SOPIX vs. RYWWX

Last updated Jun 24, 2026

SOPIX (ProFunds Short NASDAQ-100 Fund) and RYWWX (Rydex Inverse Emerging Markets 2x Strategy Fund) are both Inverse Equities funds. Over the past 10 years, SOPIX returned -21.08%/yr vs -27.73%/yr for RYWWX. A 0.68 correlation means they provide meaningful diversification when combined. SOPIX charges 1.78%/yr vs 1.87%/yr for RYWWX.

Performance

SOPIX vs. RYWWX - Performance Comparison

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

Returns By Period

In the year-to-date period, SOPIX achieves a -16.41% return, which is significantly lower than RYWWX's -12.51% return. Over the past 10 years, SOPIX has outperformed RYWWX with an annualized return of -21.08%, while RYWWX has yielded a comparatively lower -27.73% annualized return.

SOPIX

• 1D: 0.25%
• 1M: -3.06%
• YTD: -16.41%
• 6M: -15.19%
• 1Y: -26.08%
• 3Y*: -21.30%
• 5Y*: -15.98%
• 10Y*: -21.08%

RYWWX

• 1D: -1.32%
• 1M: 0.83%
• YTD: -12.51%
• 6M: -12.04%
• 1Y: -39.75%
• 3Y*: -32.65%
• 5Y*: -19.39%
• 10Y*: -27.73%

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

SOPIX vs. RYWWX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SOPIX ProFunds Short NASDAQ-100 Fund	-16.41%	-15.80%	-23.82%	-31.85%	34.73%	-25.69%	-42.92%	-28.29%	-3.07%	-25.24%
RYWWX Rydex Inverse Emerging Markets 2x Strategy Fund	-12.51%	-51.31%	-17.03%	-28.06%	2.55%	17.09%	-57.70%	-39.99%	23.02%	-47.98%

Correlation

The correlation between SOPIX and RYWWX 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	0.68

The correlation between SOPIX and RYWWX has been stable across timeframes, ranging from 0.64 to 0.68 - a consistent structural relationship.

Return for Risk

SOPIX vs. RYWWX — Risk / Return Rank

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

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

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

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.

SOPIX vs. RYWWX - Risk-Adjusted Trends Comparison

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

	SOPIX	RYWWX	Difference
Sharpe ratio: Return per unit of total volatility	-1.53	-0.96	-0.57
Sortino ratio: Return per unit of downside risk	-2.30	-1.37	-0.93
Omega ratio: Gain probability vs. loss probability	0.75	0.84	-0.09
Calmar ratio: Return relative to maximum drawdown	-1.01	-0.88	-0.14
Martin ratio: Return relative to average drawdown	-2.07	-1.23	-0.84

SOPIX vs. RYWWX - Sharpe Ratio Comparison

The current SOPIX Sharpe Ratio is -1.53, which is lower than the RYWWX Sharpe Ratio of -0.96. The chart below compares the historical Sharpe Ratios of SOPIX and RYWWX, 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

SOPIX vs. RYWWX - Drawdown Comparison

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

Drawdown Indicators

	SOPIX	RYWWX	Difference
Max Drawdown Largest peak-to-trough decline	-99.07%	-98.12%	-0.95%
Max Drawdown (1Y) Largest decline over 1 year	-25.45%	-44.07%	+18.62%
Max Drawdown (3Y) Largest decline over 3 years	-54.87%	-75.97%	+21.10%
Max Drawdown (5Y) Largest decline over 5 years	-65.00%	-84.06%	+19.06%
Max Drawdown (10Y) Largest decline over 10 years	-90.86%	-96.66%	+5.80%
Current Drawdown Current decline from peak	-99.06%	-97.89%	-1.17%
Average Drawdown Average peak-to-trough decline	-76.17%	-68.68%	-7.49%
Ulcer Index Depth and duration of drawdowns from previous peaks	13.73%	33.55%	-19.82%

Volatility

SOPIX vs. RYWWX - Volatility Comparison

The current volatility for ProFunds Short NASDAQ-100 Fund (SOPIX) is 8.28%, while Rydex Inverse Emerging Markets 2x Strategy Fund (RYWWX) has a volatility of 14.51%. This indicates that SOPIX experiences smaller price fluctuations and is considered to be less risky than RYWWX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SOPIX	RYWWX	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.28%	14.51%	-6.23%
Volatility (6M) Calculated over the trailing 6-month period	14.14%	34.49%	-20.35%
Volatility (1Y) Calculated over the trailing 1-year period	17.66%	42.55%	-24.89%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.62%	48.04%	-24.42%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.62%	46.60%	-23.98%

SOPIX vs. RYWWX - Expense Ratio Comparison

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

Dividends

SOPIX vs. RYWWX - Dividend Comparison

SOPIX's dividend yield for the trailing twelve months is around 2.56%, less than RYWWX's 5.72% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019
RYWWX Rydex Inverse Emerging Markets 2x Strategy Fund	5.72%	5.00%	5.36%	3.28%	0.00%	0.00%	0.00%	1.06%
SOPIX ProFunds Short NASDAQ-100 Fund	2.56%	2.14%	0.00%	6.71%	0.00%	0.00%	0.00%	0.29%

Frequently Asked Questions

Can I hold both SOPIX and RYWWX in my portfolio?

SOPIX and RYWWX 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, SOPIX or RYWWX?

RYWWX has higher volatility (14.51%) compared to SOPIX (8.28%). In terms of maximum drawdown, SOPIX dropped -99.07% vs RYWWX's -98.12%.

Which has better risk-adjusted returns?

RYWWX currently has the higher Sharpe Ratio (-0.96 vs -1.53), 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.