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AHMFX vs. ABHYX
Performance
Return for Risk
Dividends
Drawdowns
Volatility

Performance

AHMFX vs. ABHYX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American High-Income Municipal Bond Fund Class F-2 (AHMFX) and American Century High-Yield Municipal Fund (ABHYX). The values are adjusted to include any dividend payments, if applicable.

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AHMFX vs. ABHYX - Yearly Performance Comparison


2026 (YTD)202520242023202220212020201920182017
AHMFX
American High-Income Municipal Bond Fund Class F-2
-0.15%6.03%6.45%7.04%-12.44%5.49%4.61%9.12%1.80%9.09%
ABHYX
American Century High-Yield Municipal Fund
-0.31%3.77%6.16%5.90%-13.90%5.61%4.68%9.72%1.48%9.27%

Returns By Period

In the year-to-date period, AHMFX achieves a -0.15% return, which is significantly higher than ABHYX's -0.31% return. Over the past 10 years, AHMFX has outperformed ABHYX with an annualized return of 3.42%, while ABHYX has yielded a comparatively lower 2.85% annualized return.


AHMFX

1D
0.33%
1M
-2.06%
YTD
-0.15%
6M
1.48%
1Y
4.18%
3Y*
5.55%
5Y*
1.86%
10Y*
3.42%

ABHYX

1D
0.35%
1M
-2.26%
YTD
-0.31%
6M
1.15%
1Y
3.29%
3Y*
4.41%
5Y*
0.88%
10Y*
2.85%
*Multi-year figures are annualized to reflect compound growth (CAGR)

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AHMFX vs. ABHYX - Expense Ratio Comparison

AHMFX has a 0.42% expense ratio, which is lower than ABHYX's 0.59% expense ratio.


Return for Risk

AHMFX vs. ABHYX — Risk / Return Rank

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

AHMFX
AHMFX Risk / Return Rank: 2626
Overall Rank
AHMFX Sharpe Ratio Rank: 2323
Sharpe Ratio Rank
AHMFX Sortino Ratio Rank: 1818
Sortino Ratio Rank
AHMFX Omega Ratio Rank: 4343
Omega Ratio Rank
AHMFX Calmar Ratio Rank: 2626
Calmar Ratio Rank
AHMFX Martin Ratio Rank: 2323
Martin Ratio Rank

ABHYX
ABHYX Risk / Return Rank: 2121
Overall Rank
ABHYX Sharpe Ratio Rank: 2020
Sharpe Ratio Rank
ABHYX Sortino Ratio Rank: 1616
Sortino Ratio Rank
ABHYX Omega Ratio Rank: 3030
Omega Ratio Rank
ABHYX Calmar Ratio Rank: 2121
Calmar Ratio Rank
ABHYX Martin Ratio Rank: 1717
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.

AHMFX vs. ABHYX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American High-Income Municipal Bond Fund Class F-2 (AHMFX) and American Century High-Yield Municipal Fund (ABHYX). 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.


AHMFXABHYXDifference

Sharpe ratio

Return per unit of total volatility

0.71

0.60

+0.12

Sortino ratio

Return per unit of downside risk

0.97

0.83

+0.14

Omega ratio

Gain probability vs. loss probability

1.21

1.17

+0.04

Calmar ratio

Return relative to maximum drawdown

0.99

0.72

+0.27

Martin ratio

Return relative to average drawdown

3.25

2.19

+1.06

AHMFX vs. ABHYX - Sharpe Ratio Comparison

The current AHMFX Sharpe Ratio is 0.71, which is comparable to the ABHYX Sharpe Ratio of 0.60. The chart below compares the historical Sharpe Ratios of AHMFX and ABHYX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.


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Sharpe Ratios by Period


AHMFXABHYXDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

0.71

0.60

+0.12

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

0.39

0.18

+0.21

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.76

0.58

+0.18

Sharpe Ratio (All Time)

Calculated using the full available price history

1.52

1.03

+0.49

Correlation

The correlation between AHMFX and ABHYX is 0.86, 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.


Dividends

AHMFX vs. ABHYX - Dividend Comparison

AHMFX's dividend yield for the trailing twelve months is around 4.25%, less than ABHYX's 4.82% yield.


TTM20252024202320222021202020192018201720162015
AHMFX
American High-Income Municipal Bond Fund Class F-2
4.25%5.58%4.04%2.97%2.71%3.44%3.60%3.68%3.88%4.19%3.74%4.19%
ABHYX
American Century High-Yield Municipal Fund
4.82%5.11%4.96%4.02%2.77%3.50%3.35%4.08%3.90%3.61%3.61%3.91%

Drawdowns

AHMFX vs. ABHYX - Drawdown Comparison

The maximum AHMFX drawdown since its inception was -17.65%, smaller than the maximum ABHYX drawdown of -26.34%. Use the drawdown chart below to compare losses from any high point for AHMFX and ABHYX.


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Drawdown Indicators


AHMFXABHYXDifference

Max Drawdown

Largest peak-to-trough decline

-17.65%

-26.34%

+8.69%

Max Drawdown (1Y)

Largest decline over 1 year

-5.60%

-6.09%

+0.49%

Max Drawdown (5Y)

Largest decline over 5 years

-17.65%

-18.54%

+0.89%

Max Drawdown (10Y)

Largest decline over 10 years

-17.65%

-18.54%

+0.89%

Current Drawdown

Current decline from peak

-2.38%

-2.59%

+0.21%

Average Drawdown

Average peak-to-trough decline

-2.38%

-3.12%

+0.74%

Ulcer Index

Depth and duration of drawdowns from previous peaks

1.70%

1.99%

-0.29%

Volatility

AHMFX vs. ABHYX - Volatility Comparison

The current volatility for American High-Income Municipal Bond Fund Class F-2 (AHMFX) is 1.15%, while American Century High-Yield Municipal Fund (ABHYX) has a volatility of 1.33%. This indicates that AHMFX experiences smaller price fluctuations and is considered to be less risky than ABHYX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.


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Volatility by Period


AHMFXABHYXDifference

Volatility (1M)

Calculated over the trailing 1-month period

1.15%

1.33%

-0.18%

Volatility (6M)

Calculated over the trailing 6-month period

1.88%

2.09%

-0.21%

Volatility (1Y)

Calculated over the trailing 1-year period

6.45%

6.17%

+0.28%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

4.82%

4.90%

-0.08%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

4.53%

4.96%

-0.43%