SRTY vs. SSO

Last updated Jun 4, 2026

SRTY (ProShares UltraPro Short Russell2000) and SSO (ProShares Ultra S&P500) are both Leveraged Equities funds from ProShares - SRTY tracks the Russell 2000 Index (-300%) while SSO tracks the S&P 500. Both are passively managed. Over the past 10 years, SRTY returned -43.65%/yr vs 24.21%/yr for SSO. At a correlation of -0.84, they often move in opposite directions. SRTY charges 0.95%/yr vs 0.87%/yr for SSO.

Performance

SRTY vs. SSO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ProShares UltraPro Short Russell2000 (SRTY) and ProShares Ultra S&P500 (SSO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SRTY achieves a -40.40% return, which is significantly lower than SSO's 19.37% return. Over the past 10 years, SRTY has underperformed SSO with an annualized return of -43.65%, while SSO has yielded a comparatively higher 24.21% annualized return.

SRTY

• 1D: 4.15%
• 1M: -10.54%
• YTD: -40.40%
• 6M: -38.33%
• 1Y: -65.58%
• 3Y*: -45.16%
• 5Y*: -30.75%
• 10Y*: -43.65%

SSO

• 1D: -1.40%
• 1M: 9.75%
• YTD: 19.37%
• 6M: 18.81%
• 1Y: 52.69%
• 3Y*: 37.56%
• 5Y*: 19.62%
• 10Y*: 24.21%

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

SRTY vs. SSO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SRTY ProShares UltraPro Short Russell2000	-40.40%	-40.55%	-32.91%	-42.02%	28.99%	-51.67%	-80.61%	-53.83%	23.37%	-38.31%
SSO ProShares Ultra S&P500	19.37%	26.19%	43.48%	46.65%	-38.98%	60.57%	21.54%	63.45%	-14.60%	44.35%

Correlation

The correlation between SRTY and SSO is -0.79, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.79
Correlation (3Y) Calculated over the trailing 3-year period	-0.77
Correlation (5Y) Calculated over the trailing 5-year period	-0.82
Correlation (10Y) Calculated over the trailing 10-year period	-0.81
Correlation (All Time) Calculated using the full available price history since Feb 12, 2010	-0.84

The correlation between SRTY and SSO has been stable across timeframes, ranging from -0.84 to -0.77 - a consistent structural relationship.

SRTY vs. SSO - Sectors Allocation Comparison

Sectors	SRTY	SSO
Financial Services	86.7%	11.8%
Basic Materials	-	1.8%
Communication Services	-	11.2%
Consumer Cyclical	-	10.1%
Consumer Defensive	-	4.9%
Energy	-	3.5%
Healthcare	-	8.5%
Industrials	-	8.3%
Real Estate	-	1.9%
Technology	-	35.6%
Utilities	-	2.4%

Return for Risk

SRTY vs. SSO — Risk / Return Rank

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

SRTY

SRTY Risk / Return Rank: 1
SRTY Sharpe Ratio Rank: 1
SRTY Sortino Ratio Rank: 1
SRTY Omega Ratio Rank: 1
SRTY Calmar Ratio Rank: 1
SRTY Martin Ratio Rank: 1

SSO

SSO Risk / Return Rank: 62
SSO Sharpe Ratio Rank: 66
SSO Sortino Ratio Rank: 59
SSO Omega Ratio Rank: 60
SSO Calmar Ratio Rank: 58
SSO Martin Ratio Rank: 68

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.

SRTY vs. SSO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ProShares UltraPro Short Russell2000 (SRTY) 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.

	SRTY	SSO	Difference
Sharpe ratio Return per unit of total volatility	-1.15	2.25	-3.40
Sortino ratio Return per unit of downside risk	-2.07	2.86	-4.93
Omega ratio Gain probability vs. loss probability	0.78	1.38	-0.60
Calmar ratio Return relative to maximum drawdown	-0.97	2.91	-3.89
Martin ratio Return relative to average drawdown	-1.50	12.80	-14.31
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SRTY vs. SSO - Sharpe Ratio Comparison

The current SRTY Sharpe Ratio is -1.15, which is lower than the SSO Sharpe Ratio of 2.25. The chart below compares the historical Sharpe Ratios of SRTY and SSO, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	SRTY	SSO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-1.15	2.25	-3.40
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.46	0.59	-1.04
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	-0.64	0.68	-1.32
Sharpe Ratio (All Time) Calculated using the full available price history	-0.69	0.42	-1.11

Drawdowns

SRTY vs. SSO - Drawdown Comparison

The maximum SRTY drawdown since its inception was -100.00%, which is greater than SSO's maximum drawdown of -84.67%. Use the drawdown chart below to compare losses from any high point for SRTY and SSO.

Drawdown Indicators

	SRTY	SSO	Difference
Max Drawdown Largest peak-to-trough decline	-100.00%	-84.67%	-15.33%
Max Drawdown (1Y) Largest decline over 1 year	-67.42%	-18.17%	-49.25%
Max Drawdown (3Y) Largest decline over 3 years	-88.56%	-35.21%	-53.35%
Max Drawdown (5Y) Largest decline over 5 years	-91.18%	-46.73%	-44.45%
Max Drawdown (10Y) Largest decline over 10 years	-99.74%	-59.34%	-40.40%
Current Drawdown Current decline from peak	-99.99%	-1.40%	-98.59%
Average Drawdown Average peak-to-trough decline	-93.78%	-19.57%	-74.21%
Ulcer Index Depth and duration of drawdowns from previous peaks	43.59%	4.13%	+39.46%

Volatility

SRTY vs. SSO - Volatility Comparison

ProShares UltraPro Short Russell2000 (SRTY) has a higher volatility of 17.30% compared to ProShares Ultra S&P500 (SSO) at 5.66%. This indicates that SRTY's price experiences larger fluctuations and is considered to be riskier than SSO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SRTY	SSO	Difference
Volatility (1M) Calculated over the trailing 1-month period	17.30%	5.66%	+11.64%
Volatility (6M) Calculated over the trailing 6-month period	40.81%	17.78%	+23.03%
Volatility (1Y) Calculated over the trailing 1-year period	57.22%	23.60%	+33.62%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	67.43%	33.65%	+33.78%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	68.34%	35.89%	+32.45%

SRTY vs. SSO - Expense Ratio Comparison

SRTY has a 0.95% expense ratio, which is higher than SSO's 0.87% expense ratio.

Dividends

SRTY vs. SSO - Dividend Comparison

SRTY's dividend yield for the trailing twelve months is around 9.17%, more than SSO's 0.62% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SRTY ProShares UltraPro Short Russell2000	9.17%	6.87%	9.40%	4.93%	0.17%	0.00%	0.95%	2.13%	0.70%	0.04%	0.00%	0.00%
SSO ProShares Ultra S&P500	0.62%	0.68%	0.85%	0.18%	0.50%	0.18%	0.20%	0.50%	0.75%	0.39%	0.51%	0.63%

Frequently Asked Questions

Can I hold both SRTY and SSO in my portfolio?

SRTY and SSO have a correlation of -0.79, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SRTY or SSO?

SRTY has higher volatility (17.30%) compared to SSO (5.66%). In terms of maximum drawdown, SRTY dropped -100.00% vs SSO's -84.67%.

Which ETF is better, SRTY or SSO?

On 10-year performance, SSO leads with 24.21% vs -43.65% for SRTY. On fees, SSO is cheaper at 0.87% per year. On volatility, SSO has been the lower-risk option at 5.66%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SRTY or SSO?

Over the 10-year period, SSO has performed better with a 24.21% return vs -43.65%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SRTY or SSO?

SSO is cheaper with a 0.87% expense ratio, compared with 0.95% for SRTY.

Which ETF pays a higher dividend yield, SRTY or SSO?

SRTY has the higher dividend yield at 9.17%, compared with 0.62% for SSO.

What is the main difference between SRTY and SSO?

SRTY tracks Russell 2000 Index (-300%), while SSO tracks S&P 500. Their fees differ too: 0.95% for SRTY and 0.87% for SSO.

Which has better risk-adjusted returns?

SSO currently has the higher Sharpe Ratio (2.25 vs -1.15), 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.