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RYSOX vs. FDFIX
Performance
Risk-Adjusted Performance
Dividends
Drawdowns
Volatility

Correlation

The correlation between RYSOX and FDFIX is 1.00, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.


-0.50.00.51.01.0

Performance

RYSOX vs. FDFIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Rydex S&P 500 Fund (RYSOX) and Fidelity Flex 500 Index Fund (FDFIX). The values are adjusted to include any dividend payments, if applicable.

-5.00%0.00%5.00%10.00%SeptemberOctoberNovemberDecember2025February
5.57%
7.42%
RYSOX
FDFIX

Key characteristics

Sharpe Ratio

RYSOX:

1.50

FDFIX:

1.75

Sortino Ratio

RYSOX:

2.04

FDFIX:

2.36

Omega Ratio

RYSOX:

1.27

FDFIX:

1.32

Calmar Ratio

RYSOX:

2.27

FDFIX:

2.67

Martin Ratio

RYSOX:

8.68

FDFIX:

11.05

Ulcer Index

RYSOX:

2.23%

FDFIX:

2.04%

Daily Std Dev

RYSOX:

12.97%

FDFIX:

12.91%

Max Drawdown

RYSOX:

-55.24%

FDFIX:

-33.77%

Current Drawdown

RYSOX:

-2.26%

FDFIX:

-2.10%

Returns By Period

In the year-to-date period, RYSOX achieves a 2.15% return, which is significantly lower than FDFIX's 2.43% return.


RYSOX

YTD

2.15%

1M

-1.24%

6M

5.57%

1Y

16.78%

5Y*

8.71%

10Y*

8.10%

FDFIX

YTD

2.43%

1M

-1.08%

6M

7.42%

1Y

19.84%

5Y*

14.29%

10Y*

N/A

*Annualized

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.


RYSOX vs. FDFIX - Expense Ratio Comparison

RYSOX has a 1.56% expense ratio, which is higher than FDFIX's 0.00% expense ratio.


RYSOX
Rydex S&P 500 Fund
Expense ratio chart for RYSOX: current value at 1.56% compared with the broader market ranging from 0.00% to 2.12%.0.50%1.00%1.50%2.00%1.56%
Expense ratio chart for FDFIX: current value at 0.00% compared with the broader market ranging from 0.00% to 2.12%.0.50%1.00%1.50%2.00%0.00%

Risk-Adjusted Performance

RYSOX vs. FDFIX — Risk-Adjusted Performance Rank

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

RYSOX
The Risk-Adjusted Performance Rank of RYSOX is 8080
Overall Rank
The Sharpe Ratio Rank of RYSOX is 7676
Sharpe Ratio Rank
The Sortino Ratio Rank of RYSOX is 7575
Sortino Ratio Rank
The Omega Ratio Rank of RYSOX is 7676
Omega Ratio Rank
The Calmar Ratio Rank of RYSOX is 8686
Calmar Ratio Rank
The Martin Ratio Rank of RYSOX is 8585
Martin Ratio Rank

FDFIX
The Risk-Adjusted Performance Rank of FDFIX is 8585
Overall Rank
The Sharpe Ratio Rank of FDFIX is 8383
Sharpe Ratio Rank
The Sortino Ratio Rank of FDFIX is 8282
Sortino Ratio Rank
The Omega Ratio Rank of FDFIX is 8383
Omega Ratio Rank
The Calmar Ratio Rank of FDFIX is 8989
Calmar Ratio Rank
The Martin Ratio Rank of FDFIX is 9090
Martin Ratio Rank
The risk-adjusted ranks indicate the investment's position relative to the market. A rank closer to 100 signifies top-performing investments, while a rank closer to 0 might suggest underperformance, based on the selected ratio. The values are calculated based on the past 12 months of returns.

RYSOX vs. FDFIX - Risk-Adjusted Performance Comparison

This table presents a comparison of risk-adjusted performance metrics for Rydex S&P 500 Fund (RYSOX) and Fidelity Flex 500 Index Fund (FDFIX). 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.


Sharpe ratio
The chart of Sharpe ratio for RYSOX, currently valued at 1.50, compared to the broader market-1.000.001.002.003.004.001.501.75
The chart of Sortino ratio for RYSOX, currently valued at 2.04, compared to the broader market0.002.004.006.008.0010.0012.002.042.36
The chart of Omega ratio for RYSOX, currently valued at 1.27, compared to the broader market1.002.003.004.001.271.32
The chart of Calmar ratio for RYSOX, currently valued at 2.27, compared to the broader market0.005.0010.0015.0020.002.272.67
The chart of Martin ratio for RYSOX, currently valued at 8.68, compared to the broader market0.0020.0040.0060.0080.008.6811.05
RYSOX
FDFIX

The current RYSOX Sharpe Ratio is 1.50, which is comparable to the FDFIX Sharpe Ratio of 1.75. The chart below compares the historical Sharpe Ratios of RYSOX and FDFIX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.


Rolling 12-month Sharpe Ratio1.502.002.503.003.50SeptemberOctoberNovemberDecember2025February
1.50
1.75
RYSOX
FDFIX

Dividends

RYSOX vs. FDFIX - Dividend Comparison

RYSOX's dividend yield for the trailing twelve months is around 0.15%, less than FDFIX's 1.23% yield.


TTM20242023202220212020201920182017201620152014
RYSOX
Rydex S&P 500 Fund
0.15%0.15%0.13%0.00%0.00%0.04%0.22%0.12%0.25%0.12%0.03%0.04%
FDFIX
Fidelity Flex 500 Index Fund
1.23%1.26%1.48%1.70%1.18%1.52%1.78%1.81%0.85%0.00%0.00%0.00%

Drawdowns

RYSOX vs. FDFIX - Drawdown Comparison

The maximum RYSOX drawdown since its inception was -55.24%, which is greater than FDFIX's maximum drawdown of -33.77%. Use the drawdown chart below to compare losses from any high point for RYSOX and FDFIX. For additional features, visit the drawdowns tool.


-5.00%-4.00%-3.00%-2.00%-1.00%0.00%SeptemberOctoberNovemberDecember2025February
-2.26%
-2.10%
RYSOX
FDFIX

Volatility

RYSOX vs. FDFIX - Volatility Comparison

Rydex S&P 500 Fund (RYSOX) and Fidelity Flex 500 Index Fund (FDFIX) have volatilities of 3.43% and 3.42%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.


2.00%3.00%4.00%5.00%6.00%SeptemberOctoberNovemberDecember2025February
3.43%
3.42%
RYSOX
FDFIX
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Disclaimer

The information contained herein does not constitute investment advice and made available for educational purposes only. Prices and returns on equities are listed without consideration of fees, commissions, taxes, penalties, or interest payable due to purchasing, holding, or selling.

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