RYURX vs. PSTIX

Last updated Aug 1, 2026

RYURX (Rydex Inverse S&P 500 Strategy Fund) and PSTIX (PIMCO StocksPLUS Short Fund) are both Inverse Equities funds. Over the past 10 years, RYURX returned -12.47%/yr vs -9.92%/yr for PSTIX. Their 0.96 correlation means they have historically moved very closely together. RYURX charges 1.49%/yr vs 0.64%/yr for PSTIX.

Performance

RYURX vs. PSTIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Rydex Inverse S&P 500 Strategy Fund (RYURX) and PIMCO StocksPLUS Short Fund (PSTIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RYURX achieves a -6.06% return, which is significantly lower than PSTIX's -5.26% return. Over the past 10 years, RYURX has underperformed PSTIX with an annualized return of -12.47%, while PSTIX has yielded a comparatively higher -9.92% annualized return.

RYURX

• 1D: -1.56%
• 1M: 0.93%
• 6M: -5.19%
• YTD: -6.06%
• 1Y: -12.58%
• 3Y*: -10.49%
• 5Y*: -7.99%
• 10Y*: -12.47%
• ALL TIME*: -10.18%

PSTIX

• 1D: -1.59%
• 1M: 0.65%
• 6M: -4.53%
• YTD: -5.26%
• 1Y: -10.18%
• 3Y*: -8.25%
• 5Y*: -5.88%
• 10Y*: -9.92%
• ALL TIME*: -7.70%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
PSTIX PIMCO StocksPLUS Short Fund	$0.00	$0.00	$0.00
RYURX Rydex Inverse S&P 500 Strategy Fund	$0.00	$0.00	$0.00

RYURX vs. PSTIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RYURX Rydex Inverse S&P 500 Strategy Fund	-6.06%	-11.41%	-13.04%	-14.56%	17.56%	-24.19%	-24.90%	-22.65%	4.33%	-17.38%
PSTIX PIMCO StocksPLUS Short Fund	-5.26%	-8.24%	-11.28%	-11.01%	17.41%	-21.89%	-20.83%	-20.27%	5.21%	-14.04%

Correlation

The correlation between RYURX and PSTIX is 0.99 - they have historically moved very closely together. At this level, their price movements offset little of one another.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.99
Correlation (3Y) Balances recent behavior with more history.	0.98
Correlation (5Y) Shows whether the relationship held over a longer period.	0.99
Correlation (10Y) Provides a long-term view across more market conditions.	0.98
Correlation (All Time) Calculated using the full available price history since Jan 2, 2004	0.96

The correlation between RYURX and PSTIX has been stable across timeframes, ranging from 0.96 to 0.99 - a consistent structural relationship.

Return for Risk

RYURX vs. PSTIX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

RYURX

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

PSTIX

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

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

RYURX vs. PSTIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Rydex Inverse S&P 500 Strategy Fund (RYURX) and PIMCO StocksPLUS Short Fund (PSTIX). 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.

	RYURX	PSTIX	Difference
Sharpe ratio: Return per unit of total volatility	-0.85	-0.65	-0.20
Sortino ratio: Return per unit of downside risk	-1.18	-0.88	-0.30
Omega ratio: Gain probability vs. loss probability	0.87	0.90	-0.03
Calmar ratio: Return relative to maximum drawdown	-0.67	-0.54	-0.14
Martin ratio: Return relative to average drawdown	-1.21	-1.01	-0.19

RYURX vs. PSTIX - Sharpe Ratio Comparison

The current RYURX Sharpe Ratio is -0.85, which is lower than the PSTIX Sharpe Ratio of -0.65. The chart below compares the historical Sharpe Ratios of RYURX and PSTIX, 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

RYURX vs. PSTIX - Drawdown Comparison

The maximum RYURX drawdown since its inception was -96.72%, which is greater than PSTIX's maximum drawdown of -90.52%. Use the drawdown chart below to compare losses from any high point for RYURX and PSTIX.

Drawdown Indicators

	RYURX	PSTIX	Difference
Max Drawdown Largest peak-to-trough decline	-96.72%	-90.52%	-6.20%
Max Drawdown (1Y) Largest decline over 1 year	-16.08%	-15.05%	-1.03%
Max Drawdown (3Y) Largest decline over 3 years	-38.48%	-33.92%	-4.56%
Max Drawdown (5Y) Largest decline over 5 years	-44.10%	-37.53%	-6.57%
Max Drawdown (10Y) Largest decline over 10 years	-75.17%	-67.42%	-7.75%
Current Drawdown Current decline from peak	-96.63%	-90.23%	-6.40%
Average Drawdown Average peak-to-trough decline	-69.05%	-57.40%	-11.65%
Ulcer Index Depth and duration of drawdowns from previous peaks	8.97%	7.99%	+0.98%

Volatility

RYURX vs. PSTIX - Volatility Comparison

Rydex Inverse S&P 500 Strategy Fund (RYURX) has a higher volatility of 3.38% compared to PIMCO StocksPLUS Short Fund (PSTIX) at 3.19%. This indicates that RYURX's price experiences larger fluctuations and is considered to be riskier than PSTIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RYURX	PSTIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.38%	3.19%	+0.19%
Volatility (6M) Calculated over the trailing 6-month period	10.05%	9.63%	+0.42%
Volatility (1Y) Calculated over the trailing 1-year period	12.78%	12.47%	+0.31%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.11%	16.56%	+0.55%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.11%	17.50%	+0.61%

RYURX vs. PSTIX - Expense Ratio Comparison

RYURX has a 1.49% expense ratio, which is higher than PSTIX's 0.64% expense ratio.

Dividends

RYURX vs. PSTIX - Dividend Comparison

RYURX's dividend yield for the trailing twelve months is around 4.06%, more than PSTIX's 0.89% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PSTIX PIMCO StocksPLUS Short Fund	0.89%	0.00%	0.00%	4.09%	1.16%	0.68%	5.06%	1.23%	1.26%	1.68%	0.00%	3.57%
RYURX Rydex Inverse S&P 500 Strategy Fund	4.06%	3.82%	6.78%	2.79%	0.00%	0.00%	0.42%	0.86%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both RYURX and PSTIX in my portfolio?

With a correlation of 0.99, RYURX and PSTIX 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, RYURX or PSTIX?

RYURX has higher volatility (3.38%) compared to PSTIX (3.19%). In terms of maximum drawdown, RYURX dropped -96.72% vs PSTIX's -90.52%.

Which has better risk-adjusted returns?

PSTIX currently has the higher Sharpe Ratio (-0.65 vs -0.85), 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.