SKF vs. SSO
Compare and contrast key facts about ProShares UltraShort Financials (SKF) and ProShares Ultra S&P500 (SSO).
SKF and SSO are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. SKF is a passively managed fund by ProShares that tracks the performance of the DJ Global United States (All) / Financials -IND (-200%). It was launched on Jan 30, 2007. SSO is a passively managed fund by ProShares that tracks the performance of the S&P 500. It was launched on Jun 19, 2006. Both SKF and SSO are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.
Performance
SKF vs. SSO - Performance Comparison
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SKF vs. SSO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
SKF ProShares UltraShort Financials | 21.68% | -23.99% | -36.29% | -21.78% | 17.63% | -47.66% | -42.40% | -42.97% | 16.42% | -31.70% |
SSO ProShares Ultra S&P500 | -10.23% | 26.19% | 43.48% | 46.65% | -38.98% | 60.57% | 21.54% | 63.45% | -14.60% | 44.35% |
Returns By Period
In the year-to-date period, SKF achieves a 21.68% return, which is significantly higher than SSO's -10.23% return. Over the past 10 years, SKF has underperformed SSO with an annualized return of -26.15%, while SSO has yielded a comparatively higher 21.06% annualized return.
SKF
- 1D
- -4.38%
- 1M
- 7.51%
- YTD
- 21.68%
- 6M
- 18.48%
- 1Y
- -1.58%
- 3Y*
- -23.90%
- 5Y*
- -17.65%
- 10Y*
- -26.15%
SSO
- 1D
- 5.75%
- 1M
- -10.37%
- YTD
- -10.23%
- 6M
- -7.08%
- 1Y
- 26.35%
- 3Y*
- 28.27%
- 5Y*
- 15.34%
- 10Y*
- 21.06%
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SKF vs. SSO - Expense Ratio Comparison
SKF has a 0.95% expense ratio, which is higher than SSO's 0.87% expense ratio.
Return for Risk
SKF vs. SSO — Risk / Return Rank
SKF
SSO
SKF vs. SSO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for ProShares UltraShort Financials (SKF) and ProShares Ultra S&P500 (SSO). 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.
| SKF | SSO | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | -0.04 | 0.73 | -0.77 |
Sortino ratioReturn per unit of downside risk | 0.23 | 1.23 | -1.00 |
Omega ratioGain probability vs. loss probability | 1.03 | 1.19 | -0.16 |
Calmar ratioReturn relative to maximum drawdown | -0.11 | 1.20 | -1.31 |
Martin ratioReturn relative to average drawdown | -0.15 | 5.18 | -5.33 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| SKF | SSO | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | -0.04 | 0.73 | -0.77 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | -0.49 | 0.46 | -0.95 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | -0.64 | 0.59 | -1.23 |
Sharpe Ratio (All Time)Calculated using the full available price history | -0.50 | 0.38 | -0.88 |
Correlation
The correlation between SKF and SSO is -0.84. This indicates that the assets' prices tend to move in opposite directions. Negative correlation can be particularly beneficial for diversification and risk management, as one asset may offset the losses of the other during market fluctuations.
Dividends
SKF vs. SSO - Dividend Comparison
SKF's dividend yield for the trailing twelve months is around 3.89%, more than SSO's 0.82% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
SKF ProShares UltraShort Financials | 3.89% | 5.61% | 7.94% | 3.93% | 0.03% | 0.00% | 0.11% | 1.29% | 0.06% | 0.00% | 0.00% | 0.00% |
SSO ProShares Ultra S&P500 | 0.82% | 0.68% | 0.85% | 0.18% | 0.50% | 0.18% | 0.20% | 0.50% | 0.75% | 0.39% | 0.51% | 0.63% |
Drawdowns
SKF vs. SSO - Drawdown Comparison
The maximum SKF drawdown since its inception was -99.96%, which is greater than SSO's maximum drawdown of -84.67%. Use the drawdown chart below to compare losses from any high point for SKF and SSO.
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Drawdown Indicators
| SKF | SSO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -99.96% | -84.67% | -15.29% |
Max Drawdown (1Y)Largest decline over 1 year | -39.47% | -23.17% | -16.30% |
Max Drawdown (5Y)Largest decline over 5 years | -72.40% | -46.73% | -25.67% |
Max Drawdown (10Y)Largest decline over 10 years | -96.51% | -59.34% | -37.17% |
Current DrawdownCurrent decline from peak | -99.95% | -13.46% | -86.49% |
Average DrawdownAverage peak-to-trough decline | -89.16% | -19.72% | -69.44% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 29.24% | 5.38% | +23.86% |
Volatility
SKF vs. SSO - Volatility Comparison
The current volatility for ProShares UltraShort Financials (SKF) is 9.64%, while ProShares Ultra S&P500 (SSO) has a volatility of 10.60%. This indicates that SKF experiences smaller price fluctuations and is considered to be less risky than SSO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| SKF | SSO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 9.64% | 10.60% | -0.96% |
Volatility (6M)Calculated over the trailing 6-month period | 22.75% | 18.95% | +3.80% |
Volatility (1Y)Calculated over the trailing 1-year period | 38.69% | 36.45% | +2.24% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 36.06% | 33.66% | +2.40% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 40.94% | 35.86% | +5.08% |