified Portfolio fund managed by American Funds. Over the past year, MSTY returned -64.25% vs 14.23% for AMECX. At a 0.34 correlation, their price movements are largely independent. MSTY charges 0.99%/yr vs 0.56%/yr for AMECX.

Performance

MSTY vs. AMECX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in YieldMax™ MSTR Option Income Strategy ETF (MSTY) and American Funds The Income Fund of America Class A (AMECX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MSTY achieves a -22.84% return, which is significantly lower than AMECX's 5.48% return.

MSTY

• 1D: -3.45%
• 1M: -29.31%
• YTD: -22.84%
• 6M: -27.46%
• 1Y: -64.25%
• 3Y*: —
• 5Y*: —
• 10Y*: —

AMECX

• 1D: -0.40%
• 1M: -0.52%
• YTD: 5.48%
• 6M: 6.05%
• 1Y: 14.23%
• 3Y*: 12.78%
• 5Y*: 8.08%
• 10Y*: 8.39%

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

MSTY vs. AMECX - Yearly Performance Comparison

	2026 (YTD)	2025	2024
MSTY YieldMax™ MSTR Option Income Strategy ETF	-22.84%	-42.71%	212.16%
AMECX American Funds The Income Fund of America Class A	5.48%	17.77%	10.75%

Correlation

The correlation between MSTY and AMECX is 0.32, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.32
Correlation (All Time) Calculated using the full available price history since Feb 22, 2024	0.34

Return for Risk

MSTY vs. AMECX — Risk / Return Rank

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

MSTY

MSTY Risk / Return Rank: 1
MSTY Sharpe Ratio Rank: 1
MSTY Sortino Ratio Rank: 1
MSTY Omega Ratio Rank: 1
MSTY Calmar Ratio Rank: 1
MSTY Martin Ratio Rank: 2

AMECX

AMECX Risk / Return Rank: 49
AMECX Sharpe Ratio Rank: 54
AMECX Sortino Ratio Rank: 54
AMECX Omega Ratio Rank: 50
AMECX Calmar Ratio Rank: 43
AMECX Martin Ratio Rank: 44

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.

MSTY vs. AMECX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for YieldMax™ MSTR Option Income Strategy ETF (MSTY) and American Funds The Income Fund of America Class A (AMECX). 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.

	MSTY	AMECX	Difference
Sharpe ratio: Return per unit of total volatility	-1.04	1.93	-2.97
Sortino ratio: Return per unit of downside risk	-1.83	2.73	-4.56
Omega ratio: Gain probability vs. loss probability	0.80	1.35	-0.55
Calmar ratio: Return relative to maximum drawdown	-0.90	2.33	-3.23
Martin ratio: Return relative to average drawdown	-1.31	8.61	-9.92

MSTY vs. AMECX - Sharpe Ratio Comparison

The current MSTY Sharpe Ratio is -1.04, which is lower than the AMECX Sharpe Ratio of 1.93. The chart below compares the historical Sharpe Ratios of MSTY and AMECX, 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

MSTY vs. AMECX - Drawdown Comparison

The maximum MSTY drawdown since its inception was -71.79%, which is greater than AMECX's maximum drawdown of -41.92%. Use the drawdown chart below to compare losses from any high point for MSTY and AMECX.

Drawdown Indicators

	MSTY	AMECX	Difference
Max Drawdown Largest peak-to-trough decline	-71.79%	-41.92%	-29.87%
Max Drawdown (1Y) Largest decline over 1 year	-71.79%	-6.13%	-65.66%
Max Drawdown (3Y) Largest decline over 3 years	—	-8.58%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-15.78%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-26.13%	—
Current Drawdown Current decline from peak	-69.67%	-2.02%	-67.65%
Average Drawdown Average peak-to-trough decline	-26.82%	-4.45%	-22.37%
Ulcer Index Depth and duration of drawdowns from previous peaks	48.95%	1.66%	+47.29%

Volatility

MSTY vs. AMECX - Volatility Comparison

YieldMax™ MSTR Option Income Strategy ETF (MSTY) has a higher volatility of 19.32% compared to American Funds The Income Fund of America Class A (AMECX) at 2.30%. This indicates that MSTY's price experiences larger fluctuations and is considered to be riskier than AMECX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MSTY	AMECX	Difference
Volatility (1M) Calculated over the trailing 1-month period	19.32%	2.30%	+17.02%
Volatility (6M) Calculated over the trailing 6-month period	49.58%	5.82%	+43.76%
Volatility (1Y) Calculated over the trailing 1-year period	61.87%	7.41%	+54.46%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	71.86%	9.47%	+62.39%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	71.86%	10.69%	+61.17%

MSTY vs. AMECX - Expense Ratio Comparison

MSTY has a 0.99% expense ratio, which is higher than AMECX's 0.56% expense ratio.

Dividends

MSTY vs. AMECX - Dividend Comparison

MSTY's dividend yield for the trailing twelve months is around 267.66%, more than AMECX's 9.55% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AMECX American Funds The Income Fund of America Class A	9.55%	9.94%	6.38%	2.93%	6.98%	6.67%	2.80%	5.01%	7.48%	4.26%	3.09%	5.09%
MSTY YieldMax™ MSTR Option Income Strategy ETF	267.66%	294.61%	104.56%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both MSTY and AMECX in my portfolio?

MSTY and AMECX have a correlation of 0.32, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MSTY or AMECX?

MSTY has higher volatility (19.32%) compared to AMECX (2.30%). In terms of maximum drawdown, MSTY dropped -71.79% vs AMECX's -41.92%.

Which has better risk-adjusted returns?

AMECX currently has the higher Sharpe Ratio (1.93 vs -1.04), 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.