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FEDUX vs. MBDFX
Performance
Return for Risk
Drawdowns
Volatility
Dividends

FEDUX vs. MBDFX

Last updated Jun 23, 2026

FEDUX (Fidelity Education Income Fund) and MBDFX (AMG GW&K Core Bond ESG Fund) are both Intermediate Core Bond funds. Over the past 5 years, FEDUX returned -0.44%/yr vs -0.58%/yr for MBDFX. Their correlation of 0.85 suggests significant overlap in exposure. FEDUX charges 0.00%/yr vs 0.56%/yr for MBDFX.

Performance

FEDUX vs. MBDFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Education Income Fund (FEDUX) and AMG GW&K Core Bond ESG Fund (MBDFX). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, FEDUX achieves a 0.13% return, which is significantly lower than MBDFX's 0.17% return.

FEDUX

1D
0.11%
1M
0.36%
YTD
0.13%
6M
0.49%
1Y
3.54%
3Y*
2.65%
5Y*
-0.44%
10Y*
—

MBDFX

1D
0.22%
1M
0.89%
YTD
0.17%
6M
0.28%
1Y
4.42%
3Y*
3.91%
5Y*
-0.58%
10Y*
1.29%
*Multi-year figures are annualized to reflect compound growth (CAGR)

FEDUX vs. MBDFX - Yearly Performance Comparison

2026 (YTD)20252024202320222021
FEDUX
Fidelity Education Income Fund		0.13%6.40%-0.29%1.62%-8.38%-1.27%
MBDFX
AMG GW&K Core Bond ESG Fund		0.17%7.29%1.24%5.73%-13.85%-1.06%

Correlation

The correlation between FEDUX and MBDFX is 0.76, 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

0.76

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

0.83

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

0.85

Correlation (All Time)
Calculated using the full available price history since May 25, 2021

0.85

The correlation between FEDUX and MBDFX has been stable across timeframes, ranging from 0.76 to 0.85 - a consistent structural relationship.

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Fidelity Education Income Fund

AMG GW&K Core Bond ESG Fund

Often compared with FEDUX:
FEDUX vs. TLTFEDUX vs. TRLVXFEDUX vs. APBDXFEDUX vs. NCRLXFEDUX vs. VUAA.LFEDUX vs. FMBPXFEDUX vs. CRAIX
Often compared with MBDFX:
MBDFX vs. VBTLXMBDFX vs. MSSCXMBDFX vs. SKSEXMBDFX vs. ARDEXMBDFX vs. CHTTXMBDFX vs. ARSVXMBDFX vs. GWMEX

Return for Risk

FEDUX vs. MBDFX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
FEDUX
FEDUX Risk / Return Rank: 3333
Overall Rank
FEDUX Sharpe Ratio Rank: 3030
Sharpe Ratio Rank
FEDUX Sortino Ratio Rank: 3838
Sortino Ratio Rank
FEDUX Omega Ratio Rank: 3434
Omega Ratio Rank
FEDUX Calmar Ratio Rank: 3535
Calmar Ratio Rank
FEDUX Martin Ratio Rank: 3030
Martin Ratio Rank
MBDFX
MBDFX Risk / Return Rank: 1717
Overall Rank
MBDFX Sharpe Ratio Rank: 1919
Sharpe Ratio Rank
MBDFX Sortino Ratio Rank: 1919
Sortino Ratio Rank
MBDFX Omega Ratio Rank: 1818
Omega Ratio Rank
MBDFX Calmar Ratio Rank: 1717
Calmar Ratio Rank
MBDFX Martin Ratio Rank: 1414
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.

FEDUX vs. MBDFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Education Income Fund (FEDUX) and AMG GW&K Core Bond ESG Fund (MBDFX). 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.

FEDUXMBDFXDifference
Sharpe ratioReturn per unit of total volatility
1.47
1.17

+0.30

Sortino ratioReturn per unit of downside risk
2.37
1.71

+0.66

Omega ratioGain probability vs. loss probability

1.29

1.21

+0.08

Calmar ratioReturn relative to maximum drawdown

2.13

1.37

+0.76

Martin ratioReturn relative to average drawdown

6.41

3.73

+2.68

FEDUX vs. MBDFX - Sharpe Ratio Comparison

The current FEDUX Sharpe Ratio is 1.47, which is comparable to the MBDFX Sharpe Ratio of 1.17. The chart below compares the historical Sharpe Ratios of FEDUX and MBDFX, 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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Drawdowns

FEDUX vs. MBDFX - Drawdown Comparison

The maximum FEDUX drawdown since its inception was -12.00%, smaller than the maximum MBDFX drawdown of -20.66%. Use the drawdown chart below to compare losses from any high point for FEDUX and MBDFX.

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Drawdown Indicators

FEDUXMBDFXDifference

Max Drawdown

Largest peak-to-trough decline

-12.00%

-20.66%

+8.66%

Max Drawdown (1Y)

Largest decline over 1 year

-1.72%

-3.25%

+1.53%

Max Drawdown (3Y)

Largest decline over 3 years

-2.80%

-6.99%

+4.19%

Max Drawdown (5Y)

Largest decline over 5 years

-12.00%

-20.54%

+8.54%

Max Drawdown (10Y)

Largest decline over 10 years

—

-20.66%

—

Current Drawdown

Current decline from peak

-2.66%

-4.30%

+1.64%

Average Drawdown

Average peak-to-trough decline

-6.42%

-3.96%

-2.46%

Ulcer Index

Depth and duration of drawdowns from previous peaks

0.57%

1.19%

-0.62%

Volatility

FEDUX vs. MBDFX - Volatility Comparison

The current volatility for Fidelity Education Income Fund (FEDUX) is 0.85%, while AMG GW&K Core Bond ESG Fund (MBDFX) has a volatility of 1.19%. This indicates that FEDUX experiences smaller price fluctuations and is considered to be less risky than MBDFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

FEDUXMBDFXDifference

Volatility (1M)

Calculated over the trailing 1-month period

0.85%

1.19%

-0.34%

Volatility (6M)

Calculated over the trailing 6-month period

1.82%

2.86%

-1.04%

Volatility (1Y)

Calculated over the trailing 1-year period

2.50%

3.83%

-1.33%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

3.14%

6.16%

-3.02%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

3.12%

5.06%

-1.94%

FEDUX vs. MBDFX - Expense Ratio Comparison

FEDUX has a 0.00% expense ratio, which is lower than MBDFX's 0.56% expense ratio.

Dividends

FEDUX vs. MBDFX - Dividend Comparison

FEDUX's dividend yield for the trailing twelve months is around 4.40%, more than MBDFX's 3.46% yield.

PositionTTM20252024202320222021202020192018201720162015
FEDUX
Fidelity Education Income Fund		4.40%4.43%0.36%0.71%0.00%0.13%0.00%0.00%0.00%0.00%0.00%0.00%
MBDFX
AMG GW&K Core Bond ESG Fund		3.46%3.66%3.50%2.92%2.16%2.35%1.84%2.40%2.30%2.10%2.06%4.17%

Frequently Asked Questions

FEDUX and MBDFX have a correlation of 0.76, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

MBDFX has higher volatility (1.19%) compared to FEDUX (0.85%). In terms of maximum drawdown, FEDUX dropped -12.00% vs MBDFX's -20.66%.

FEDUX currently has the higher Sharpe Ratio (1.47 vs 1.17), 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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