RYJSX vs. UAPIX

Last updated Jun 24, 2026

RYJSX (Rydex Japan 2x Strategy Fund) and UAPIX (ProFunds UltraSmall Cap Fund) are both Leveraged Equities funds. Over the past 10 years, RYJSX returned 17.56%/yr vs 12.46%/yr for UAPIX. A 0.63 correlation means they provide meaningful diversification when combined. RYJSX charges 1.49%/yr vs 1.60%/yr for UAPIX.

Performance

RYJSX vs. UAPIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Rydex Japan 2x Strategy Fund (RYJSX) 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, RYJSX achieves a 82.16% return, which is significantly higher than UAPIX's 41.12% return. Over the past 10 years, RYJSX has outperformed UAPIX with an annualized return of 17.56%, while UAPIX has yielded a comparatively lower 12.46% annualized return.

RYJSX

• 1D: 2.81%
• 1M: 26.94%
• YTD: 82.16%
• 6M: 80.10%
• 1Y: 156.62%
• 3Y*: 42.47%
• 5Y*: 14.71%
• 10Y*: 17.56%

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)

RYJSX vs. UAPIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RYJSX Rydex Japan 2x Strategy Fund	82.16%	50.73%	1.56%	34.36%	-42.66%	-14.17%	40.76%	38.61%	-21.92%	50.94%
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 RYJSX and UAPIX is 0.63, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.63
Correlation (3Y) Calculated over the trailing 3-year period	0.62
Correlation (5Y) Calculated over the trailing 5-year period	0.64
Correlation (10Y) Calculated over the trailing 10-year period	0.62
Correlation (All Time) Calculated using the full available price history since Jan 2, 2009	0.63

The correlation between RYJSX and UAPIX has been stable across timeframes, ranging from 0.62 to 0.64 - a consistent structural relationship.

Return for Risk

RYJSX vs. UAPIX — Risk / Return Rank

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

RYJSX

RYJSX Risk / Return Rank: 84
RYJSX Sharpe Ratio Rank: 94
RYJSX Sortino Ratio Rank: 77
RYJSX Omega Ratio Rank: 67
RYJSX Calmar Ratio Rank: 94
RYJSX Martin Ratio Rank: 89

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.

RYJSX vs. UAPIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Rydex Japan 2x Strategy Fund (RYJSX) 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.

	RYJSX	UAPIX	Difference
Sharpe ratio: Return per unit of total volatility	3.03	2.25	+0.78
Sortino ratio: Return per unit of downside risk	3.36	2.80	+0.56
Omega ratio: Gain probability vs. loss probability	1.41	1.33	+0.08
Calmar ratio: Return relative to maximum drawdown	5.24	3.96	+1.28
Martin ratio: Return relative to average drawdown	16.19	13.47	+2.72

RYJSX vs. UAPIX - Sharpe Ratio Comparison

The current RYJSX Sharpe Ratio is 3.03, which is higher than the UAPIX Sharpe Ratio of 2.25. The chart below compares the historical Sharpe Ratios of RYJSX 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

RYJSX vs. UAPIX - Drawdown Comparison

The maximum RYJSX drawdown since its inception was -63.60%, smaller than the maximum UAPIX drawdown of -88.51%. Use the drawdown chart below to compare losses from any high point for RYJSX and UAPIX.

Drawdown Indicators

	RYJSX	UAPIX	Difference
Max Drawdown Largest peak-to-trough decline	-63.60%	-88.51%	+24.91%
Max Drawdown (1Y) Largest decline over 1 year	-30.86%	-22.32%	-8.54%
Max Drawdown (3Y) Largest decline over 3 years	-40.80%	-49.86%	+9.06%
Max Drawdown (5Y) Largest decline over 5 years	-61.07%	-61.82%	+0.75%
Max Drawdown (10Y) Largest decline over 10 years	-63.60%	-72.18%	+8.58%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-20.83%	-35.98%	+15.15%
Ulcer Index Depth and duration of drawdowns from previous peaks	9.96%	6.55%	+3.41%

Volatility

RYJSX vs. UAPIX - Volatility Comparison

Rydex Japan 2x Strategy Fund (RYJSX) has a higher volatility of 20.97% compared to ProFunds UltraSmall Cap Fund (UAPIX) at 12.82%. This indicates that RYJSX's price experiences larger fluctuations and is considered to be riskier than UAPIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RYJSX	UAPIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	20.97%	12.82%	+8.15%
Volatility (6M) Calculated over the trailing 6-month period	43.42%	28.58%	+14.84%
Volatility (1Y) Calculated over the trailing 1-year period	53.47%	39.46%	+14.01%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	41.45%	45.31%	-3.86%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	38.11%	46.63%	-8.52%

RYJSX vs. UAPIX - Expense Ratio Comparison

RYJSX has a 1.49% expense ratio, which is lower than UAPIX's 1.60% expense ratio.

Dividends

RYJSX vs. UAPIX - Dividend Comparison

RYJSX's dividend yield for the trailing twelve months is around 0.61%, more than UAPIX's 0.33% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
RYJSX Rydex Japan 2x Strategy Fund	0.61%	1.11%	4.50%	5.86%	0.00%	0.00%	0.52%	0.85%	0.48%	3.24%
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%

Frequently Asked Questions

Can I hold both RYJSX and UAPIX in my portfolio?

RYJSX and UAPIX have a correlation of 0.63, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RYJSX or UAPIX?

RYJSX has higher volatility (20.97%) compared to UAPIX (12.82%). In terms of maximum drawdown, RYJSX dropped -63.60% vs UAPIX's -88.51%.

Which has better risk-adjusted returns?

RYJSX currently has the higher Sharpe Ratio (3.03 vs 2.25), 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.