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CULAX vs. SPY
Performance
Risk-Adjusted Performance
Dividends
Drawdowns
Volatility

Correlation

The correlation between CULAX and SPY is 0.08, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.


Performance

CULAX vs. SPY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Calvert Ultra-Short Duration Income Fund (CULAX) and SPDR S&P 500 ETF (SPY). The values are adjusted to include any dividend payments, if applicable.

0.00%100.00%200.00%300.00%400.00%500.00%December2025FebruaryMarchAprilMay
51.56%
481.46%
CULAX
SPY

Key characteristics

Sharpe Ratio

CULAX:

3.20

SPY:

0.54

Sortino Ratio

CULAX:

9.70

SPY:

0.90

Omega Ratio

CULAX:

3.02

SPY:

1.13

Calmar Ratio

CULAX:

23.78

SPY:

0.57

Martin Ratio

CULAX:

60.89

SPY:

2.24

Ulcer Index

CULAX:

0.08%

SPY:

4.82%

Daily Std Dev

CULAX:

1.51%

SPY:

20.02%

Max Drawdown

CULAX:

-7.40%

SPY:

-55.19%

Current Drawdown

CULAX:

-0.10%

SPY:

-7.53%

Returns By Period

In the year-to-date period, CULAX achieves a 1.03% return, which is significantly higher than SPY's -3.30% return. Over the past 10 years, CULAX has underperformed SPY with an annualized return of 2.10%, while SPY has yielded a comparatively higher 12.33% annualized return.


CULAX

YTD

1.03%

1M

0.00%

6M

1.82%

1Y

4.81%

5Y*

3.29%

10Y*

2.10%

SPY

YTD

-3.30%

1M

13.81%

6M

-4.52%

1Y

10.65%

5Y*

15.81%

10Y*

12.33%

*Annualized

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CULAX vs. SPY - Expense Ratio Comparison

CULAX has a 0.72% expense ratio, which is higher than SPY's 0.09% expense ratio.


Risk-Adjusted Performance

CULAX vs. SPY — Risk-Adjusted Performance Rank

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

CULAX
The Risk-Adjusted Performance Rank of CULAX is 9999
Overall Rank
The Sharpe Ratio Rank of CULAX is 9898
Sharpe Ratio Rank
The Sortino Ratio Rank of CULAX is 9999
Sortino Ratio Rank
The Omega Ratio Rank of CULAX is 9999
Omega Ratio Rank
The Calmar Ratio Rank of CULAX is 100100
Calmar Ratio Rank
The Martin Ratio Rank of CULAX is 9999
Martin Ratio Rank

SPY
The Risk-Adjusted Performance Rank of SPY is 6363
Overall Rank
The Sharpe Ratio Rank of SPY is 5959
Sharpe Ratio Rank
The Sortino Ratio Rank of SPY is 6161
Sortino Ratio Rank
The Omega Ratio Rank of SPY is 6464
Omega Ratio Rank
The Calmar Ratio Rank of SPY is 6767
Calmar Ratio Rank
The Martin Ratio Rank of SPY is 6464
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.

CULAX vs. SPY - Risk-Adjusted Performance Comparison

This table presents a comparison of risk-adjusted performance metrics for Calvert Ultra-Short Duration Income Fund (CULAX) and SPDR S&P 500 ETF (SPY). 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.


The current CULAX Sharpe Ratio is 3.20, which is higher than the SPY Sharpe Ratio of 0.54. The chart below compares the historical Sharpe Ratios of CULAX and SPY, 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 Ratio0.001.002.003.004.00December2025FebruaryMarchAprilMay
3.20
0.54
CULAX
SPY

Dividends

CULAX vs. SPY - Dividend Comparison

CULAX's dividend yield for the trailing twelve months is around 4.38%, more than SPY's 1.27% yield.


TTM20242023202220212020201920182017201620152014
CULAX
Calvert Ultra-Short Duration Income Fund
4.38%4.90%4.52%1.77%0.64%1.24%2.45%2.10%1.25%1.10%0.72%0.68%
SPY
SPDR S&P 500 ETF
1.27%1.21%1.40%1.65%1.20%1.52%1.75%2.04%1.80%2.03%2.06%1.87%

Drawdowns

CULAX vs. SPY - Drawdown Comparison

The maximum CULAX drawdown since its inception was -7.40%, smaller than the maximum SPY drawdown of -55.19%. Use the drawdown chart below to compare losses from any high point for CULAX and SPY. For additional features, visit the drawdowns tool.


-20.00%-15.00%-10.00%-5.00%0.00%December2025FebruaryMarchAprilMay
-0.10%
-7.53%
CULAX
SPY

Volatility

CULAX vs. SPY - Volatility Comparison

The current volatility for Calvert Ultra-Short Duration Income Fund (CULAX) is 0.25%, while SPDR S&P 500 ETF (SPY) has a volatility of 12.36%. This indicates that CULAX experiences smaller price fluctuations and is considered to be less risky than SPY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.


0.00%5.00%10.00%15.00%December2025FebruaryMarchAprilMay
0.25%
12.36%
CULAX
SPY