MAFOX vs. MSTY

Last updated Jun 25, 2026

MAFOX (BlackRock Large Cap Focus Growth Fund) and MSTY (YieldMax™ MSTR Option Income Strategy ETF) are both funds - MAFOX is a Large Cap Growth Equities fund managed by BlackRock, while MSTY is a Derivative Income fund actively managed by YieldMax. Over the past year, MAFOX returned 17.23% vs -70.33% for MSTY. At a 0.46 correlation, their price movements are largely independent. MAFOX charges 0.67%/yr vs 0.99%/yr for MSTY.

Performance

MAFOX vs. MSTY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BlackRock Large Cap Focus Growth Fund (MAFOX) 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, MAFOX achieves a 8.49% return, which is significantly higher than MSTY's -34.39% return.

MAFOX

• 1D: -2.23%
• 1M: -2.02%
• YTD: 8.49%
• 6M: 6.85%
• 1Y: 17.23%
• 3Y*: 22.30%
• 5Y*: 10.02%
• 10Y*: 17.39%

MSTY

• 1D: -9.12%
• 1M: -37.97%
• YTD: -34.39%
• 6M: -36.51%
• 1Y: -70.33%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

MAFOX vs. MSTY - Yearly Performance Comparison

	2026 (YTD)	2025	2024
MAFOX BlackRock Large Cap Focus Growth Fund	8.49%	12.76%	22.14%
MSTY YieldMax™ MSTR Option Income Strategy ETF	-34.39%	-42.71%	212.16%

Correlation

The correlation between MAFOX and MSTY is 0.52, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.52
Correlation (All Time) Calculated using the full available price history since Feb 22, 2024	0.46

The correlation between MAFOX and MSTY has been stable across timeframes, ranging from 0.46 to 0.52 - a consistent structural relationship.

Return for Risk

MAFOX vs. MSTY — Risk / Return Rank

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

MAFOX

MAFOX Risk / Return Rank: 16
MAFOX Sharpe Ratio Rank: 17
MAFOX Sortino Ratio Rank: 16
MAFOX Omega Ratio Rank: 17
MAFOX Calmar Ratio Rank: 14
MAFOX Martin Ratio Rank: 16

MSTY

MSTY Risk / Return Rank: 1
MSTY Sharpe Ratio Rank: 1
MSTY Sortino Ratio Rank: 0
MSTY Omega Ratio Rank: 0
MSTY Calmar Ratio Rank: 1
MSTY Martin Ratio Rank: 1

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.

MAFOX vs. MSTY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BlackRock Large Cap Focus Growth Fund (MAFOX) 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.

	MAFOX	MSTY	Difference
Sharpe ratio: Return per unit of total volatility	1.05	-1.13	+2.18
Sortino ratio: Return per unit of downside risk	1.48	-2.17	+3.65
Omega ratio: Gain probability vs. loss probability	1.19	0.76	+0.43
Calmar ratio: Return relative to maximum drawdown	1.16	-0.95	+2.11
Martin ratio: Return relative to average drawdown	3.80	-1.42	+5.22

MAFOX vs. MSTY - Sharpe Ratio Comparison

The current MAFOX Sharpe Ratio is 1.05, which is higher than the MSTY Sharpe Ratio of -1.13. The chart below compares the historical Sharpe Ratios of MAFOX 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

MAFOX vs. MSTY - Drawdown Comparison

The maximum MAFOX drawdown since its inception was -89.93%, which is greater than MSTY's maximum drawdown of -74.21%. Use the drawdown chart below to compare losses from any high point for MAFOX and MSTY.

Drawdown Indicators

	MAFOX	MSTY	Difference
Max Drawdown Largest peak-to-trough decline	-89.93%	-74.21%	-15.72%
Max Drawdown (1Y) Largest decline over 1 year	-16.70%	-74.21%	+57.51%
Max Drawdown (3Y) Largest decline over 3 years	-24.48%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-42.39%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-42.39%	—	—
Current Drawdown Current decline from peak	-6.31%	-74.21%	+67.90%
Average Drawdown Average peak-to-trough decline	-54.12%	-27.06%	-27.06%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.09%	49.58%	-44.49%

Volatility

MAFOX vs. MSTY - Volatility Comparison

The current volatility for BlackRock Large Cap Focus Growth Fund (MAFOX) is 7.53%, while YieldMax™ MSTR Option Income Strategy ETF (MSTY) has a volatility of 20.77%. This indicates that MAFOX 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

	MAFOX	MSTY	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.53%	20.77%	-13.24%
Volatility (6M) Calculated over the trailing 6-month period	14.61%	50.35%	-35.74%
Volatility (1Y) Calculated over the trailing 1-year period	18.48%	62.64%	-44.16%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.78%	72.01%	-48.23%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.74%	72.01%	-49.27%

MAFOX vs. MSTY - Expense Ratio Comparison

MAFOX has a 0.67% expense ratio, which is lower than MSTY's 0.99% expense ratio.

Dividends

MAFOX vs. MSTY - Dividend Comparison

MAFOX's dividend yield for the trailing twelve months is around 14.77%, less than MSTY's 314.78% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MAFOX BlackRock Large Cap Focus Growth Fund	14.77%	16.03%	4.04%	3.05%	2.01%	11.20%	0.53%	5.45%	4.43%	4.06%	0.00%	4.66%
MSTY YieldMax™ MSTR Option Income Strategy ETF	314.78%	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 MAFOX and MSTY in my portfolio?

MAFOX and MSTY have a correlation of 0.52, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MAFOX or MSTY?

MSTY has higher volatility (20.77%) compared to MAFOX (7.53%). In terms of maximum drawdown, MAFOX dropped -89.93% vs MSTY's -74.21%.

Which has better risk-adjusted returns?

MAFOX currently has the higher Sharpe Ratio (1.05 vs -1.13), 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.