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ISIN
US00170K5056
CUSIP
00170K505
Issuer
AMG
Inception Date
Jun 29, 2009
Min. Investment
$100,000
Distribution Policy
Distributing
Asset Class
Bond

Share Price Chart


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Performance

GWMIX Performance Chart

AMG GW&K Municipal Bond Fund (GWMIX) is up 1.2% since the beginning of the year. GWMIX is currently trading at $12 per share. Investors who bought $1,000 worth of GWMIX shares 5 years ago would now be looking at an investment worth $1,087.


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S&P 500 Index

Returns By Period

AMG GW&K Municipal Bond Fund (GWMIX) has returned 1.18% so far this year and 7.11% over the past 12 months. Over the last ten years, GWMIX has returned 2.29% per year, falling short of the S&P 500 Index benchmark, which averaged 13.88% annually.


AMG GW&K Municipal Bond Fund

1D
0.09%
1M
1.57%
YTD
1.18%
6M
1.44%
1Y
7.11%
3Y*
3.55%
5Y*
1.68%
10Y*
2.29%

Benchmark (S&P 500 Index)

1D
-0.37%
1M
-0.01%
YTD
9.16%
6M
8.64%
1Y
25.22%
3Y*
19.78%
5Y*
11.99%
10Y*
13.88%
*Multi-year figures are annualized to reflect compound growth (CAGR)

GWMIX Monthly Returns History

Based on dividend-adjusted daily data since Jan 4, 2010, GWMIX's average daily return is +0.01%, while the average monthly return is +0.30%. At this rate, an investment would double in approximately 19.3 years.

Historically, 61% of months were positive and 39% were negative. The best month was Nov 2023 with a return of +6.0%, while the worst month was Nov 2016 at -4.3%. The longest winning streak lasted 10 consecutive months, and the longest losing streak was 5 months.

On a daily basis, GWMIX closed higher 41% of trading days. The best single day was Mar 25, 2020 with a return of +3.8%, while the worst single day was Mar 19, 2020 at -2.7%.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
20261.29%1.34%-3.46%1.31%0.35%0.43%1.18%
20250.68%1.19%-2.21%-0.47%0.07%0.88%-0.19%0.98%2.39%1.48%0.33%0.34%5.52%
2024-0.40%-0.01%-0.21%-1.36%-0.94%1.65%0.93%0.84%1.01%-1.77%1.73%-1.34%0.04%
20233.12%-2.54%2.32%-0.19%-1.32%0.80%0.36%-1.22%-2.86%-0.90%6.00%2.67%6.04%
2022-3.06%-0.57%-3.26%-2.93%1.77%-1.37%3.21%-2.30%-3.70%-0.39%4.85%0.43%-7.45%
20210.44%-1.73%0.44%0.84%0.20%0.19%0.84%-0.37%-0.94%-0.38%0.76%3.93%4.19%

Benchmark Metrics

AMG GW&K Municipal Bond Fund has an annualized alpha of 3.51%, beta of 0.01, and R2 of 0.00 versus S&P 500 Index. Calculated based on daily prices since January 04, 2010.

  • This fund participates in less of S&P 500 Index's moves in both directions, but captures a larger share of gains (12.98%) than losses (4.76%) - typical of diversified or defensive assets.
  • Beta of 0.01 may look defensive, but with R2 of 0.00 this fund is largely uncorrelated with S&P 500 Index - low beta reflects independence, not downside protection. See the Volatility section for a true picture of this fund's risk.
  • R2 of 0.00 means this fund moves largely independently of S&P 500 Index - capture ratios reflect limited market correlation rather than active downside protection. Consider using a more representative benchmark.

Alpha
3.51%
Beta
0.01
0.00
Upside Capture
12.98%
Downside Capture
4.76%

Expense Ratio

GWMIX has an expense ratio of 0.39%, placing it in the medium range.


Return for Risk

Risk / Return Rank

GWMIX ranks 64 for risk / return — better than 64% of mutual funds on our site. You're getting solid returns for the risk taken. A good sign, especially for investors who want growth without excessive volatility.


GWMIX Risk / Return Rank: 6464
Overall Rank
GWMIX Sharpe Ratio Rank: 8888
Sharpe Ratio Rank
GWMIX Sortino Ratio Rank: 8585
Sortino Ratio Rank
GWMIX Omega Ratio Rank: 9292
Omega Ratio Rank
GWMIX Calmar Ratio Rank: 2828
Calmar Ratio Rank
GWMIX Martin Ratio Rank: 2525
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.

Return / Risk — by metrics

The table below present risk-adjusted performance metrics for AMG GW&K Municipal Bond Fund (GWMIX) and compare them to S&P 500 Index.

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.


GWMIXBenchmarkDifference
Sharpe ratioReturn per unit of total volatility

+0.63

Sortino ratioReturn per unit of downside risk

+0.95

Omega ratioGain probability vs. loss probability

1.66

1.37

+0.30

Calmar ratioReturn relative to maximum drawdown

1.85

2.78

-0.94

Martin ratioReturn relative to average drawdown

5.59

12.44

-6.85

Dividends

Dividend History

AMG GW&K Municipal Bond Fund provided a 2.71% dividend yield over the last twelve months, with an annual payout of $0.31 per share. The fund has been increasing its distributions for 3 consecutive years.


2.00%3.00%4.00%5.00%6.00%$0.00$0.20$0.40$0.60$0.8020152016201720182019202020212022202320242025
Dividends
Dividend Yield
PeriodTTM20252024202320222021202020192018201720162015
Dividend$0.31$0.33$0.29$0.24$0.21$0.71$0.23$0.27$0.22$0.19$0.38$0.35

Dividend yield

2.71%2.86%2.60%2.11%1.89%5.75%1.82%2.19%1.88%1.64%3.38%3.01%

Monthly Dividends

The table displays the monthly dividend distributions for AMG GW&K Municipal Bond Fund. The dividends shown in the table have been adjusted to account for any splits that may have occurred.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
2026$0.03$0.03$0.00$0.03$0.03$0.00$0.12
2025$0.03$0.02$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.33
2024$0.02$0.02$0.03$0.02$0.02$0.02$0.02$0.03$0.03$0.03$0.03$0.03$0.29
2023$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.24
2022$0.01$0.01$0.01$0.01$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.04$0.21
2021$0.02$0.01$0.01$0.01$0.01$0.01$0.01$0.01$0.01$0.01$0.01$0.56$0.71

Drawdowns

Drawdowns Chart

The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.


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Worst Drawdowns

The table below displays the maximum drawdowns of the AMG GW&K Municipal Bond Fund. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.

The maximum drawdown for the AMG GW&K Municipal Bond Fund was 12.27%, occurring on Oct 25, 2022. Recovery took 587 trading sessions.

The current AMG GW&K Municipal Bond Fund drawdown is 1.43%.


Related event

Drawdown

Fall

Recovery

Underwater

Bear market2022
-12.27%Oct 2022
9mo 24d2y 4mo
3y 1moJan 2022 - Feb 2025
COVID crash2020
-11.14%Mar 2020
10d4mo 13d
4mo 23dMar 2020 - Jul 2020
2013 pullback2013
-6.42%Sep 2013
4mo 2d7mo 8d
11mo 10dMay 2013 - Apr 2014
2016 pullback2016
-6.17%Dec 2016
4mo 27d7mo 25d
1y 17dJul 2016 - Jul 2017
2011 pullback2011
-5.76%Jan 2011
4mo 19d3mo 25d
8mo 14dSep 2010 - May 2011

Drawdown Indicators


GWMIXBenchmarkDifference

Max Drawdown

Largest peak-to-trough decline

-12.27%

-56.78%

+44.51%

Max Drawdown (1Y)

Largest decline over 1 year

-3.89%

-9.10%

+5.21%

Max Drawdown (3Y)

Largest decline over 3 years

-5.41%

-18.90%

+13.49%

Max Drawdown (5Y)

Largest decline over 5 years

-12.27%

-25.43%

+13.16%

Max Drawdown (10Y)

Largest decline over 10 years

-12.27%

-33.92%

+21.65%

Current Drawdown

Current decline from peak

-1.43%

-1.80%

+0.37%

Average Drawdown

Average peak-to-trough decline

-1.97%

-10.71%

+8.74%

Ulcer Index

Depth and duration of drawdowns from previous peaks

1.28%

2.03%

-0.75%

Volatility

Volatility Chart

The chart below shows the rolling one-month volatility.


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Portfolio Analyzer

Build a portfolio with GWMIX

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