SOPIX vs. RYAIX
Compare and contrast key facts about ProFunds Short NASDAQ-100 Fund (SOPIX) and Rydex Inverse NASDAQ-100 Strategy Fund (RYAIX).
SOPIX is managed by ProFunds. It was launched on Apr 30, 2002. RYAIX is managed by Rydex Funds. It was launched on Sep 2, 1998.
Performance
SOPIX vs. RYAIX - Performance Comparison
Loading graphics...
SOPIX vs. RYAIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
SOPIX ProFunds Short NASDAQ-100 Fund | 10.52% | -15.80% | -23.82% | -31.85% | 34.73% | -25.69% | -42.92% | -28.29% | -3.07% | -25.24% |
RYAIX Rydex Inverse NASDAQ-100 Strategy Fund | 10.70% | -15.63% | -15.64% | -31.71% | 35.92% | -24.88% | -40.98% | -27.65% | -2.63% | -24.47% |
Returns By Period
The year-to-date returns for both investments are quite close, with SOPIX having a 10.52% return and RYAIX slightly higher at 10.70%. Over the past 10 years, SOPIX has underperformed RYAIX with an annualized return of -18.48%, while RYAIX has yielded a comparatively higher -16.89% annualized return.
SOPIX
- 1D
- 0.80%
- 1M
- 8.80%
- YTD
- 10.52%
- 6M
- 8.77%
- 1Y
- -14.65%
- 3Y*
- -16.68%
- 5Y*
- -12.90%
- 10Y*
- -18.48%
RYAIX
- 1D
- 0.78%
- 1M
- 8.79%
- YTD
- 10.70%
- 6M
- 9.08%
- 1Y
- -14.68%
- 3Y*
- -13.58%
- 5Y*
- -10.67%
- 10Y*
- -16.89%
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
SOPIX vs. RYAIX - Expense Ratio Comparison
SOPIX has a 1.78% expense ratio, which is higher than RYAIX's 1.55% expense ratio.
Return for Risk
SOPIX vs. RYAIX — Risk / Return Rank
SOPIX
RYAIX
SOPIX vs. RYAIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for ProFunds Short NASDAQ-100 Fund (SOPIX) and Rydex Inverse NASDAQ-100 Strategy Fund (RYAIX). 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.
| SOPIX | RYAIX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | -0.59 | -0.65 | +0.06 |
Sortino ratioReturn per unit of downside risk | -0.69 | -0.79 | +0.10 |
Omega ratioGain probability vs. loss probability | 0.90 | 0.89 | +0.01 |
Calmar ratioReturn relative to maximum drawdown | -0.36 | -0.36 | 0.00 |
Martin ratioReturn relative to average drawdown | -0.45 | -0.45 | 0.00 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading graphics...
Sharpe Ratios by Period
| SOPIX | RYAIX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | -0.59 | -0.65 | +0.06 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | -0.55 | -0.47 | -0.08 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | -0.83 | -0.75 | -0.08 |
Sharpe Ratio (All Time)Calculated using the full available price history | -0.77 | -0.16 | -0.61 |
Correlation
The correlation between SOPIX and RYAIX is 0.99, 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
SOPIX vs. RYAIX - Dividend Comparison
SOPIX's dividend yield for the trailing twelve months is around 1.94%, less than RYAIX's 2.01% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
SOPIX ProFunds Short NASDAQ-100 Fund | 1.94% | 2.14% | 0.00% | 6.71% | 0.00% | 0.00% | 0.00% | 0.29% |
RYAIX Rydex Inverse NASDAQ-100 Strategy Fund | 2.01% | 2.23% | 5.67% | 4.81% | 0.00% | 0.00% | 0.09% | 0.72% |
Drawdowns
SOPIX vs. RYAIX - Drawdown Comparison
The maximum SOPIX drawdown since its inception was -98.92%, roughly equal to the maximum RYAIX drawdown of -98.75%. Use the drawdown chart below to compare losses from any high point for SOPIX and RYAIX.
Loading graphics...
Drawdown Indicators
| SOPIX | RYAIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -98.92% | -98.75% | -0.17% |
Max Drawdown (1Y)Largest decline over 1 year | -33.92% | -33.93% | +0.01% |
Max Drawdown (5Y)Largest decline over 5 years | -59.43% | -54.73% | -4.70% |
Max Drawdown (10Y)Largest decline over 10 years | -89.41% | -87.23% | -2.18% |
Current DrawdownCurrent decline from peak | -98.76% | -98.56% | -0.20% |
Average DrawdownAverage peak-to-trough decline | -75.96% | -73.13% | -2.83% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 27.20% | 27.19% | +0.01% |
Volatility
SOPIX vs. RYAIX - Volatility Comparison
ProFunds Short NASDAQ-100 Fund (SOPIX) and Rydex Inverse NASDAQ-100 Strategy Fund (RYAIX) have volatilities of 5.28% and 5.34%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
Loading graphics...
Volatility by Period
| SOPIX | RYAIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.28% | 5.34% | -0.06% |
Volatility (6M)Calculated over the trailing 6-month period | 12.29% | 12.33% | -0.04% |
Volatility (1Y)Calculated over the trailing 1-year period | 24.87% | 22.52% | +2.35% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 23.36% | 22.82% | +0.54% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 22.42% | 22.58% | -0.16% |