BGCKX vs. WFSPX

Last updated Jun 4, 2026

BGCKX (BlackRock Global Equity Market Neutral Fund Institutional Shares) and WFSPX (iShares S&P 500 Index Fund) are both mutual funds - BGCKX is a Equity Market Neutral fund actively managed by BlackRock, while WFSPX is a S&P 500 fund tracking the S&P 500 Index. BGCKX is actively managed, while WFSPX is passively managed. Over the past 10 years, BGCKX returned 8.39%/yr vs 15.54%/yr for WFSPX. At a 0.07 correlation, their price movements are largely independent. BGCKX charges 1.29%/yr vs 0.03%/yr for WFSPX.

Performance

BGCKX vs. WFSPX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in BlackRock Global Equity Market Neutral Fund Institutional Shares (BGCKX) and iShares S&P 500 Index Fund (WFSPX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BGCKX achieves a 12.50% return, which is significantly higher than WFSPX's 11.69% return. Over the past 10 years, BGCKX has underperformed WFSPX with an annualized return of 8.39%, while WFSPX has yielded a comparatively higher 15.54% annualized return.

BGCKX

• 1D: 0.43%
• 1M: 5.31%
• YTD: 12.50%
• 6M: 15.65%
• 1Y: 21.93%
• 3Y*: 21.89%
• 5Y*: 13.01%
• 10Y*: 8.39%

WFSPX

• 1D: 0.13%
• 1M: 5.80%
• YTD: 11.69%
• 6M: 11.72%
• 1Y: 28.93%
• 3Y*: 22.71%
• 5Y*: 14.24%
• 10Y*: 15.54%

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

BGCKX vs. WFSPX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BGCKX BlackRock Global Equity Market Neutral Fund Institutional Shares	12.50%	18.38%	21.55%	14.60%	1.80%	3.42%	0.33%	-0.82%	2.22%	12.83%
WFSPX iShares S&P 500 Index Fund	11.69%	17.83%	24.94%	26.25%	-18.14%	28.63%	18.43%	31.45%	-4.83%	21.27%

Correlation

The correlation between BGCKX and WFSPX is 0.35, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.35
Correlation (3Y) Calculated over the trailing 3-year period	0.22
Correlation (5Y) Calculated over the trailing 5-year period	0.14
Correlation (10Y) Calculated over the trailing 10-year period	0.07
Correlation (All Time) Calculated using the full available price history since Mar 31, 2016	0.07

Over the past year, BGCKX and WFSPX have become more correlated (0.35) than their long-term average of 0.07, meaning their price movements have been converging.

Return for Risk

BGCKX vs. WFSPX — Risk / Return Rank

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

BGCKX

BGCKX Risk / Return Rank: 91
BGCKX Sharpe Ratio Rank: 93
BGCKX Sortino Ratio Rank: 93
BGCKX Omega Ratio Rank: 87
BGCKX Calmar Ratio Rank: 96
BGCKX Martin Ratio Rank: 89

WFSPX

WFSPX Risk / Return Rank: 73
WFSPX Sharpe Ratio Rank: 75
WFSPX Sortino Ratio Rank: 67
WFSPX Omega Ratio Rank: 67
WFSPX Calmar Ratio Rank: 74
WFSPX Martin Ratio Rank: 83

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.

BGCKX vs. WFSPX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for BlackRock Global Equity Market Neutral Fund Institutional Shares (BGCKX) 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.

	BGCKX	WFSPX	Difference
Sharpe ratio: Return per unit of total volatility	3.20	2.52	+0.68
Sortino ratio: Return per unit of downside risk	4.77	3.42	+1.35
Omega ratio: Gain probability vs. loss probability	1.60	1.46	+0.14
Calmar ratio: Return relative to maximum drawdown	6.23	3.35	+2.88
Martin ratio: Return relative to average drawdown	17.51	15.65	+1.86
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BGCKX vs. WFSPX - Sharpe Ratio Comparison

The current BGCKX Sharpe Ratio is 3.20, which is comparable to the WFSPX Sharpe Ratio of 2.52. The chart below compares the historical Sharpe Ratios of BGCKX 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.

Sharpe Ratios by Period

	BGCKX	WFSPX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.20	2.52	+0.68
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	2.00	0.85	+1.16
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	1.45	0.87	+0.58
Sharpe Ratio (All Time) Calculated using the full available price history	1.39	0.13	+1.26

Drawdowns

BGCKX vs. WFSPX - Drawdown Comparison

The maximum BGCKX drawdown since its inception was -9.47%, smaller than the maximum WFSPX drawdown of -58.21%. Use the drawdown chart below to compare losses from any high point for BGCKX and WFSPX.

Drawdown Indicators

	BGCKX	WFSPX	Difference
Max Drawdown Largest peak-to-trough decline	-9.47%	-58.21%	+48.74%
Max Drawdown (1Y) Largest decline over 1 year	-3.51%	-8.90%	+5.39%
Max Drawdown (3Y) Largest decline over 3 years	-4.13%	-18.74%	+14.61%
Max Drawdown (5Y) Largest decline over 5 years	-6.13%	-24.51%	+18.38%
Max Drawdown (10Y) Largest decline over 10 years	-9.47%	-33.74%	+24.27%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-2.15%	-12.77%	+10.62%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.25%	1.90%	-0.65%

Volatility

BGCKX vs. WFSPX - Volatility Comparison

The current volatility for BlackRock Global Equity Market Neutral Fund Institutional Shares (BGCKX) is 1.96%, while iShares S&P 500 Index Fund (WFSPX) has a volatility of 2.82%. This indicates that BGCKX 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.

Volatility by Period

	BGCKX	WFSPX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.96%	2.82%	-0.86%
Volatility (6M) Calculated over the trailing 6-month period	4.45%	8.97%	-4.52%
Volatility (1Y) Calculated over the trailing 1-year period	6.85%	11.85%	-5.00%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.52%	16.88%	-10.36%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.81%	18.02%	-12.21%

BGCKX vs. WFSPX - Expense Ratio Comparison

BGCKX has a 1.29% expense ratio, which is higher than WFSPX's 0.03% expense ratio.

Dividends

BGCKX vs. WFSPX - Dividend Comparison

BGCKX's dividend yield for the trailing twelve months is around 7.96%, more than WFSPX's 1.56% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BGCKX BlackRock Global Equity Market Neutral Fund Institutional Shares	7.96%	8.96%	13.25%	7.49%	0.00%	1.22%	0.34%	6.80%	0.96%	0.00%	0.00%	0.00%
WFSPX iShares S&P 500 Index Fund	1.56%	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

Can I hold both BGCKX and WFSPX in my portfolio?

BGCKX and WFSPX have a correlation of 0.35, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BGCKX or WFSPX?

WFSPX has higher volatility (2.82%) compared to BGCKX (1.96%). In terms of maximum drawdown, BGCKX dropped -9.47% vs WFSPX's -58.21%.

Which has better risk-adjusted returns?

BGCKX currently has the higher Sharpe Ratio (3.20 vs 2.52), 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.