GSPKX vs. MRGAX

Last updated Jun 24, 2026

GSPKX (Goldman Sachs U.S. Equity Dividend and Premium Fund) and MRGAX (MFS Core Equity Fund) are both Large Cap Blend Equities funds. Over the past 10 years, GSPKX returned 13.27%/yr vs 14.36%/yr for MRGAX. With a 0.96 correlation, they move nearly in lockstep. GSPKX charges 0.71%/yr vs 0.93%/yr for MRGAX.

Performance

GSPKX vs. MRGAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Goldman Sachs U.S. Equity Dividend and Premium Fund (GSPKX) and MFS Core Equity Fund (MRGAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, GSPKX achieves a 9.85% return, which is significantly higher than MRGAX's 6.15% return. Over the past 10 years, GSPKX has underperformed MRGAX with an annualized return of 13.27%, while MRGAX has yielded a comparatively higher 14.36% annualized return.

GSPKX

• 1D: -0.25%
• 1M: 0.86%
• YTD: 9.85%
• 6M: 9.24%
• 1Y: 23.12%
• 3Y*: 20.27%
• 5Y*: 12.84%
• 10Y*: 13.27%

MRGAX

• 1D: -0.73%
• 1M: -0.15%
• YTD: 6.15%
• 6M: 5.22%
• 1Y: 16.94%
• 3Y*: 16.69%
• 5Y*: 9.96%
• 10Y*: 14.36%

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

GSPKX vs. MRGAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
GSPKX Goldman Sachs U.S. Equity Dividend and Premium Fund	9.85%	13.60%	29.55%	21.39%	-15.20%	22.79%	14.15%	25.11%	-6.29%	15.32%
MRGAX MFS Core Equity Fund	6.15%	12.33%	20.01%	22.88%	-17.24%	25.26%	18.56%	34.66%	-4.12%	23.79%

Correlation

The correlation between GSPKX and MRGAX is 0.95, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.95
Correlation (3Y) Calculated over the trailing 3-year period	0.95
Correlation (5Y) Calculated over the trailing 5-year period	0.96
Correlation (10Y) Calculated over the trailing 10-year period	0.96
Correlation (All Time) Calculated using the full available price history since Jan 3, 2006	0.96

The correlation between GSPKX and MRGAX has been stable across timeframes, ranging from 0.95 to 0.96 - a consistent structural relationship.

Return for Risk

GSPKX vs. MRGAX — Risk / Return Rank

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

GSPKX

GSPKX Risk / Return Rank: 77
GSPKX Sharpe Ratio Rank: 78
GSPKX Sortino Ratio Rank: 73
GSPKX Omega Ratio Rank: 76
GSPKX Calmar Ratio Rank: 70
GSPKX Martin Ratio Rank: 87

MRGAX

MRGAX Risk / Return Rank: 31
MRGAX Sharpe Ratio Rank: 30
MRGAX Sortino Ratio Rank: 28
MRGAX Omega Ratio Rank: 29
MRGAX Calmar Ratio Rank: 29
MRGAX Martin Ratio Rank: 37

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.

GSPKX vs. MRGAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Goldman Sachs U.S. Equity Dividend and Premium Fund (GSPKX) and MFS Core Equity Fund (MRGAX). 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.

	GSPKX	MRGAX	Difference
Sharpe ratio: Return per unit of total volatility	2.37	1.45	+0.92
Sortino ratio: Return per unit of downside risk	3.26	2.03	+1.22
Omega ratio: Gain probability vs. loss probability	1.45	1.26	+0.19
Calmar ratio: Return relative to maximum drawdown	3.09	1.89	+1.20
Martin ratio: Return relative to average drawdown	15.41	7.80	+7.61

GSPKX vs. MRGAX - Sharpe Ratio Comparison

The current GSPKX Sharpe Ratio is 2.37, which is higher than the MRGAX Sharpe Ratio of 1.45. The chart below compares the historical Sharpe Ratios of GSPKX and MRGAX, 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

GSPKX vs. MRGAX - Drawdown Comparison

The maximum GSPKX drawdown since its inception was -51.90%, roughly equal to the maximum MRGAX drawdown of -54.04%. Use the drawdown chart below to compare losses from any high point for GSPKX and MRGAX.

Drawdown Indicators

	GSPKX	MRGAX	Difference
Max Drawdown Largest peak-to-trough decline	-51.90%	-54.04%	+2.14%
Max Drawdown (1Y) Largest decline over 1 year	-7.83%	-9.53%	+1.70%
Max Drawdown (3Y) Largest decline over 3 years	-20.51%	-19.22%	-1.29%
Max Drawdown (5Y) Largest decline over 5 years	-22.34%	-23.08%	+0.74%
Max Drawdown (10Y) Largest decline over 10 years	-32.70%	-33.41%	+0.71%
Current Drawdown Current decline from peak	-0.55%	-2.03%	+1.48%
Average Drawdown Average peak-to-trough decline	-5.98%	-8.26%	+2.28%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.56%	2.31%	-0.75%

Volatility

GSPKX vs. MRGAX - Volatility Comparison

The current volatility for Goldman Sachs U.S. Equity Dividend and Premium Fund (GSPKX) is 3.47%, while MFS Core Equity Fund (MRGAX) has a volatility of 4.46%. This indicates that GSPKX experiences smaller price fluctuations and is considered to be less risky than MRGAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	GSPKX	MRGAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.47%	4.46%	-0.99%
Volatility (6M) Calculated over the trailing 6-month period	8.34%	9.84%	-1.50%
Volatility (1Y) Calculated over the trailing 1-year period	10.24%	12.48%	-2.24%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.05%	16.86%	-0.81%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.92%	17.83%	-0.91%

GSPKX vs. MRGAX - Expense Ratio Comparison

GSPKX has a 0.71% expense ratio, which is lower than MRGAX's 0.93% expense ratio.

Dividends

GSPKX vs. MRGAX - Dividend Comparison

GSPKX's dividend yield for the trailing twelve months is around 6.02%, less than MRGAX's 12.81% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
GSPKX Goldman Sachs U.S. Equity Dividend and Premium Fund	6.02%	6.32%	12.77%	6.48%	6.33%	6.01%	7.19%	6.86%	7.95%	6.13%	5.63%	6.29%
MRGAX MFS Core Equity Fund	12.81%	13.60%	8.21%	2.54%	3.83%	7.28%	1.54%	3.20%	11.09%	6.27%	3.65%	11.02%

Frequently Asked Questions

Can I hold both GSPKX and MRGAX in my portfolio?

With a correlation of 0.95, GSPKX and MRGAX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, GSPKX or MRGAX?

MRGAX has higher volatility (4.46%) compared to GSPKX (3.47%). In terms of maximum drawdown, GSPKX dropped -51.90% vs MRGAX's -54.04%.

Which has better risk-adjusted returns?

GSPKX currently has the higher Sharpe Ratio (2.37 vs 1.45), 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.