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AB Municipal Income Fund National Portfolio (ALTHX...
Performance
Return for Risk
Dividends
Drawdowns
Volatility

Fund Info

ISIN
US0186421089
CUSIP
018642108
Inception Date
Dec 28, 1986
Min. Investment
$2,500
Distribution Policy
Distributing
Asset Class
Bond

Share Price Chart


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Performance

Performance Chart

The chart shows the growth of an initial investment of $10,000 in AB Municipal Income Fund National Portfolio, comparing it to the performance of the S&P 500 index or another benchmark. All prices have been adjusted for splits and dividends.


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S&P 500 Index

Returns By Period

AB Municipal Income Fund National Portfolio (ALTHX) has returned -0.46% so far this year and 3.72% over the past 12 months. Over the last ten years, ALTHX has returned 2.04% per year, falling short of the S&P 500 Index benchmark, which averaged 12.16% annually.


AB Municipal Income Fund National Portfolio

1D
0.31%
1M
-2.55%
YTD
-0.46%
6M
1.06%
1Y
3.72%
3Y*
3.37%
5Y*
0.85%
10Y*
2.04%

Benchmark (S&P 500 Index)

1D
2.91%
1M
-5.09%
YTD
-4.63%
6M
-2.39%
1Y
16.33%
3Y*
16.69%
5Y*
10.18%
10Y*
12.16%
*Multi-year figures are annualized to reflect compound growth (CAGR)

Monthly Returns

Based on dividend-adjusted daily data since Jun 20, 1996, ALTHX's average daily return is +0.02%, while the average monthly return is +0.33%. At this rate, your investment would double in approximately 17.5 years.

Historically, 65% of months were positive and 35% were negative. The best month was Nov 2023 with a return of +5.9%, while the worst month was Mar 2020 at -5.9%. The longest winning streak lasted 12 consecutive months, and the longest losing streak was 5 months.

On a daily basis, ALTHX closed higher 36% of trading days. The best single day was Mar 25, 2020 with a return of +3.5%, while the worst single day was Mar 19, 2020 at -3.4%.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
20260.72%1.41%-2.55%-0.46%
20250.61%1.46%-1.23%-0.47%-0.43%0.71%-0.45%0.75%2.52%1.26%0.17%0.09%5.05%
20240.07%0.04%-0.10%-1.19%0.29%1.36%0.79%0.92%1.06%-1.45%1.69%-1.09%2.36%
20232.91%-1.94%1.55%0.24%-0.68%0.57%0.12%-0.90%-2.61%-1.74%5.94%2.49%5.76%
2022-2.45%-0.51%-3.00%-2.79%1.22%-2.23%2.71%-2.20%-4.05%-1.05%4.31%-0.17%-10.06%
20210.75%-1.67%0.65%0.94%0.51%0.43%0.72%-0.40%-0.69%-0.03%0.90%0.06%2.15%

Benchmark Metrics

AB Municipal Income Fund National Portfolio has an annualized alpha of 4.01%, beta of -0.00, and R² of 0.00 versus S&P 500 Index. Calculated based on daily prices since June 21, 1996.

  • This fund participates in less of S&P 500 Index's moves in both directions, but captures a larger share of gains (13.17%) than losses (0.51%) — typical of diversified or defensive assets.
  • Beta of -0.00 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
4.01%
Beta
-0.00
0.00
Upside Capture
13.17%
Downside Capture
0.51%

Expense Ratio

ALTHX has an expense ratio of 0.75%, placing it in the medium range.


Return for Risk

Risk / Return Rank

ALTHX ranks 45 for risk / return — on par with similar mutual funds. You're getting a typical balance of risk and reward. Not a standout, but not a red flag either — a reasonable choice if other factors align with your goals.


ALTHX Risk / Return Rank: 4545
Overall Rank
ALTHX Sharpe Ratio Rank: 4747
Sharpe Ratio Rank
ALTHX Sortino Ratio Rank: 4141
Sortino Ratio Rank
ALTHX Omega Ratio Rank: 6767
Omega Ratio Rank
ALTHX Calmar Ratio Rank: 3939
Calmar Ratio Rank
ALTHX Martin Ratio Rank: 3030
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 AB Municipal Income Fund National Portfolio (ALTHX) and compare them to a chosen benchmark (S&P 500 Index).


ALTHXBenchmarkDifference

Sharpe ratio

Return per unit of total volatility

0.96

0.90

+0.06

Sortino ratio

Return per unit of downside risk

1.30

1.39

-0.08

Omega ratio

Gain probability vs. loss probability

1.26

1.21

+0.05

Calmar ratio

Return relative to maximum drawdown

1.06

1.40

-0.34

Martin ratio

Return relative to average drawdown

3.35

6.61

-3.25

Explore ALTHX risk-adjusted metrics in detail

Dive deeper into individual metrics with historical trends, benchmark comparisons, and performance across different time periods.

Dividends

Dividend History

AB Municipal Income Fund National Portfolio provided a 3.53% dividend yield over the last twelve months, with an annual payout of $0.34 per share. The fund has been increasing its distributions for 4 consecutive years.


1.00%2.00%3.00%4.00%5.00%$0.00$0.10$0.20$0.30$0.4020152016201720182019202020212022202320242025
Dividends
Dividend Yield
PeriodTTM20252024202320222021202020192018201720162015
Dividend$0.34$0.44$0.32$0.27$0.22$0.17$0.26$0.30$0.31$0.31$0.31$0.35

Dividend yield

3.53%4.55%3.27%2.73%2.34%1.57%2.43%2.84%3.12%3.01%3.11%3.37%

Monthly Dividends

The table displays the monthly dividend distributions for AB Municipal Income Fund National Portfolio. 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$0.06
2025$0.06$0.05$0.05$0.05$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.44
2024$0.03$0.02$0.00$0.03$0.03$0.00$0.03$0.03$0.02$0.03$0.05$0.05$0.32
2023$0.03$0.02$0.03$0.02$0.02$0.02$0.02$0.02$0.02$0.00$0.03$0.03$0.27
2022$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.00$0.02$0.02$0.02$0.22
2021$0.00$0.00$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.17

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 AB Municipal Income Fund National Portfolio. 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 AB Municipal Income Fund National Portfolio was 15.22%, occurring on Dec 15, 2008. Recovery took 179 trading sessions.

The current AB Municipal Income Fund National Portfolio drawdown is 2.55%.


Depth

Start

To Bottom

Bottom

To Recover

End

Total

-15.22%Jan 24, 2008227Dec 15, 2008179Sep 1, 2009406
-14.37%Aug 5, 2021310Oct 26, 2022721Sep 11, 20251031
-12.83%Mar 3, 202014Mar 20, 2020170Nov 19, 2020184
-8.52%Apr 22, 1999189Jan 19, 2000192Oct 20, 2000381
-8.26%May 3, 201387Sep 5, 2013227Jul 31, 2014314

Volatility

Volatility Chart

The chart below shows the rolling one-month volatility.


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