ACIW vs. SSO

Last updated Jun 4, 2026

ACIW (ACI Worldwide, Inc.) is a stock, while SSO (ProShares Ultra S&P500) is Leveraged Equities fund tracking the S&P 500. Over the past 10 years, ACIW returned 7.10%/yr vs 24.21%/yr for SSO. A 0.59 correlation means they provide meaningful diversification when combined.

Performance

ACIW vs. SSO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ACI Worldwide, Inc. (ACIW) 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, ACIW achieves a -13.07% return, which is significantly lower than SSO's 19.37% return. Over the past 10 years, ACIW has underperformed SSO with an annualized return of 7.10%, while SSO has yielded a comparatively higher 24.21% annualized return.

ACIW

• 1D: -4.92%
• 1M: -6.14%
• YTD: -13.07%
• 6M: -11.72%
• 1Y: -11.18%
• 3Y*: 20.61%
• 5Y*: 1.21%
• 10Y*: 7.10%

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)

ACIW vs. SSO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ACIW ACI Worldwide, Inc.	-13.07%	-7.90%	69.64%	33.04%	-33.72%	-9.71%	1.43%	36.94%	22.06%	24.90%
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 ACIW and SSO is 0.37, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.37
Correlation (3Y) Calculated over the trailing 3-year period	0.48
Correlation (5Y) Calculated over the trailing 5-year period	0.55
Correlation (10Y) Calculated over the trailing 10-year period	0.59
Correlation (All Time) Calculated using the full available price history since Jun 22, 2006	0.59

Over the past year, the correlation between ACIW and SSO has dropped to 0.37 - well below their long-term average of 0.59, suggesting their price drivers have been diverging.

Return for Risk

ACIW vs. SSO — Risk / Return Rank

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

ACIW

ACIW Risk / Return Rank: 25
ACIW Sharpe Ratio Rank: 26
ACIW Sortino Ratio Rank: 24
ACIW Omega Ratio Rank: 24
ACIW Calmar Ratio Rank: 27
ACIW Martin Ratio Rank: 26

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.

ACIW vs. SSO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ACI Worldwide, Inc. (ACIW) 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.

	ACIW	SSO	Difference
Sharpe ratio: Return per unit of total volatility	-0.34	2.25	-2.59
Sortino ratio: Return per unit of downside risk	-0.27	2.86	-3.13
Omega ratio: Gain probability vs. loss probability	0.97	1.38	-0.41
Calmar ratio: Return relative to maximum drawdown	-0.40	2.91	-3.31
Martin ratio: Return relative to average drawdown	-0.74	12.80	-13.55
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ACIW vs. SSO - Sharpe Ratio Comparison

The current ACIW Sharpe Ratio is -0.34, which is lower than the SSO Sharpe Ratio of 2.25. The chart below compares the historical Sharpe Ratios of ACIW 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

	ACIW	SSO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.34	2.25	-2.59
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.03	0.59	-0.55
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.20	0.68	-0.48
Sharpe Ratio (All Time) Calculated using the full available price history	0.18	0.42	-0.24

Drawdowns

ACIW vs. SSO - Drawdown Comparison

The maximum ACIW drawdown since its inception was -90.10%, which is greater than SSO's maximum drawdown of -84.67%. Use the drawdown chart below to compare losses from any high point for ACIW and SSO.

Drawdown Indicators

	ACIW	SSO	Difference
Max Drawdown Largest peak-to-trough decline	-90.10%	-84.67%	-5.43%
Max Drawdown (1Y) Largest decline over 1 year	-28.25%	-18.17%	-10.08%
Max Drawdown (3Y) Largest decline over 3 years	-35.02%	-35.21%	+0.19%
Max Drawdown (5Y) Largest decline over 5 years	-49.80%	-46.73%	-3.07%
Max Drawdown (10Y) Largest decline over 10 years	-54.18%	-59.34%	+5.16%
Current Drawdown Current decline from peak	-29.80%	-1.40%	-28.40%
Average Drawdown Average peak-to-trough decline	-33.87%	-19.57%	-14.30%
Ulcer Index Depth and duration of drawdowns from previous peaks	15.04%	4.13%	+10.91%

Volatility

ACIW vs. SSO - Volatility Comparison

ACI Worldwide, Inc. (ACIW) has a higher volatility of 14.40% compared to ProShares Ultra S&P500 (SSO) at 5.66%. This indicates that ACIW'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

	ACIW	SSO	Difference
Volatility (1M) Calculated over the trailing 1-month period	14.40%	5.66%	+8.74%
Volatility (6M) Calculated over the trailing 6-month period	26.90%	17.78%	+9.12%
Volatility (1Y) Calculated over the trailing 1-year period	32.63%	23.60%	+9.03%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	35.18%	33.65%	+1.53%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	35.67%	35.89%	-0.22%

Dividends

ACIW vs. SSO - Dividend Comparison

ACIW has not paid dividends to shareholders, while SSO's dividend yield for the trailing twelve months is around 0.62%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ACIW ACI Worldwide, Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	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 ACIW and SSO in my portfolio?

ACIW and SSO have a correlation of 0.37, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ACIW or SSO?

ACIW has higher volatility (14.40%) compared to SSO (5.66%). In terms of maximum drawdown, ACIW dropped -90.10% vs SSO's -84.67%.

Which has better risk-adjusted returns?

SSO currently has the higher Sharpe Ratio (2.25 vs -0.34), 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.