AFBIX vs. ULPIX

Last updated Jun 4, 2026

AFBIX (Access Flex Bear High Yield ProFund) and ULPIX (ProFunds UltraBull Fund) are both mutual funds - AFBIX is a Inverse Bonds fund managed by ProFunds, while ULPIX is a Leveraged Equities fund managed by ProFunds. Over the past 10 years, AFBIX returned -4.42%/yr vs 22.96%/yr for ULPIX. At a correlation of -0.64, they often move in opposite directions. AFBIX charges 1.78%/yr vs 1.46%/yr for ULPIX.

Performance

AFBIX vs. ULPIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Access Flex Bear High Yield ProFund (AFBIX) and ProFunds UltraBull Fund (ULPIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, AFBIX achieves a -1.02% return, which is significantly lower than ULPIX's 20.77% return. Over the past 10 years, AFBIX has underperformed ULPIX with an annualized return of -4.42%, while ULPIX has yielded a comparatively higher 22.96% annualized return.

AFBIX

• 1D: -0.07%
• 1M: -0.66%
• YTD: -1.02%
• 6M: -1.27%
• 1Y: -4.16%
• 3Y*: -4.55%
• 5Y*: -2.12%
• 10Y*: -4.42%

ULPIX

• 1D: 0.25%
• 1M: 11.31%
• YTD: 20.77%
• 6M: 20.35%
• 1Y: 54.19%
• 3Y*: 35.90%
• 5Y*: 18.94%
• 10Y*: 22.96%

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

AFBIX vs. ULPIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
AFBIX Access Flex Bear High Yield ProFund	-1.02%	-5.24%	-3.07%	-6.30%	8.01%	-4.55%	-6.63%	-12.62%	-0.42%	-4.51%
ULPIX ProFunds UltraBull Fund	20.77%	25.47%	38.03%	45.59%	-39.16%	59.28%	19.12%	62.17%	-15.02%	42.77%

Correlation

The correlation between AFBIX and ULPIX is -0.75, 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	-0.75
Correlation (3Y) Calculated over the trailing 3-year period	-0.68
Correlation (5Y) Calculated over the trailing 5-year period	-0.70
Correlation (10Y) Calculated over the trailing 10-year period	-0.68
Correlation (All Time) Calculated using the full available price history since Jan 4, 2006	-0.64

The correlation between AFBIX and ULPIX shifts across timeframes, from -0.75 (1 year) to -0.64 (all time), reflecting how their relationship changes across market environments.

Return for Risk

AFBIX vs. ULPIX — Risk / Return Rank

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

AFBIX

AFBIX Risk / Return Rank: 0
AFBIX Sharpe Ratio Rank: 0
AFBIX Sortino Ratio Rank: 0
AFBIX Omega Ratio Rank: 1
AFBIX Calmar Ratio Rank: 0
AFBIX Martin Ratio Rank: 0

ULPIX

ULPIX Risk / Return Rank: 60
ULPIX Sharpe Ratio Rank: 66
ULPIX Sortino Ratio Rank: 50
ULPIX Omega Ratio Rank: 52
ULPIX Calmar Ratio Rank: 64
ULPIX Martin Ratio Rank: 70

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.

AFBIX vs. ULPIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Access Flex Bear High Yield ProFund (AFBIX) and ProFunds UltraBull Fund (ULPIX). 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.

	AFBIX	ULPIX	Difference
Sharpe ratio: Return per unit of total volatility	-1.14	2.37	-3.51
Sortino ratio: Return per unit of downside risk	-1.53	2.99	-4.52
Omega ratio: Gain probability vs. loss probability	0.82	1.40	-0.57
Calmar ratio: Return relative to maximum drawdown	-1.00	3.07	-4.07
Martin ratio: Return relative to average drawdown	-1.51	13.50	-15.00
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

AFBIX vs. ULPIX - Sharpe Ratio Comparison

The current AFBIX Sharpe Ratio is -1.14, which is lower than the ULPIX Sharpe Ratio of 2.37. The chart below compares the historical Sharpe Ratios of AFBIX and ULPIX, 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

	AFBIX	ULPIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-1.14	2.37	-3.51
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.29	0.56	-0.85
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	-0.56	0.65	-1.21
Sharpe Ratio (All Time) Calculated using the full available price history	-0.95	0.25	-1.20

Drawdowns

AFBIX vs. ULPIX - Drawdown Comparison

The maximum AFBIX drawdown since its inception was -82.03%, smaller than the maximum ULPIX drawdown of -89.68%. Use the drawdown chart below to compare losses from any high point for AFBIX and ULPIX.

Drawdown Indicators

	AFBIX	ULPIX	Difference
Max Drawdown Largest peak-to-trough decline	-82.03%	-89.68%	+7.65%
Max Drawdown (1Y) Largest decline over 1 year	-4.36%	-18.30%	+13.94%
Max Drawdown (3Y) Largest decline over 3 years	-17.40%	-36.59%	+19.19%
Max Drawdown (5Y) Largest decline over 5 years	-21.36%	-46.92%	+25.56%
Max Drawdown (10Y) Largest decline over 10 years	-36.43%	-59.41%	+22.98%
Current Drawdown Current decline from peak	-82.03%	0.00%	-82.03%
Average Drawdown Average peak-to-trough decline	-57.78%	-33.84%	-23.94%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.88%	4.16%	-1.28%

Volatility

AFBIX vs. ULPIX - Volatility Comparison

The current volatility for Access Flex Bear High Yield ProFund (AFBIX) is 1.22%, while ProFunds UltraBull Fund (ULPIX) has a volatility of 5.62%. This indicates that AFBIX experiences smaller price fluctuations and is considered to be less risky than ULPIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AFBIX	ULPIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.22%	5.62%	-4.40%
Volatility (6M) Calculated over the trailing 6-month period	3.01%	17.92%	-14.91%
Volatility (1Y) Calculated over the trailing 1-year period	3.81%	23.69%	-19.88%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	7.29%	33.91%	-26.62%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	7.91%	35.45%	-27.54%

AFBIX vs. ULPIX - Expense Ratio Comparison

AFBIX has a 1.78% expense ratio, which is higher than ULPIX's 1.46% expense ratio.

Dividends

AFBIX vs. ULPIX - Dividend Comparison

AFBIX has not paid dividends to shareholders, while ULPIX's dividend yield for the trailing twelve months is around 7.54%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
AFBIX Access Flex Bear High Yield ProFund	0.00%	0.00%	0.00%	0.00%	0.03%	0.00%	0.00%	0.00%	0.00%
ULPIX ProFunds UltraBull Fund	7.54%	9.11%	0.00%	0.02%	10.36%	5.62%	12.74%	0.42%	0.58%

Frequently Asked Questions

Can I hold both AFBIX and ULPIX in my portfolio?

AFBIX and ULPIX have a correlation of -0.75, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, AFBIX or ULPIX?

ULPIX has higher volatility (5.62%) compared to AFBIX (1.22%). In terms of maximum drawdown, AFBIX dropped -82.03% vs ULPIX's -89.68%.

Which has better risk-adjusted returns?

ULPIX currently has the higher Sharpe Ratio (2.37 vs -1.14), 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.