SPXU vs. ^SP100

Last updated Apr 2, 2026

Compare and contrast key facts about ProShares UltraPro Short S&P500 (SPXU) and S&P 100 Index (^SP100).

SPXU is a passively managed fund by ProShares that tracks the performance of the S&P 500 Index (-300%). It was launched on Jun 25, 2009.

Performance

SPXU vs. ^SP100 - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ProShares UltraPro Short S&P500 (SPXU) and S&P 100 Index (^SP100). The values are adjusted to include any dividend payments, if applicable.

SPXU vs. ^SP100 - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SPXU ProShares UltraPro Short S&P500	12.37%	-41.73%	-43.31%	-46.02%	36.05%	-57.94%	-70.39%	-56.27%	3.97%	-44.23%
^SP100 S&P 100 Index	-6.49%	18.76%	29.25%	30.83%	-22.12%	27.55%	19.30%	29.47%	-5.86%	19.34%

Returns By Period

In the year-to-date period, SPXU achieves a 12.37% return, which is significantly higher than ^SP100's -6.49% return. Over the past 10 years, SPXU has underperformed ^SP100 with an annualized return of -39.88%, while ^SP100 has yielded a comparatively higher 13.32% annualized return.

SPXU

• 1D: -2.31%
• 1M: 13.37%
• YTD: 12.37%
• 6M: 6.54%
• 1Y: -42.28%
• 3Y*: -37.11%
• 5Y*: -31.74%
• 10Y*: -39.88%

^SP100

• 1D: 0.73%
• 1M: -4.22%
• YTD: -6.49%
• 6M: -4.06%
• 1Y: 17.96%
• 3Y*: 19.64%
• 5Y*: 11.98%
• 10Y*: 13.32%

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

Return for Risk

SPXU vs. ^SP100 — Risk / Return Rank

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

SPXU

SPXU Risk / Return Rank: 3
SPXU Sharpe Ratio Rank: 1
SPXU Sortino Ratio Rank: 2
SPXU Omega Ratio Rank: 1
SPXU Calmar Ratio Rank: 2
SPXU Martin Ratio Rank: 6

^SP100

^SP100 Risk / Return Rank: 66
^SP100 Sharpe Ratio Rank: 63
^SP100 Sortino Ratio Rank: 65
^SP100 Omega Ratio Rank: 69
^SP100 Calmar Ratio Rank: 65
^SP100 Martin Ratio Rank: 69

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.

SPXU vs. ^SP100 - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ProShares UltraPro Short S&P500 (SPXU) and S&P 100 Index (^SP100). 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.

	SPXU	^SP100	Difference
Sharpe ratio Return per unit of total volatility	-0.78	0.93	-1.71
Sortino ratio Return per unit of downside risk	-0.98	1.46	-2.44
Omega ratio Gain probability vs. loss probability	0.86	1.22	-0.36
Calmar ratio Return relative to maximum drawdown	-0.66	1.53	-2.18
Martin ratio Return relative to average drawdown	-0.77	5.98	-6.74
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SPXU vs. ^SP100 - Sharpe Ratio Comparison

The current SPXU Sharpe Ratio is -0.78, which is lower than the ^SP100 Sharpe Ratio of 0.93. The chart below compares the historical Sharpe Ratios of SPXU and ^SP100, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	SPXU	^SP100	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.78	0.93	-1.71
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.63	0.68	-1.31
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	-0.75	0.72	-1.47
Sharpe Ratio (All Time) Calculated using the full available price history	-0.82	0.53	-1.35

Correlation

The correlation between SPXU and ^SP100 is -0.98. 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.

Drawdowns

SPXU vs. ^SP100 - Drawdown Comparison

The maximum SPXU drawdown since its inception was -99.99%, which is greater than ^SP100's maximum drawdown of -61.31%. Use the drawdown chart below to compare losses from any high point for SPXU and ^SP100.

Drawdown Indicators

	SPXU	^SP100	Difference
Max Drawdown Largest peak-to-trough decline	-99.99%	-61.31%	-38.68%
Max Drawdown (1Y) Largest decline over 1 year	-65.13%	-12.08%	-53.05%
Max Drawdown (5Y) Largest decline over 5 years	-87.51%	-27.23%	-60.28%
Max Drawdown (10Y) Largest decline over 10 years	-99.51%	-31.53%	-67.98%
Current Drawdown Current decline from peak	-99.99%	-7.80%	-92.19%
Average Drawdown Average peak-to-trough decline	-93.26%	-12.71%	-80.55%
Ulcer Index Depth and duration of drawdowns from previous peaks	55.82%	3.09%	+52.73%

Volatility

SPXU vs. ^SP100 - Volatility Comparison

ProShares UltraPro Short S&P500 (SPXU) has a higher volatility of 16.20% compared to S&P 100 Index (^SP100) at 5.63%. This indicates that SPXU's price experiences larger fluctuations and is considered to be riskier than ^SP100 based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SPXU	^SP100	Difference
Volatility (1M) Calculated over the trailing 1-month period	16.20%	5.63%	+10.57%
Volatility (6M) Calculated over the trailing 6-month period	28.27%	10.07%	+18.20%
Volatility (1Y) Calculated over the trailing 1-year period	54.50%	19.34%	+35.16%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	50.34%	17.74%	+32.60%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	53.33%	18.44%	+34.89%