SOPIX vs. RYILX
SOPIX (ProFunds Short NASDAQ-100 Fund) and RYILX (Rydex Inverse High Yield Strategy Fund) are both mutual funds - SOPIX is a Inverse Equities fund managed by ProFunds, while RYILX is a Inverse Bonds fund managed by Rydex Funds. Over the past 10 years, SOPIX returned -21.08%/yr vs -2.97%/yr for RYILX. A 0.55 correlation means they provide meaningful diversification when combined. SOPIX charges 1.78%/yr vs 1.55%/yr for RYILX.
Performance
SOPIX vs. RYILX - Performance Comparison
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Returns By Period
In the year-to-date period, SOPIX achieves a -16.41% return, which is significantly lower than RYILX's 2.00% return. Over the past 10 years, SOPIX has underperformed RYILX with an annualized return of -21.08%, while RYILX has yielded a comparatively higher -2.97% annualized return.
SOPIX
- 1D
- 0.25%
- 1M
- -3.06%
- YTD
- -16.41%
- 6M
- -15.19%
- 1Y
- -26.08%
- 3Y*
- -21.30%
- 5Y*
- -15.98%
- 10Y*
- -21.08%
RYILX
- 1D
- 0.32%
- 1M
- -0.08%
- YTD
- 2.00%
- 6M
- 1.91%
- 1Y
- -0.61%
- 3Y*
- -2.14%
- 5Y*
- -0.06%
- 10Y*
- -2.97%
SOPIX vs. RYILX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
SOPIX ProFunds Short NASDAQ-100 Fund | -16.41% | -15.80% | -23.82% | -31.85% | 34.73% | -25.69% | -42.92% | -28.29% | -3.07% | -25.24% |
RYILX Rydex Inverse High Yield Strategy Fund | 2.00% | -4.36% | 0.83% | -5.00% | 8.71% | -3.58% | -5.89% | -11.11% | 1.00% | -5.87% |
Correlation
The correlation between SOPIX and RYILX is 0.59, 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 | 0.59 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.56 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.62 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.60 |
Correlation (All Time) Calculated using the full available price history since Apr 16, 2007 | 0.55 |
The correlation between SOPIX and RYILX has been stable across timeframes, ranging from 0.55 to 0.62 - a consistent structural relationship.
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Return for Risk
SOPIX vs. RYILX — Risk / Return Rank
SOPIX
RYILX
SOPIX vs. RYILX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for ProFunds Short NASDAQ-100 Fund (SOPIX) and Rydex Inverse High Yield Strategy Fund (RYILX). 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.
| SOPIX | RYILX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.31 | ||
| Sortino ratioReturn per unit of downside risk | -2.03 | ||
| Omega ratioGain probability vs. loss probability | 0.75 | 0.97 | -0.21 |
| Calmar ratioReturn relative to maximum drawdown | -1.01 | -0.27 | -0.75 |
| Martin ratioReturn relative to average drawdown | -2.07 | -0.49 | -1.58 |
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Drawdowns
SOPIX vs. RYILX - Drawdown Comparison
The maximum SOPIX drawdown since its inception was -99.07%, which is greater than RYILX's maximum drawdown of -77.21%. Use the drawdown chart below to compare losses from any high point for SOPIX and RYILX.
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Drawdown Indicators
| SOPIX | RYILX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -99.07% | -77.21% | -21.86% |
Max Drawdown (1Y)Largest decline over 1 year | -25.45% | -4.01% | -21.44% |
Max Drawdown (3Y)Largest decline over 3 years | -54.87% | -12.72% | -42.15% |
Max Drawdown (5Y)Largest decline over 5 years | -65.00% | -15.44% | -49.56% |
Max Drawdown (10Y)Largest decline over 10 years | -90.86% | -27.90% | -62.96% |
Current DrawdownCurrent decline from peak | -99.06% | -76.68% | -22.38% |
Average DrawdownAverage peak-to-trough decline | -76.17% | -58.14% | -18.03% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 13.73% | 2.45% | +11.28% |
Volatility
SOPIX vs. RYILX - Volatility Comparison
ProFunds Short NASDAQ-100 Fund (SOPIX) has a higher volatility of 8.28% compared to Rydex Inverse High Yield Strategy Fund (RYILX) at 1.77%. This indicates that SOPIX's price experiences larger fluctuations and is considered to be riskier than RYILX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| SOPIX | RYILX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 8.28% | 1.77% | +6.51% |
Volatility (6M)Calculated over the trailing 6-month period | 14.14% | 4.22% | +9.92% |
Volatility (1Y)Calculated over the trailing 1-year period | 17.66% | 5.05% | +12.61% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 23.62% | 7.56% | +16.06% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 22.62% | 8.16% | +14.46% |
SOPIX vs. RYILX - Expense Ratio Comparison
SOPIX has a 1.78% expense ratio, which is higher than RYILX's 1.55% expense ratio.
Dividends
SOPIX vs. RYILX - Dividend Comparison
SOPIX's dividend yield for the trailing twelve months is around 2.56%, while RYILX has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 |
|---|---|---|---|---|---|---|---|---|
RYILX Rydex Inverse High Yield Strategy Fund | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 2.45% | 7.79% | 0.00% |
SOPIX ProFunds Short NASDAQ-100 Fund | 2.56% | 2.14% | 0.00% | 6.71% | 0.00% | 0.00% | 0.00% | 0.29% |
Frequently Asked Questions
SOPIX and RYILX have a correlation of 0.59, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
SOPIX has higher volatility (8.28%) compared to RYILX (1.77%). In terms of maximum drawdown, SOPIX dropped -99.07% vs RYILX's -77.21%.
RYILX currently has the higher Sharpe Ratio (-0.21 vs -1.53), 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.
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