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MYN vs. WFSPX
Performance
Return for Risk
Drawdowns
Volatility
Dividends

MYN vs. WFSPX

Last updated Jun 4, 2026

MYN (BlackRock MuniYield New York Quality Fund) and WFSPX (iShares S&P 500 Index Fund) are both mutual funds - MYN is a Municipal Bonds fund actively managed by BlackRock, while WFSPX is a S&P 500 fund tracking the S&P 500 Index. MYN is actively managed, while WFSPX is passively managed. Over the past 10 years, MYN returned 1.19%/yr vs 15.46%/yr for WFSPX. At a 0.09 correlation, their price movements are largely independent. MYN charges 2.24%/yr vs 0.03%/yr for WFSPX.

Performance

MYN vs. WFSPX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BlackRock MuniYield New York Quality Fund (MYN) and iShares S&P 500 Index Fund (WFSPX). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, MYN achieves a 3.53% return, which is significantly lower than WFSPX's 10.87% return. Over the past 10 years, MYN has underperformed WFSPX with an annualized return of 1.19%, while WFSPX has yielded a comparatively higher 15.46% annualized return.

MYN

1D
-0.33%
1M
1.53%
YTD
3.53%
6M
1.51%
1Y
11.46%
3Y*
6.32%
5Y*
-1.62%
10Y*
1.19%

WFSPX

1D
-0.74%
1M
4.17%
YTD
10.87%
6M
10.77%
1Y
27.97%
3Y*
22.41%
5Y*
13.88%
10Y*
15.46%
*Multi-year figures are annualized to reflect compound growth (CAGR)

MYN vs. WFSPX - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
MYN
BlackRock MuniYield New York Quality Fund		3.53%4.67%2.87%9.80%-27.05%10.83%6.00%18.31%-7.05%6.96%
WFSPX
iShares S&P 500 Index Fund		10.87%17.83%24.94%26.25%-18.14%28.63%18.43%31.45%-4.83%21.27%

Correlation

The correlation between MYN and WFSPX is 0.26, which is low. Their price movements are largely independent, making them effective diversification partners.

Correlation
Correlation (1Y)
Calculated over the trailing 1-year period

0.26

Correlation (3Y)
Calculated over the trailing 3-year period

0.30

Correlation (5Y)
Calculated over the trailing 5-year period

0.26

Correlation (10Y)
Calculated over the trailing 10-year period

0.19

Correlation (All Time)
Calculated using the full available price history since Jul 6, 1993

0.09

The correlation between MYN and WFSPX shifts across timeframes, from 0.09 (all time) to 0.30 (3 years), reflecting how their relationship changes across market environments.

Compare stocks, funds, or ETFs

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BlackRock MuniYield New York Quality Fund

iShares S&P 500 Index Fund

Often compared with MYN:
MYN vs. NNYMYN vs. PZTMYN vs. MUCMYN vs. FHMIXMYN vs. DFSMXMYN vs. USMTXMYN vs. ECAT
Often compared with WFSPX:
WFSPX vs. JLGMXWFSPX vs. VOOWFSPX vs. FSPGXWFSPX vs. FXAIXWFSPX vs. BRMKXWFSPX vs. IVVWFSPX vs. APGYX

Return for Risk

MYN vs. WFSPX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
MYN
MYN Risk / Return Rank: 2323
Overall Rank
MYN Sharpe Ratio Rank: 2020
Sharpe Ratio Rank
MYN Sortino Ratio Rank: 2222
Sortino Ratio Rank
MYN Omega Ratio Rank: 2020
Omega Ratio Rank
MYN Calmar Ratio Rank: 2424
Calmar Ratio Rank
MYN Martin Ratio Rank: 2626
Martin Ratio Rank
WFSPX
WFSPX Risk / Return Rank: 6666
Overall Rank
WFSPX Sharpe Ratio Rank: 6464
Sharpe Ratio Rank
WFSPX Sortino Ratio Rank: 5959
Sortino Ratio Rank
WFSPX Omega Ratio Rank: 6060
Omega Ratio Rank
WFSPX Calmar Ratio Rank: 6767
Calmar Ratio Rank
WFSPX Martin Ratio Rank: 7979
Martin Ratio Rank
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.

MYN vs. WFSPX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BlackRock MuniYield New York Quality Fund (MYN) and iShares S&P 500 Index Fund (WFSPX). 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.

MYNWFSPXDifference
Sharpe ratioReturn per unit of total volatility
1.31
2.37

-1.06

Sortino ratioReturn per unit of downside risk
2.00
3.24

-1.23

Omega ratioGain probability vs. loss probability

1.24

1.43

-0.19

Calmar ratioReturn relative to maximum drawdown

1.80

3.16

-1.36

Martin ratioReturn relative to average drawdown

6.26

14.75

-8.49

Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MYN vs. WFSPX - Sharpe Ratio Comparison

The current MYN Sharpe Ratio is 1.31, which is lower than the WFSPX Sharpe Ratio of 2.37. The chart below compares the historical Sharpe Ratios of MYN and WFSPX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

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Sharpe Ratios by Period

MYNWFSPXDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

1.31

2.37

-1.06

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

-0.15

0.83

-0.97

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.10

0.86

-0.76

Sharpe Ratio (All Time)

Calculated using the full available price history

0.24

0.13

+0.11

Drawdowns

MYN vs. WFSPX - Drawdown Comparison

The maximum MYN drawdown since its inception was -42.89%, smaller than the maximum WFSPX drawdown of -58.21%. Use the drawdown chart below to compare losses from any high point for MYN and WFSPX.

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Drawdown Indicators

MYNWFSPXDifference

Max Drawdown

Largest peak-to-trough decline

-42.89%

-58.21%

+15.32%

Max Drawdown (1Y)

Largest decline over 1 year

-6.40%

-8.90%

+2.50%

Max Drawdown (3Y)

Largest decline over 3 years

-16.65%

-18.74%

+2.09%

Max Drawdown (5Y)

Largest decline over 5 years

-35.99%

-24.51%

-11.48%

Max Drawdown (10Y)

Largest decline over 10 years

-35.99%

-33.74%

-2.25%

Current Drawdown

Current decline from peak

-12.37%

-0.74%

-11.63%

Average Drawdown

Average peak-to-trough decline

-10.50%

-12.77%

+2.27%

Ulcer Index

Depth and duration of drawdowns from previous peaks

1.84%

1.90%

-0.06%

Volatility

MYN vs. WFSPX - Volatility Comparison

BlackRock MuniYield New York Quality Fund (MYN) has a higher volatility of 3.32% compared to iShares S&P 500 Index Fund (WFSPX) at 2.92%. This indicates that MYN's price experiences larger fluctuations and is considered to be riskier than WFSPX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

MYNWFSPXDifference

Volatility (1M)

Calculated over the trailing 1-month period

3.32%

2.92%

+0.40%

Volatility (6M)

Calculated over the trailing 6-month period

6.80%

8.99%

-2.19%

Volatility (1Y)

Calculated over the trailing 1-year period

8.82%

11.88%

-3.06%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

11.15%

16.88%

-5.73%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

11.40%

18.02%

-6.62%

MYN vs. WFSPX - Expense Ratio Comparison

MYN has a 2.24% expense ratio, which is higher than WFSPX's 0.03% expense ratio.

Dividends

MYN vs. WFSPX - Dividend Comparison

MYN's dividend yield for the trailing twelve months is around 6.14%, more than WFSPX's 1.58% yield.

PositionTTM20252024202320222021202020192018201720162015
MYN
BlackRock MuniYield New York Quality Fund		6.14%6.20%5.47%3.88%5.37%4.39%4.16%3.90%4.32%4.98%5.44%5.62%
WFSPX
iShares S&P 500 Index Fund		1.58%1.72%1.41%1.50%2.02%1.82%1.66%1.99%2.00%1.62%2.37%2.49%

Frequently Asked Questions

MYN and WFSPX have a correlation of 0.26, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

MYN has higher volatility (3.32%) compared to WFSPX (2.92%). In terms of maximum drawdown, MYN dropped -42.89% vs WFSPX's -58.21%.

WFSPX currently has the higher Sharpe Ratio (2.37 vs 1.30), 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.

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