USPIX vs. SOPIX
USPIX (ProFunds UltraShort NASDAQ-100 Fund) and SOPIX (ProFunds Short NASDAQ-100 Fund) are both Inverse Equities funds from ProFunds. Over the past 10 years, USPIX returned -38.59%/yr vs -19.73%/yr for SOPIX. Their 0.99 correlation means they have historically moved very closely together. USPIX charges 1.68%/yr vs 1.78%/yr for SOPIX.
Performance
USPIX vs. SOPIX - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, USPIX achieves a -25.41% return, which is significantly lower than SOPIX's -11.92% return. Over the past 10 years, USPIX has underperformed SOPIX with an annualized return of -38.59%, while SOPIX has yielded a comparatively higher -19.73% annualized return.
USPIX
- 1D
- -3.42%
- 1M
- 3.40%
- 6M
- -25.13%
- YTD
- -25.41%
- 1Y
- -36.49%
- 3Y*
- -36.95%
- 5Y*
- -30.06%
- 10Y*
- -38.59%
- ALL TIME*
- -35.29%
SOPIX
- 1D
- -1.70%
- 1M
- 1.93%
- 6M
- -11.90%
- YTD
- -11.92%
- 1Y
- -17.91%
- 3Y*
- -19.40%
- 5Y*
- -14.28%
- 10Y*
- -19.73%
- ALL TIME*
- -17.54%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $0.00 | $0.00 | $0.00 |
USPIX vs. SOPIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
USPIX ProFunds UltraShort NASDAQ-100 Fund | -25.41% | -35.26% | -38.20% | -57.06% | 61.80% | -46.20% | -70.91% | -50.15% | -9.56% | -44.56% |
SOPIX ProFunds Short NASDAQ-100 Fund | -11.92% | -15.80% | -23.82% | -31.85% | 34.73% | -25.69% | -42.92% | -28.29% | -3.07% | -25.24% |
Correlation
The correlation between USPIX and SOPIX is 1.00 - they have historically moved very closely together. At this level, their price movements offset little of one another.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 1.00 |
Correlation (3Y) Balances recent behavior with more history. | 1.00 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 1.00 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.99 |
Correlation (All Time) Calculated using the full available price history since Jan 2, 2003 | 0.99 |
The correlation between USPIX and SOPIX has been stable across timeframes, ranging from 0.99 to 1.00 - a consistent structural relationship.
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
USPIX vs. SOPIX — Risk / Return Rank
USPIX
SOPIX
USPIX vs. SOPIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for ProFunds UltraShort NASDAQ-100 Fund (USPIX) and ProFunds Short NASDAQ-100 Fund (SOPIX). 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.
| USPIX | SOPIX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | 0.00 | ||
| Sortino ratioReturn per unit of downside risk | -0.07 | ||
| Omega ratioGain probability vs. loss probability | 0.84 | 0.85 | -0.01 |
| Calmar ratioReturn relative to maximum drawdown | -0.87 | -0.78 | -0.09 |
| Martin ratioReturn relative to average drawdown | -1.63 | -1.54 | -0.09 |
Loading charts...
Drawdowns
USPIX vs. SOPIX - Drawdown Comparison
The maximum USPIX drawdown since its inception was -100.00%, roughly equal to the maximum SOPIX drawdown of -99.07%. Use the drawdown chart below to compare losses from any high point for USPIX and SOPIX.
Loading charts...
Drawdown Indicators
| USPIX | SOPIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -100.00% | -99.07% | -0.93% |
Max Drawdown (1Y)Largest decline over 1 year | -44.62% | -24.87% | -19.75% |
Max Drawdown (3Y)Largest decline over 3 years | -80.96% | -54.87% | -26.09% |
Max Drawdown (5Y)Largest decline over 5 years | -89.53% | -65.00% | -24.53% |
Max Drawdown (10Y)Largest decline over 10 years | -99.34% | -89.76% | -9.58% |
Current DrawdownCurrent decline from peak | -100.00% | -99.01% | -0.99% |
Average DrawdownAverage peak-to-trough decline | -96.45% | -76.28% | -20.17% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 24.77% | 12.91% | +11.86% |
Volatility
USPIX vs. SOPIX - Volatility Comparison
ProFunds UltraShort NASDAQ-100 Fund (USPIX) has a higher volatility of 13.93% compared to ProFunds Short NASDAQ-100 Fund (SOPIX) at 6.95%. This indicates that USPIX's price experiences larger fluctuations and is considered to be riskier than SOPIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| USPIX | SOPIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 13.93% | 6.95% | +6.98% |
Volatility (6M)Calculated over the trailing 6-month period | 31.96% | 15.96% | +16.00% |
Volatility (1Y)Calculated over the trailing 1-year period | 38.64% | 19.29% | +19.35% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 46.19% | 23.87% | +22.32% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 44.78% | 22.70% | +22.08% |
USPIX vs. SOPIX - Expense Ratio Comparison
USPIX has a 1.68% expense ratio, which is lower than SOPIX's 1.78% expense ratio.
Dividends
USPIX vs. SOPIX - Dividend Comparison
USPIX's dividend yield for the trailing twelve months is around 3.63%, more than SOPIX's 2.43% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 |
|---|---|---|---|---|---|---|---|---|
SOPIX ProFunds Short NASDAQ-100 Fund | 2.43% | 2.14% | 0.00% | 6.71% | 0.00% | 0.00% | 0.00% | 0.29% |
USPIX ProFunds UltraShort NASDAQ-100 Fund | 3.63% | 2.71% | 0.00% | 5.92% | 0.00% | 0.00% | 0.07% | 0.36% |
Frequently Asked Questions
With a correlation of 1.00, USPIX and SOPIX 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.
USPIX has higher volatility (13.93%) compared to SOPIX (6.95%). In terms of maximum drawdown, USPIX dropped -100.00% vs SOPIX's -99.07%.
USPIX currently has the higher Sharpe Ratio (-1.01 vs -1.01), 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.
Find the right allocation for USPIX and SOPIX
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer