AMECX vs. MSTY

Last updated Jun 20, 2026

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

Performance

AMECX vs. MSTY - Performance Comparison

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

Returns By Period

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

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%

MSTY

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

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

AMECX vs. MSTY - Yearly Performance Comparison

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

Correlation

The correlation between AMECX and MSTY 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

AMECX vs. MSTY — Risk / Return Rank

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

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

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

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.

AMECX vs. MSTY - Risk-Adjusted Trends Comparison

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

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

AMECX vs. MSTY - Sharpe Ratio Comparison

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

AMECX vs. MSTY - Drawdown Comparison

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

Drawdown Indicators

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

Volatility

AMECX vs. MSTY - Volatility Comparison

The current volatility for American Funds The Income Fund of America Class A (AMECX) is 2.30%, while YieldMax™ MSTR Option Income Strategy ETF (MSTY) has a volatility of 19.32%. This indicates that AMECX experiences smaller price fluctuations and is considered to be less risky than MSTY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

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

AMECX vs. MSTY - Expense Ratio Comparison

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

Dividends

AMECX vs. MSTY - Dividend Comparison

AMECX's dividend yield for the trailing twelve months is around 9.55%, less than MSTY's 267.66% 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 AMECX and MSTY in my portfolio?

AMECX and MSTY 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, AMECX or MSTY?

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

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.