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WATFX vs. AGG
Performance
Return for Risk
Drawdowns
Volatility
Dividends

Performance

WATFX vs. AGG - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Western Asset Core Bond Fund (WATFX) and iShares Core U.S. Aggregate Bond ETF (AGG). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, WATFX achieves a 0.02% return, which is significantly lower than AGG's 0.25% return. Both investments have delivered pretty close results over the past 10 years, with WATFX having a 1.54% annualized return and AGG not far ahead at 1.57%.


WATFX

1D
0.00%
1M
0.50%
YTD
0.02%
6M
0.02%
1Y
5.58%
3Y*
3.69%
5Y*
-0.89%
10Y*
1.54%

AGG

1D
-0.21%
1M
0.24%
YTD
0.25%
6M
0.09%
1Y
5.14%
3Y*
3.95%
5Y*
0.10%
10Y*
1.57%
*Multi-year figures are annualized to reflect compound growth (CAGR)

WATFX vs. AGG - Yearly Performance Comparison


2026 (YTD)202520242023202220212020201920182017
WATFX
Western Asset Core Bond Fund
0.02%8.01%0.44%5.52%-17.32%-2.13%9.12%10.44%-0.62%5.21%
AGG
iShares Core U.S. Aggregate Bond ETF
0.25%7.19%1.31%5.65%-13.02%-1.77%7.48%8.46%0.09%3.55%

Correlation

The correlation between WATFX and AGG is 0.92, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.


Correlation
Correlation (1Y)
Calculated over the trailing 1-year period

0.92

Correlation (3Y)
Calculated over the trailing 3-year period

0.95

Correlation (5Y)
Calculated over the trailing 5-year period

0.96

Correlation (10Y)
Calculated over the trailing 10-year period

0.91

Correlation (All Time)
Calculated using the full available price history since Sep 29, 2003

0.80

The correlation between WATFX and AGG shifts across timeframes, from 0.80 (all time) to 0.96 (5 years), reflecting how their relationship changes across market environments.

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Return for Risk

WATFX vs. AGG — Risk / Return Rank

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

WATFX
WATFX Risk / Return Rank: 2323
Overall Rank
WATFX Sharpe Ratio Rank: 2323
Sharpe Ratio Rank
WATFX Sortino Ratio Rank: 2424
Sortino Ratio Rank
WATFX Omega Ratio Rank: 2222
Omega Ratio Rank
WATFX Calmar Ratio Rank: 2525
Calmar Ratio Rank
WATFX Martin Ratio Rank: 2121
Martin Ratio Rank

AGG
AGG Risk / Return Rank: 3636
Overall Rank
AGG Sharpe Ratio Rank: 3636
Sharpe Ratio Rank
AGG Sortino Ratio Rank: 3838
Sortino Ratio Rank
AGG Omega Ratio Rank: 3535
Omega Ratio Rank
AGG Calmar Ratio Rank: 3737
Calmar Ratio Rank
AGG Martin Ratio Rank: 3636
Martin Ratio Rank
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.

WATFX vs. AGG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Western Asset Core Bond Fund (WATFX) and iShares Core U.S. Aggregate Bond ETF (AGG). 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.


WATFXAGGDifference
Sharpe ratioReturn per unit of total volatility

+0.02

Sortino ratioReturn per unit of downside risk

+0.04

Omega ratioGain probability vs. loss probability

1.24

1.24

+0.01

Calmar ratioReturn relative to maximum drawdown

1.84

1.87

-0.02

Martin ratioReturn relative to average drawdown

5.47

5.73

-0.26

WATFX vs. AGG - Sharpe Ratio Comparison

The current WATFX Sharpe Ratio is 1.36, which is comparable to the AGG Sharpe Ratio of 1.34. The chart below compares the historical Sharpe Ratios of WATFX and AGG, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.


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Sharpe Ratios by Period


WATFXAGGDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

1.36

1.34

+0.02

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

-0.13

0.02

-0.15

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.28

0.29

-0.01

Sharpe Ratio (All Time)

Calculated using the full available price history

0.56

0.59

-0.03

Drawdowns

WATFX vs. AGG - Drawdown Comparison

The maximum WATFX drawdown since its inception was -23.69%, which is greater than AGG's maximum drawdown of -18.43%. Use the drawdown chart below to compare losses from any high point for WATFX and AGG.


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Drawdown Indicators


WATFXAGGDifference

Max Drawdown

Largest peak-to-trough decline

-23.69%

-18.43%

-5.26%

Max Drawdown (1Y)

Largest decline over 1 year

-3.04%

-2.76%

-0.28%

Max Drawdown (3Y)

Largest decline over 3 years

-8.35%

-6.11%

-2.24%

Max Drawdown (5Y)

Largest decline over 5 years

-23.26%

-17.82%

-5.44%

Max Drawdown (10Y)

Largest decline over 10 years

-23.69%

-18.43%

-5.26%

Current Drawdown

Current decline from peak

-7.35%

-2.14%

-5.21%

Average Drawdown

Average peak-to-trough decline

-2.98%

-2.71%

-0.27%

Ulcer Index

Depth and duration of drawdowns from previous peaks

1.02%

0.90%

+0.12%

Volatility

WATFX vs. AGG - Volatility Comparison

Western Asset Core Bond Fund (WATFX) has a higher volatility of 1.42% compared to iShares Core U.S. Aggregate Bond ETF (AGG) at 1.30%. This indicates that WATFX's price experiences larger fluctuations and is considered to be riskier than AGG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.


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Volatility by Period


WATFXAGGDifference

Volatility (1M)

Calculated over the trailing 1-month period

1.42%

1.30%

+0.12%

Volatility (6M)

Calculated over the trailing 6-month period

2.87%

2.74%

+0.13%

Volatility (1Y)

Calculated over the trailing 1-year period

4.13%

3.85%

+0.28%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

6.83%

6.09%

+0.74%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

5.53%

5.40%

+0.13%

WATFX vs. AGG - Expense Ratio Comparison

WATFX has a 0.46% expense ratio, which is higher than AGG's 0.03% expense ratio.


Dividends

WATFX vs. AGG - Dividend Comparison

WATFX's dividend yield for the trailing twelve months is around 3.93%, less than AGG's 3.99% yield.


PositionTTM20252024202320222021202020192018201720162015
AGG
iShares Core U.S. Aggregate Bond ETF
3.99%3.89%3.74%3.13%2.39%1.77%2.14%2.70%2.72%2.32%2.39%2.45%
WATFX
Western Asset Core Bond Fund
3.93%4.15%4.48%3.35%2.39%2.05%3.90%3.62%2.92%2.34%2.51%2.74%

Frequently Asked Questions


With a correlation of 0.92, WATFX and AGG 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.

WATFX has higher volatility (1.42%) compared to AGG (1.30%). In terms of maximum drawdown, WATFX dropped -23.69% vs AGG's -18.43%.

WATFX currently has the higher Sharpe Ratio (1.36 vs 1.34), 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.

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