RYWWX vs. SOPIX

Last updated Jun 23, 2026

RYWWX (Rydex Inverse Emerging Markets 2x Strategy Fund) and SOPIX (ProFunds Short NASDAQ-100 Fund) are both Inverse Equities funds. Over the past 10 years, RYWWX returned -27.36%/yr vs -20.89%/yr for SOPIX. A 0.69 correlation means they provide meaningful diversification when combined. RYWWX charges 1.87%/yr vs 1.78%/yr for SOPIX.

Performance

RYWWX vs. SOPIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Rydex Inverse Emerging Markets 2x Strategy Fund (RYWWX) and ProFunds Short NASDAQ-100 Fund (SOPIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RYWWX achieves a -11.34% return, which is significantly higher than SOPIX's -16.61% return. Over the past 10 years, RYWWX has underperformed SOPIX with an annualized return of -27.36%, while SOPIX has yielded a comparatively higher -20.89% annualized return.

RYWWX

• 1D: -3.17%
• 1M: 2.18%
• YTD: -11.34%
• 6M: -11.27%
• 1Y: -39.65%
• 3Y*: -30.50%
• 5Y*: -19.49%
• 10Y*: -27.36%

SOPIX

• 1D: -2.47%
• 1M: -3.30%
• YTD: -16.61%
• 6M: -15.82%
• 1Y: -27.00%
• 3Y*: -20.90%
• 5Y*: -16.29%
• 10Y*: -20.89%

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

RYWWX vs. SOPIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RYWWX Rydex Inverse Emerging Markets 2x Strategy Fund	-11.34%	-51.31%	-17.03%	-28.06%	2.55%	17.09%	-57.70%	-39.99%	23.02%	-47.98%
SOPIX ProFunds Short NASDAQ-100 Fund	-16.61%	-15.80%	-23.82%	-31.85%	34.73%	-25.69%	-42.92%	-28.29%	-3.07%	-25.24%

Correlation

The correlation between RYWWX and SOPIX is 0.67, 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	0.67
Correlation (3Y) Calculated over the trailing 3-year period	0.64
Correlation (5Y) Calculated over the trailing 5-year period	0.65
Correlation (10Y) Calculated over the trailing 10-year period	0.68
Correlation (All Time) Calculated using the full available price history since Jan 3, 2011	0.69

The correlation between RYWWX and SOPIX has been stable across timeframes, ranging from 0.64 to 0.69 - a consistent structural relationship.

Return for Risk

RYWWX vs. SOPIX — Risk / Return Rank

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

RYWWX

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

SOPIX

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

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.

RYWWX vs. SOPIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Rydex Inverse Emerging Markets 2x Strategy Fund (RYWWX) and ProFunds Short NASDAQ-100 Fund (SOPIX). 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.

	RYWWX	SOPIX	Difference
Sharpe ratio: Return per unit of total volatility	-0.90	-1.52	+0.62
Sortino ratio: Return per unit of downside risk	-1.25	-2.28	+1.03
Omega ratio: Gain probability vs. loss probability	0.86	0.76	+0.10
Calmar ratio: Return relative to maximum drawdown	-0.82	-0.98	+0.16
Martin ratio: Return relative to average drawdown	-1.14	-1.96	+0.81

RYWWX vs. SOPIX - Sharpe Ratio Comparison

The current RYWWX Sharpe Ratio is -0.90, which is higher than the SOPIX Sharpe Ratio of -1.52. The chart below compares the historical Sharpe Ratios of RYWWX and SOPIX, 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

RYWWX vs. SOPIX - Drawdown Comparison

The maximum RYWWX drawdown since its inception was -98.12%, roughly equal to the maximum SOPIX drawdown of -99.07%. Use the drawdown chart below to compare losses from any high point for RYWWX and SOPIX.

Drawdown Indicators

	RYWWX	SOPIX	Difference
Max Drawdown Largest peak-to-trough decline	-98.12%	-99.07%	+0.95%
Max Drawdown (1Y) Largest decline over 1 year	-46.32%	-26.57%	-19.75%
Max Drawdown (3Y) Largest decline over 3 years	-75.97%	-54.87%	-21.10%
Max Drawdown (5Y) Largest decline over 5 years	-84.06%	-65.00%	-19.06%
Max Drawdown (10Y) Largest decline over 10 years	-96.66%	-90.86%	-5.80%
Current Drawdown Current decline from peak	-97.87%	-99.06%	+1.19%
Average Drawdown Average peak-to-trough decline	-68.68%	-76.17%	+7.49%
Ulcer Index Depth and duration of drawdowns from previous peaks	33.45%	13.63%	+19.82%

Volatility

RYWWX vs. SOPIX - Volatility Comparison

Rydex Inverse Emerging Markets 2x Strategy Fund (RYWWX) has a higher volatility of 14.58% compared to ProFunds Short NASDAQ-100 Fund (SOPIX) at 8.39%. This indicates that RYWWX's price experiences larger fluctuations and is considered to be riskier than SOPIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RYWWX	SOPIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	14.58%	8.39%	+6.19%
Volatility (6M) Calculated over the trailing 6-month period	34.57%	14.28%	+20.29%
Volatility (1Y) Calculated over the trailing 1-year period	42.55%	17.63%	+24.92%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	48.01%	23.61%	+24.40%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	46.61%	22.61%	+24.00%

RYWWX vs. SOPIX - Expense Ratio Comparison

RYWWX has a 1.87% expense ratio, which is higher than SOPIX's 1.78% expense ratio.

Dividends

RYWWX vs. SOPIX - Dividend Comparison

RYWWX's dividend yield for the trailing twelve months is around 5.64%, more than SOPIX's 2.57% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019
RYWWX Rydex Inverse Emerging Markets 2x Strategy Fund	5.64%	5.00%	5.36%	3.28%	0.00%	0.00%	0.00%	1.06%
SOPIX ProFunds Short NASDAQ-100 Fund	2.57%	2.14%	0.00%	6.71%	0.00%	0.00%	0.00%	0.29%

Frequently Asked Questions

Can I hold both RYWWX and SOPIX in my portfolio?

RYWWX and SOPIX have a correlation of 0.67, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RYWWX or SOPIX?

RYWWX has higher volatility (14.58%) compared to SOPIX (8.39%). In terms of maximum drawdown, RYWWX dropped -98.12% vs SOPIX's -99.07%.

Which has better risk-adjusted returns?

RYWWX currently has the higher Sharpe Ratio (-0.90 vs -1.52), 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.