RYMKX vs. RYMDX

Last updated Jun 3, 2026

RYMKX (Rydex Russell 2000 1.5x Strategy Fund) and RYMDX (Rydex Mid-Cap 1.5x Strategy Fund) are both Leveraged Equities funds from Rydex Funds. Over the past 10 years, RYMKX returned 11.18%/yr vs 11.75%/yr for RYMDX. With a 0.96 correlation, they move nearly in lockstep. RYMKX charges 1.69%/yr vs 1.65%/yr for RYMDX.

Performance

RYMKX vs. RYMDX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Rydex Russell 2000 1.5x Strategy Fund (RYMKX) and Rydex Mid-Cap 1.5x Strategy Fund (RYMDX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RYMKX achieves a 24.55% return, which is significantly higher than RYMDX's 18.08% return. Over the past 10 years, RYMKX has underperformed RYMDX with an annualized return of 11.18%, while RYMDX has yielded a comparatively higher 11.75% annualized return.

RYMKX

• 1D: -0.70%
• 1M: 4.66%
• YTD: 24.55%
• 6M: 25.48%
• 1Y: 60.31%
• 3Y*: 21.33%
• 5Y*: 3.26%
• 10Y*: 11.18%

RYMDX

• 1D: -0.13%
• 1M: 3.27%
• YTD: 18.08%
• 6M: 19.26%
• 1Y: 34.88%
• 3Y*: 18.24%
• 5Y*: 6.67%
• 10Y*: 11.75%

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

RYMKX vs. RYMDX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RYMKX Rydex Russell 2000 1.5x Strategy Fund	24.55%	12.79%	11.00%	20.06%	-33.16%	16.62%	20.94%	35.38%	-19.62%	20.07%
RYMDX Rydex Mid-Cap 1.5x Strategy Fund	18.08%	5.29%	15.46%	19.11%	-23.31%	34.58%	9.87%	36.13%	-19.37%	22.67%

Correlation

The correlation between RYMKX and RYMDX is 0.92, 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	0.92
Correlation (3Y) Calculated over the trailing 3-year period	0.94
Correlation (5Y) Calculated over the trailing 5-year period	0.95
Correlation (10Y) Calculated over the trailing 10-year period	0.95
Correlation (All Time) Calculated using the full available price history since Jan 3, 2002	0.96

The correlation between RYMKX and RYMDX has been stable across timeframes, ranging from 0.92 to 0.96 - a consistent structural relationship.

Return for Risk

RYMKX vs. RYMDX — Risk / Return Rank

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

RYMKX

RYMKX Risk / Return Rank: 55
RYMKX Sharpe Ratio Rank: 52
RYMKX Sortino Ratio Rank: 45
RYMKX Omega Ratio Rank: 39
RYMKX Calmar Ratio Rank: 78
RYMKX Martin Ratio Rank: 62

RYMDX

RYMDX Risk / Return Rank: 32
RYMDX Sharpe Ratio Rank: 27
RYMDX Sortino Ratio Rank: 27
RYMDX Omega Ratio Rank: 25
RYMDX Calmar Ratio Rank: 42
RYMDX Martin Ratio Rank: 41

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.

RYMKX vs. RYMDX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Rydex Russell 2000 1.5x Strategy Fund (RYMKX) and Rydex Mid-Cap 1.5x Strategy Fund (RYMDX). 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.

	RYMKX	RYMDX	Difference
Sharpe ratio Return per unit of total volatility	2.13	1.49	+0.64
Sortino ratio Return per unit of downside risk	2.82	2.16	+0.66
Omega ratio Gain probability vs. loss probability	1.33	1.26	+0.07
Calmar ratio Return relative to maximum drawdown	3.52	2.50	+1.03
Martin ratio Return relative to average drawdown	12.24	8.83	+3.41
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

RYMKX vs. RYMDX - Sharpe Ratio Comparison

The current RYMKX Sharpe Ratio is 2.13, which is higher than the RYMDX Sharpe Ratio of 1.49. The chart below compares the historical Sharpe Ratios of RYMKX and RYMDX, 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

	RYMKX	RYMDX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.13	1.49	+0.64
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.07	0.21	-0.14
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.27	0.36	-0.09
Sharpe Ratio (All Time) Calculated using the full available price history	0.21	0.30	-0.10

Drawdowns

RYMKX vs. RYMDX - Drawdown Comparison

The maximum RYMKX drawdown since its inception was -77.57%, roughly equal to the maximum RYMDX drawdown of -75.43%. Use the drawdown chart below to compare losses from any high point for RYMKX and RYMDX.

Drawdown Indicators

	RYMKX	RYMDX	Difference
Max Drawdown Largest peak-to-trough decline	-77.57%	-75.43%	-2.14%
Max Drawdown (1Y) Largest decline over 1 year	-16.96%	-13.50%	-3.46%
Max Drawdown (3Y) Largest decline over 3 years	-39.72%	-35.20%	-4.52%
Max Drawdown (5Y) Largest decline over 5 years	-63.65%	-42.77%	-20.88%
Max Drawdown (10Y) Largest decline over 10 years	-63.65%	-58.09%	-5.56%
Current Drawdown Current decline from peak	-22.25%	-0.47%	-21.78%
Average Drawdown Average peak-to-trough decline	-23.36%	-15.45%	-7.91%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.89%	3.82%	+1.07%

Volatility

RYMKX vs. RYMDX - Volatility Comparison

Rydex Russell 2000 1.5x Strategy Fund (RYMKX) has a higher volatility of 8.31% compared to Rydex Mid-Cap 1.5x Strategy Fund (RYMDX) at 6.58%. This indicates that RYMKX's price experiences larger fluctuations and is considered to be riskier than RYMDX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RYMKX	RYMDX	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.31%	6.58%	+1.73%
Volatility (6M) Calculated over the trailing 6-month period	20.30%	17.01%	+3.29%
Volatility (1Y) Calculated over the trailing 1-year period	28.70%	23.27%	+5.43%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	45.43%	31.49%	+13.94%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	41.17%	32.61%	+8.56%

RYMKX vs. RYMDX - Expense Ratio Comparison

RYMKX has a 1.69% expense ratio, which is higher than RYMDX's 1.65% expense ratio.

Dividends

RYMKX vs. RYMDX - Dividend Comparison

RYMKX's dividend yield for the trailing twelve months is around 0.67%, more than RYMDX's 0.62% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
RYMDX Rydex Mid-Cap 1.5x Strategy Fund	0.62%	0.73%	0.72%	0.35%	0.00%	17.47%	0.38%	0.18%	0.56%	0.53%	0.19%	0.67%
RYMKX Rydex Russell 2000 1.5x Strategy Fund	0.67%	0.84%	1.30%	0.21%	0.00%	57.14%	0.29%	0.00%	0.00%	0.00%	9.87%	8.26%

Frequently Asked Questions

Can I hold both RYMKX and RYMDX in my portfolio?

With a correlation of 0.92, RYMKX and RYMDX 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, RYMKX or RYMDX?

RYMKX has higher volatility (8.31%) compared to RYMDX (6.58%). In terms of maximum drawdown, RYMKX dropped -77.57% vs RYMDX's -75.43%.

Which has better risk-adjusted returns?

RYMKX currently has the higher Sharpe Ratio (2.13 vs 1.49), 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.