RYMEX vs. MCSFX

Last updated Jun 4, 2026

RYMEX (Rydex Commodities Strategy Fund) and MCSFX (MFS Commodity Strategy Fund) are both Commodities funds. Over the past 5 years, RYMEX returned 15.03%/yr vs 10.77%/yr for MCSFX. A 0.78 correlation means they provide meaningful diversification when combined. RYMEX charges 1.60%/yr vs 1.89%/yr for MCSFX.

Performance

RYMEX vs. MCSFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Rydex Commodities Strategy Fund (RYMEX) and MFS Commodity Strategy Fund (MCSFX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RYMEX achieves a 40.27% return, which is significantly higher than MCSFX's 24.44% return.

RYMEX

• 1D: 0.66%
• 1M: -5.89%
• YTD: 40.27%
• 6M: 38.90%
• 1Y: 48.61%
• 3Y*: 18.12%
• 5Y*: 15.03%
• 10Y*: 7.41%

MCSFX

• 1D: 0.45%
• 1M: -2.18%
• YTD: 24.44%
• 6M: 24.59%
• 1Y: 38.29%
• 3Y*: 16.16%
• 5Y*: 10.77%
• 10Y*: —

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

RYMEX vs. MCSFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
RYMEX Rydex Commodities Strategy Fund	40.27%	4.70%	8.24%	-6.14%	23.72%	39.03%	-22.99%	-0.02%
MCSFX MFS Commodity Strategy Fund	24.44%	17.09%	4.32%	-7.25%	12.27%	26.40%	-1.34%	-1.69%

Correlation

The correlation between RYMEX and MCSFX is 0.74, 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	0.74
Correlation (3Y) Calculated over the trailing 3-year period	0.77
Correlation (5Y) Calculated over the trailing 5-year period	0.78
Correlation (All Time) Calculated using the full available price history since Mar 21, 2019	0.78

The correlation between RYMEX and MCSFX has been stable across timeframes, ranging from 0.74 to 0.78 - a consistent structural relationship.

Return for Risk

RYMEX vs. MCSFX — Risk / Return Rank

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

RYMEX

RYMEX Risk / Return Rank: 59
RYMEX Sharpe Ratio Rank: 50
RYMEX Sortino Ratio Rank: 40
RYMEX Omega Ratio Rank: 47
RYMEX Calmar Ratio Rank: 93
RYMEX Martin Ratio Rank: 67

MCSFX

MCSFX Risk / Return Rank: 72
MCSFX Sharpe Ratio Rank: 71
MCSFX Sortino Ratio Rank: 54
MCSFX Omega Ratio Rank: 63
MCSFX Calmar Ratio Rank: 91
MCSFX Martin Ratio Rank: 80

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.

RYMEX vs. MCSFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Rydex Commodities Strategy Fund (RYMEX) and MFS Commodity Strategy Fund (MCSFX). 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.

	RYMEX	MCSFX	Difference
Sharpe ratio: Return per unit of total volatility	2.07	2.47	-0.40
Sortino ratio: Return per unit of downside risk	2.66	3.10	-0.44
Omega ratio: Gain probability vs. loss probability	1.37	1.44	-0.07
Calmar ratio: Return relative to maximum drawdown	5.12	4.74	+0.38
Martin ratio: Return relative to average drawdown	13.09	14.99	-1.90
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

RYMEX vs. MCSFX - Sharpe Ratio Comparison

The current RYMEX Sharpe Ratio is 2.07, which is comparable to the MCSFX Sharpe Ratio of 2.47. The chart below compares the historical Sharpe Ratios of RYMEX and MCSFX, 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

	RYMEX	MCSFX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.07	2.47	-0.40
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.66	0.32	+0.35
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.33	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.13	0.33	-0.46

Drawdowns

RYMEX vs. MCSFX - Drawdown Comparison

The maximum RYMEX drawdown since its inception was -91.81%, which is greater than MCSFX's maximum drawdown of -37.16%. Use the drawdown chart below to compare losses from any high point for RYMEX and MCSFX.

Drawdown Indicators

	RYMEX	MCSFX	Difference
Max Drawdown Largest peak-to-trough decline	-91.81%	-37.16%	-54.65%
Max Drawdown (1Y) Largest decline over 1 year	-9.64%	-8.19%	-1.45%
Max Drawdown (3Y) Largest decline over 3 years	-14.91%	-9.60%	-5.31%
Max Drawdown (5Y) Largest decline over 5 years	-30.45%	-37.16%	+6.71%
Max Drawdown (10Y) Largest decline over 10 years	-59.20%	—	—
Current Drawdown Current decline from peak	-65.73%	-3.03%	-62.70%
Average Drawdown Average peak-to-trough decline	-66.07%	-18.29%	-47.78%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.76%	2.59%	+1.17%

Volatility

RYMEX vs. MCSFX - Volatility Comparison

Rydex Commodities Strategy Fund (RYMEX) has a higher volatility of 8.20% compared to MFS Commodity Strategy Fund (MCSFX) at 4.74%. This indicates that RYMEX's price experiences larger fluctuations and is considered to be riskier than MCSFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RYMEX	MCSFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.20%	4.74%	+3.46%
Volatility (6M) Calculated over the trailing 6-month period	21.39%	13.69%	+7.70%
Volatility (1Y) Calculated over the trailing 1-year period	23.94%	15.87%	+8.07%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.82%	34.15%	-11.33%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.32%	29.57%	-7.25%

RYMEX vs. MCSFX - Expense Ratio Comparison

RYMEX has a 1.60% expense ratio, which is lower than MCSFX's 1.89% expense ratio.

Dividends

RYMEX vs. MCSFX - Dividend Comparison

RYMEX's dividend yield for the trailing twelve months is around 1.70%, less than MCSFX's 12.09% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
MCSFX MFS Commodity Strategy Fund	12.09%	15.05%	2.25%	1.04%	26.24%	54.80%	0.15%	0.86%	0.00%	0.00%
RYMEX Rydex Commodities Strategy Fund	1.70%	2.38%	0.00%	4.98%	17.15%	2.97%	109.50%	0.74%	44.23%	1.49%

Frequently Asked Questions

Can I hold both RYMEX and MCSFX in my portfolio?

RYMEX and MCSFX have a correlation of 0.74, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RYMEX or MCSFX?

RYMEX has higher volatility (8.20%) compared to MCSFX (4.74%). In terms of maximum drawdown, RYMEX dropped -91.81% vs MCSFX's -37.16%.

Which has better risk-adjusted returns?

MCSFX currently has the higher Sharpe Ratio (2.47 vs 2.07), 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.