RYMDX vs. SMPIX

Last updated Jun 23, 2026

RYMDX (Rydex Mid-Cap 1.5x Strategy Fund) and SMPIX (ProFunds Semiconductor UltraSector Fund Investor Class) are both Leveraged Equities funds. Over the past 10 years, RYMDX returned 12.11%/yr vs 20.05%/yr for SMPIX. A 0.69 correlation means they provide meaningful diversification when combined. RYMDX charges 1.65%/yr vs 1.52%/yr for SMPIX.

Performance

RYMDX vs. SMPIX - Performance Comparison

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

Returns By Period

In the year-to-date period, RYMDX achieves a 21.26% return, which is significantly lower than SMPIX's 78.25% return. Over the past 10 years, RYMDX has underperformed SMPIX with an annualized return of 12.11%, while SMPIX has yielded a comparatively higher 20.05% annualized return.

RYMDX

• 1D: 1.63%
• 1M: 4.75%
• YTD: 21.26%
• 6M: 17.28%
• 1Y: 36.49%
• 3Y*: 17.57%
• 5Y*: 8.66%
• 10Y*: 12.11%

SMPIX

• 1D: 7.49%
• 1M: 11.82%
• YTD: 78.25%
• 6M: 80.13%
• 1Y: 170.24%
• 3Y*: -8.37%
• 5Y*: 2.23%
• 10Y*: 20.05%

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

RYMDX vs. SMPIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RYMDX Rydex Mid-Cap 1.5x Strategy Fund	21.26%	5.29%	15.46%	19.11%	-23.31%	34.58%	9.87%	36.13%	-19.37%	22.67%
SMPIX ProFunds Semiconductor UltraSector Fund Investor Class	78.25%	56.35%	-77.32%	155.37%	-54.31%	80.17%	60.77%	77.97%	-17.56%	42.78%

Correlation

The correlation between RYMDX and SMPIX is 0.45, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.45
Correlation (3Y) Calculated over the trailing 3-year period	0.49
Correlation (5Y) Calculated over the trailing 5-year period	0.60
Correlation (10Y) Calculated over the trailing 10-year period	0.61
Correlation (All Time) Calculated using the full available price history since Jan 2, 2002	0.69

Over the past year, the correlation between RYMDX and SMPIX has dropped to 0.45 - well below their long-term average of 0.69, suggesting their price drivers have been diverging.

Return for Risk

RYMDX vs. SMPIX — Risk / Return Rank

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

RYMDX

RYMDX Risk / Return Rank: 40
RYMDX Sharpe Ratio Rank: 33
RYMDX Sortino Ratio Rank: 33
RYMDX Omega Ratio Rank: 30
RYMDX Calmar Ratio Rank: 55
RYMDX Martin Ratio Rank: 49

SMPIX

SMPIX Risk / Return Rank: 88
SMPIX Sharpe Ratio Rank: 97
SMPIX Sortino Ratio Rank: 75
SMPIX Omega Ratio Rank: 75
SMPIX Calmar Ratio Rank: 98
SMPIX Martin Ratio Rank: 96

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.

RYMDX vs. SMPIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Rydex Mid-Cap 1.5x Strategy Fund (RYMDX) and ProFunds Semiconductor UltraSector Fund Investor Class (SMPIX). 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.

	RYMDX	SMPIX	Difference
Sharpe ratio: Return per unit of total volatility	1.55	3.30	-1.75
Sortino ratio: Return per unit of downside risk	2.23	3.30	-1.08
Omega ratio: Gain probability vs. loss probability	1.27	1.45	-0.18
Calmar ratio: Return relative to maximum drawdown	2.72	7.39	-4.66
Martin ratio: Return relative to average drawdown	9.60	21.33	-11.73

RYMDX vs. SMPIX - Sharpe Ratio Comparison

The current RYMDX Sharpe Ratio is 1.55, which is lower than the SMPIX Sharpe Ratio of 3.30. The chart below compares the historical Sharpe Ratios of RYMDX and SMPIX, 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

RYMDX vs. SMPIX - Drawdown Comparison

The maximum RYMDX drawdown since its inception was -75.43%, smaller than the maximum SMPIX drawdown of -94.52%. Use the drawdown chart below to compare losses from any high point for RYMDX and SMPIX.

Drawdown Indicators

	RYMDX	SMPIX	Difference
Max Drawdown Largest peak-to-trough decline	-75.43%	-94.52%	+19.09%
Max Drawdown (1Y) Largest decline over 1 year	-13.50%	-22.72%	+9.22%
Max Drawdown (3Y) Largest decline over 3 years	-35.20%	-94.52%	+59.32%
Max Drawdown (5Y) Largest decline over 5 years	-42.77%	-94.52%	+51.75%
Max Drawdown (10Y) Largest decline over 10 years	-58.09%	-94.52%	+36.43%
Current Drawdown Current decline from peak	-0.70%	-73.09%	+72.39%
Average Drawdown Average peak-to-trough decline	-15.41%	-57.64%	+42.23%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.82%	7.86%	-4.04%

Volatility

RYMDX vs. SMPIX - Volatility Comparison

The current volatility for Rydex Mid-Cap 1.5x Strategy Fund (RYMDX) is 7.27%, while ProFunds Semiconductor UltraSector Fund Investor Class (SMPIX) has a volatility of 23.93%. This indicates that RYMDX experiences smaller price fluctuations and is considered to be less risky than SMPIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RYMDX	SMPIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.27%	23.93%	-16.66%
Volatility (6M) Calculated over the trailing 6-month period	17.60%	40.58%	-22.98%
Volatility (1Y) Calculated over the trailing 1-year period	23.71%	50.92%	-27.21%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	31.54%	71.44%	-39.90%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	32.64%	59.62%	-26.98%

RYMDX vs. SMPIX - Expense Ratio Comparison

RYMDX has a 1.65% expense ratio, which is higher than SMPIX's 1.52% expense ratio.

Dividends

RYMDX vs. SMPIX - Dividend Comparison

RYMDX's dividend yield for the trailing twelve months is around 0.60%, less than SMPIX's 7.30% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
RYMDX Rydex Mid-Cap 1.5x Strategy Fund	0.60%	0.73%	0.72%	0.35%	0.00%	17.47%	0.38%	0.18%	0.56%	0.53%	0.19%	0.67%
SMPIX ProFunds Semiconductor UltraSector Fund Investor Class	7.30%	13.02%	0.16%	0.00%	0.00%	6.57%	0.00%	2.26%	40.03%	0.11%	0.45%	0.68%

Frequently Asked Questions

Can I hold both RYMDX and SMPIX in my portfolio?

RYMDX and SMPIX have a correlation of 0.45, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RYMDX or SMPIX?

SMPIX has higher volatility (23.93%) compared to RYMDX (7.27%). In terms of maximum drawdown, RYMDX dropped -75.43% vs SMPIX's -94.52%.

Which has better risk-adjusted returns?

SMPIX currently has the higher Sharpe Ratio (3.30 vs 1.55), 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.