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CREDX vs. WFSPX
Performance
Return for Risk
Drawdowns
Volatility
Dividends

CREDX vs. WFSPX

Last updated Jun 23, 2026

CREDX (BlackRock Credit Strategies Fund) and WFSPX (iShares S&P 500 Index Fund Class K) are both mutual funds - CREDX is a Bank Loan fund managed by BlackRock, while WFSPX is a S&P 500 fund tracking the S&P 500 Index. Over the past 5 years, CREDX returned 2.62%/yr vs 14.06%/yr for WFSPX. At a 0.38 correlation, their price movements are largely independent. CREDX charges 2.19%/yr vs 0.03%/yr for WFSPX.

Performance

CREDX vs. WFSPX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BlackRock Credit Strategies Fund (CREDX) and iShares S&P 500 Index Fund Class K (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, CREDX achieves a 1.80% return, which is significantly lower than WFSPX's 10.17% return.

CREDX

1D
0.00%
1M
0.65%
YTD
1.80%
6M
2.04%
1Y
5.23%
3Y*
7.59%
5Y*
2.62%
10Y*
—

WFSPX

1D
1.09%
1M
0.46%
YTD
10.17%
6M
9.66%
1Y
27.12%
3Y*
20.94%
5Y*
14.06%
10Y*
15.46%
*Multi-year figures are annualized to reflect compound growth (CAGR)

CREDX vs. WFSPX - Yearly Performance Comparison

2026 (YTD)20252024202320222021
CREDX
BlackRock Credit Strategies Fund		1.80%5.55%8.41%12.18%-12.08%1.03%
WFSPX
iShares S&P 500 Index Fund Class K		10.17%17.83%24.94%26.25%-18.14%28.63%

Correlation

The correlation between CREDX and WFSPX is 0.34, which is low. Their price movements are largely independent, making them effective diversification partners.

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

0.34

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

0.32

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

0.37

Correlation (All Time)
Calculated using the full available price history since Jan 4, 2021

0.38

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

BlackRock Credit Strategies Fund

iShares S&P 500 Index Fund Class K

Often compared with CREDX:
CREDX vs. VPCCREDX vs. XPTFXCREDX vs. PLFRXCREDX vs. LFRIXCREDX vs. DFRTXCREDX vs. ASFYXCREDX vs. EIFAX
Often compared with WFSPX:
WFSPX vs. JLGMXWFSPX vs. VOOWFSPX vs. FSPGXWFSPX vs. FXAIXWFSPX vs. BRMKXWFSPX vs. IVVWFSPX vs. APGYX

Return for Risk

CREDX vs. WFSPX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
CREDX
CREDX Risk / Return Rank: 6767
Overall Rank
CREDX Sharpe Ratio Rank: 3737
Sharpe Ratio Rank
CREDX Sortino Ratio Rank: 7373
Sortino Ratio Rank
CREDX Omega Ratio Rank: 7979
Omega Ratio Rank
CREDX Calmar Ratio Rank: 8787
Calmar Ratio Rank
CREDX Martin Ratio Rank: 5858
Martin Ratio Rank
WFSPX
WFSPX Risk / Return Rank: 6666
Overall Rank
WFSPX Sharpe Ratio Rank: 6464
Sharpe Ratio Rank
WFSPX Sortino Ratio Rank: 5858
Sortino Ratio Rank
WFSPX Omega Ratio Rank: 6060
Omega Ratio Rank
WFSPX Calmar Ratio Rank: 6868
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.

CREDX vs. WFSPX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BlackRock Credit Strategies Fund (CREDX) and iShares S&P 500 Index Fund Class K (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.

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.

CREDXWFSPXDifference
Sharpe ratioReturn per unit of total volatility
1.63
2.16

-0.53

Sortino ratioReturn per unit of downside risk
3.25
2.92

+0.33

Omega ratioGain probability vs. loss probability

1.47

1.39

+0.08

Calmar ratioReturn relative to maximum drawdown

3.95

3.03

+0.92

Martin ratioReturn relative to average drawdown

10.84

13.70

-2.87

CREDX vs. WFSPX - Sharpe Ratio Comparison

The current CREDX Sharpe Ratio is 1.63, which is comparable to the WFSPX Sharpe Ratio of 2.16. The chart below compares the historical Sharpe Ratios of CREDX 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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Drawdowns

CREDX vs. WFSPX - Drawdown Comparison

The maximum CREDX drawdown since its inception was -15.13%, smaller than the maximum WFSPX drawdown of -58.21%. Use the drawdown chart below to compare losses from any high point for CREDX and WFSPX.

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Drawdown Indicators

CREDXWFSPXDifference

Max Drawdown

Largest peak-to-trough decline

-15.13%

-58.21%

+43.08%

Max Drawdown (1Y)

Largest decline over 1 year

-1.33%

-8.90%

+7.57%

Max Drawdown (3Y)

Largest decline over 3 years

-2.47%

-18.74%

+16.27%

Max Drawdown (5Y)

Largest decline over 5 years

-15.13%

-24.51%

+9.38%

Max Drawdown (10Y)

Largest decline over 10 years

—

-33.74%

—

Current Drawdown

Current decline from peak

-0.25%

-1.36%

+1.11%

Average Drawdown

Average peak-to-trough decline

-3.75%

-12.76%

+9.01%

Ulcer Index

Depth and duration of drawdowns from previous peaks

0.48%

1.96%

-1.48%

Volatility

CREDX vs. WFSPX - Volatility Comparison

The current volatility for BlackRock Credit Strategies Fund (CREDX) is 0.72%, while iShares S&P 500 Index Fund Class K (WFSPX) has a volatility of 4.77%. This indicates that CREDX experiences smaller price fluctuations and is considered to be less risky 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

CREDXWFSPXDifference

Volatility (1M)

Calculated over the trailing 1-month period

0.72%

4.77%

-4.05%

Volatility (6M)

Calculated over the trailing 6-month period

2.24%

9.90%

-7.66%

Volatility (1Y)

Calculated over the trailing 1-year period

3.22%

12.46%

-9.24%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

3.42%

16.97%

-13.55%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

3.32%

18.07%

-14.75%

CREDX vs. WFSPX - Expense Ratio Comparison

CREDX has a 2.19% expense ratio, which is higher than WFSPX's 0.03% expense ratio.

Dividends

CREDX vs. WFSPX - Dividend Comparison

CREDX's dividend yield for the trailing twelve months is around 9.20%, more than WFSPX's 1.59% yield.

PositionTTM20252024202320222021202020192018201720162015
CREDX
BlackRock Credit Strategies Fund		9.20%9.16%9.78%9.98%3.41%5.69%0.00%0.00%0.00%0.00%0.00%0.00%
WFSPX
iShares S&P 500 Index Fund Class K		1.59%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

CREDX and WFSPX have a correlation of 0.34, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

WFSPX has higher volatility (4.77%) compared to CREDX (0.72%). In terms of maximum drawdown, CREDX dropped -15.13% vs WFSPX's -58.21%.

WFSPX currently has the higher Sharpe Ratio (2.16 vs 1.63), 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.

Portfolio Optimizer

Find the right allocation for CREDX and WFSPX

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