RYMEX vs. MCSIX

Last updated Apr 1, 2026

Compare and contrast key facts about Rydex Commodities Strategy Fund (RYMEX) and MFS Commodity Strategy Fund (MCSIX).

RYMEX is managed by Rydex Funds. It was launched on May 24, 2005. MCSIX is managed by MFS. It was launched on Jun 1, 2010.

Performance

RYMEX vs. MCSIX - 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 (MCSIX). The values are adjusted to include any dividend payments, if applicable.

RYMEX vs. MCSIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RYMEX Rydex Commodities Strategy Fund	40.07%	4.70%	8.24%	-6.14%	23.72%	39.03%	-64.08%	15.48%	-14.96%	4.67%
MCSIX MFS Commodity Strategy Fund	20.44%	18.47%	5.08%	-6.13%	13.40%	27.55%	-0.02%	7.79%	-12.79%	3.65%

Returns By Period

In the year-to-date period, RYMEX achieves a 40.07% return, which is significantly higher than MCSIX's 20.44% return. Over the past 10 years, RYMEX has underperformed MCSIX with an annualized return of 0.96%, while MCSIX has yielded a comparatively higher 8.18% annualized return.

RYMEX

• 1D: 1.67%
• 1M: 24.61%
• YTD: 40.07%
• 6M: 40.55%
• 1Y: 40.95%
• 3Y*: 16.42%
• 5Y*: 17.74%
• 10Y*: 0.96%

MCSIX

• 1D: 0.46%
• 1M: 7.13%
• YTD: 20.44%
• 6M: 27.27%
• 1Y: 30.89%
• 3Y*: 13.89%
• 5Y*: 13.85%
• 10Y*: 8.18%

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

RYMEX vs. MCSIX - Expense Ratio Comparison

RYMEX has a 1.60% expense ratio, which is higher than MCSIX's 0.90% expense ratio.

RYMEX

Rydex Commodities Strategy Fund

MCSIX

MFS Commodity Strategy Fund

Return for Risk

RYMEX vs. MCSIX — Risk / Return Rank

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

RYMEX

RYMEX Risk / Return Rank: 91
RYMEX Sharpe Ratio Rank: 93
RYMEX Sortino Ratio Rank: 92
RYMEX Omega Ratio Rank: 86
RYMEX Calmar Ratio Rank: 96
RYMEX Martin Ratio Rank: 88

MCSIX

MCSIX Risk / Return Rank: 90
MCSIX Sharpe Ratio Rank: 91
MCSIX Sortino Ratio Rank: 88
MCSIX Omega Ratio Rank: 86
MCSIX Calmar Ratio Rank: 95
MCSIX Martin Ratio Rank: 89

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. MCSIX - 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 (MCSIX). 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	MCSIX	Difference
Sharpe ratio Return per unit of total volatility	2.04	1.90	+0.14
Sortino ratio Return per unit of downside risk	2.70	2.41	+0.29
Omega ratio Gain probability vs. loss probability	1.36	1.35	+0.01
Calmar ratio Return relative to maximum drawdown	3.59	3.27	+0.32
Martin ratio Return relative to average drawdown	9.58	9.88	-0.31
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. MCSIX - Sharpe Ratio Comparison

The current RYMEX Sharpe Ratio is 2.04, which is comparable to the MCSIX Sharpe Ratio of 1.90. The chart below compares the historical Sharpe Ratios of RYMEX and MCSIX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	RYMEX	MCSIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.04	1.90	+0.14
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.81	0.40	+0.41
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.04	0.32	-0.28
Sharpe Ratio (All Time) Calculated using the full available price history	-0.26	0.11	-0.37

Correlation

The correlation between RYMEX and MCSIX is 0.79, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

RYMEX vs. MCSIX - Dividend Comparison

RYMEX's dividend yield for the trailing twelve months is around 1.70%, less than MCSIX's 13.32% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
RYMEX Rydex Commodities Strategy Fund	1.70%	2.38%	0.00%	4.98%	17.15%	2.97%	0.00%	0.74%	44.23%	1.49%	0.00%	0.00%
MCSIX MFS Commodity Strategy Fund	13.32%	16.04%	3.30%	2.21%	27.42%	56.01%	0.88%	1.87%	3.50%	3.14%	0.61%	0.47%

Drawdowns

RYMEX vs. MCSIX - Drawdown Comparison

The maximum RYMEX drawdown since its inception was -93.96%, which is greater than MCSIX's maximum drawdown of -64.20%. Use the drawdown chart below to compare losses from any high point for RYMEX and MCSIX.

Drawdown Indicators

	RYMEX	MCSIX	Difference
Max Drawdown Largest peak-to-trough decline	-93.96%	-64.20%	-29.76%
Max Drawdown (1Y) Largest decline over 1 year	-11.86%	-9.74%	-2.12%
Max Drawdown (5Y) Largest decline over 5 years	-30.45%	-37.61%	+7.16%
Max Drawdown (10Y) Largest decline over 10 years	-69.87%	-37.61%	-32.26%
Current Drawdown Current decline from peak	-84.04%	-1.58%	-82.46%
Average Drawdown Average peak-to-trough decline	-69.16%	-33.63%	-35.53%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.45%	3.23%	+1.22%

Volatility

RYMEX vs. MCSIX - Volatility Comparison

Rydex Commodities Strategy Fund (RYMEX) has a higher volatility of 11.73% compared to MFS Commodity Strategy Fund (MCSIX) at 6.29%. This indicates that RYMEX's price experiences larger fluctuations and is considered to be riskier than MCSIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RYMEX	MCSIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	11.73%	6.29%	+5.44%
Volatility (6M) Calculated over the trailing 6-month period	16.53%	13.48%	+3.05%
Volatility (1Y) Calculated over the trailing 1-year period	21.32%	16.72%	+4.60%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.05%	34.64%	-12.59%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	27.62%	26.03%	+1.59%