UMPIX vs. UAPIX

Last updated Jun 24, 2026

UMPIX (ProFunds UltraMid Cap Fund) and UAPIX (ProFunds UltraSmall Cap Fund) are both Leveraged Equities funds from ProFunds. Over the past 10 years, UMPIX returned 14.02%/yr vs 12.46%/yr for UAPIX. With a 0.95 correlation, they move nearly in lockstep. UMPIX charges 1.51%/yr vs 1.60%/yr for UAPIX.

Performance

UMPIX vs. UAPIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ProFunds UltraMid Cap Fund (UMPIX) and ProFunds UltraSmall Cap Fund (UAPIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, UMPIX achieves a 28.62% return, which is significantly lower than UAPIX's 41.12% return. Over the past 10 years, UMPIX has outperformed UAPIX with an annualized return of 14.02%, while UAPIX has yielded a comparatively lower 12.46% annualized return.

UMPIX

• 1D: 0.74%
• 1M: 6.90%
• YTD: 28.62%
• 6M: 23.84%
• 1Y: 46.83%
• 3Y*: 22.52%
• 5Y*: 8.78%
• 10Y*: 14.02%

UAPIX

• 1D: 1.61%
• 1M: 9.00%
• YTD: 41.12%
• 6M: 34.49%
• 1Y: 83.87%
• 3Y*: 27.77%
• 5Y*: 2.36%
• 10Y*: 12.46%

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

UMPIX vs. UAPIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
UMPIX ProFunds UltraMid Cap Fund	28.62%	3.62%	16.80%	22.37%	-32.05%	55.65%	5.21%	48.88%	-26.37%	23.77%
UAPIX ProFunds UltraSmall Cap Fund	41.12%	12.77%	10.42%	22.26%	-43.78%	23.06%	13.86%	46.81%	-26.88%	24.36%

Correlation

The correlation between UMPIX and UAPIX is 0.92, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.92
Correlation (3Y) Calculated over the trailing 3-year period	0.94
Correlation (5Y) Calculated over the trailing 5-year period	0.95
Correlation (10Y) Calculated over the trailing 10-year period	0.95
Correlation (All Time) Calculated using the full available price history since Feb 7, 2000	0.95

The correlation between UMPIX and UAPIX has been stable across timeframes, ranging from 0.92 to 0.95 - a consistent structural relationship.

Return for Risk

UMPIX vs. UAPIX — Risk / Return Rank

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

UMPIX

UMPIX Risk / Return Rank: 41
UMPIX Sharpe Ratio Rank: 34
UMPIX Sortino Ratio Rank: 33
UMPIX Omega Ratio Rank: 30
UMPIX Calmar Ratio Rank: 58
UMPIX Martin Ratio Rank: 49

UAPIX

UAPIX Risk / Return Rank: 66
UAPIX Sharpe Ratio Rank: 70
UAPIX Sortino Ratio Rank: 53
UAPIX Omega Ratio Rank: 44
UAPIX Calmar Ratio Rank: 86
UAPIX Martin Ratio Rank: 77

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.

UMPIX vs. UAPIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ProFunds UltraMid Cap Fund (UMPIX) and ProFunds UltraSmall Cap Fund (UAPIX). 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.

	UMPIX	UAPIX	Difference
Sharpe ratio: Return per unit of total volatility	1.57	2.25	-0.68
Sortino ratio: Return per unit of downside risk	2.22	2.80	-0.58
Omega ratio: Gain probability vs. loss probability	1.27	1.33	-0.07
Calmar ratio: Return relative to maximum drawdown	2.79	3.96	-1.17
Martin ratio: Return relative to average drawdown	9.63	13.47	-3.84

UMPIX vs. UAPIX - Sharpe Ratio Comparison

The current UMPIX Sharpe Ratio is 1.57, which is lower than the UAPIX Sharpe Ratio of 2.25. The chart below compares the historical Sharpe Ratios of UMPIX and UAPIX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

UMPIX vs. UAPIX - Drawdown Comparison

The maximum UMPIX drawdown since its inception was -85.51%, roughly equal to the maximum UAPIX drawdown of -88.51%. Use the drawdown chart below to compare losses from any high point for UMPIX and UAPIX.

Drawdown Indicators

	UMPIX	UAPIX	Difference
Max Drawdown Largest peak-to-trough decline	-85.51%	-88.51%	+3.00%
Max Drawdown (1Y) Largest decline over 1 year	-17.70%	-22.32%	+4.62%
Max Drawdown (3Y) Largest decline over 3 years	-44.93%	-49.86%	+4.93%
Max Drawdown (5Y) Largest decline over 5 years	-44.93%	-61.82%	+16.89%
Max Drawdown (10Y) Largest decline over 10 years	-69.51%	-72.18%	+2.67%
Current Drawdown Current decline from peak	-0.22%	0.00%	-0.22%
Average Drawdown Average peak-to-trough decline	-22.00%	-35.98%	+13.98%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.13%	6.55%	-1.42%

Volatility

UMPIX vs. UAPIX - Volatility Comparison

The current volatility for ProFunds UltraMid Cap Fund (UMPIX) is 9.05%, while ProFunds UltraSmall Cap Fund (UAPIX) has a volatility of 12.82%. This indicates that UMPIX experiences smaller price fluctuations and is considered to be less risky than UAPIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	UMPIX	UAPIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	9.05%	12.82%	-3.77%
Volatility (6M) Calculated over the trailing 6-month period	23.28%	28.58%	-5.30%
Volatility (1Y) Calculated over the trailing 1-year period	31.57%	39.46%	-7.89%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	39.60%	45.31%	-5.71%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	41.98%	46.63%	-4.65%

UMPIX vs. UAPIX - Expense Ratio Comparison

UMPIX has a 1.51% expense ratio, which is lower than UAPIX's 1.60% expense ratio.

Dividends

UMPIX vs. UAPIX - Dividend Comparison

UMPIX's dividend yield for the trailing twelve months is around 0.14%, less than UAPIX's 0.33% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
UAPIX ProFunds UltraSmall Cap Fund	0.33%	0.47%	1.06%	0.73%	0.00%	0.00%	0.00%	0.00%	0.13%	0.00%
UMPIX ProFunds UltraMid Cap Fund	0.14%	0.19%	0.96%	0.59%	0.00%	9.49%	0.00%	2.07%	0.14%	2.33%

Frequently Asked Questions

Can I hold both UMPIX and UAPIX in my portfolio?

With a correlation of 0.92, UMPIX and UAPIX 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.

Which is riskier, UMPIX or UAPIX?

UAPIX has higher volatility (12.82%) compared to UMPIX (9.05%). In terms of maximum drawdown, UMPIX dropped -85.51% vs UAPIX's -88.51%.

Which has better risk-adjusted returns?

UAPIX currently has the higher Sharpe Ratio (2.25 vs 1.57), 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.