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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

ALTHX Performance Chart

AB Municipal Income Fund National Portfolio (ALTHX) is up 1.7% since the beginning of the year. ALTHX is currently trading at $10 per share. Investors who bought $1,000 worth of ALTHX shares 5 years ago would now be looking at an investment worth $1,045.


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S&P 500 Index

Returns By Period

AB Municipal Income Fund National Portfolio (ALTHX) has returned 1.68% so far this year and 6.79% over the past 12 months. Over the last ten years, ALTHX has returned 2.02% per year, falling short of the S&P 500 Index benchmark, which averaged 13.75% annually.


AB Municipal Income Fund National Portfolio

1D
0.10%
1M
1.46%
YTD
1.68%
6M
2.09%
1Y
6.79%
3Y*
4.15%
5Y*
0.89%
10Y*
2.02%

Benchmark (S&P 500 Index)

1D
-0.57%
1M
1.39%
YTD
9.73%
6M
10.46%
1Y
24.50%
3Y*
19.43%
5Y*
12.21%
10Y*
13.75%
*Multi-year figures are annualized to reflect compound growth (CAGR)

ALTHX Monthly Returns History

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, an 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%-2.07%0.92%0.51%0.21%1.68%
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 4.05%, beta of -0.00, and R2 of 0.00 versus S&P 500 Index. Calculated based on daily prices since June 20, 1996.

  • This fund participates in less of S&P 500 Index's moves in both directions, but captures a larger share of gains (13.04%) than losses (0.35%) - 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
4.05%
Beta
-0.00
0.00
Upside Capture
13.04%
Downside Capture
0.35%

Expense Ratio

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


Return for Risk

Risk / Return Rank

ALTHX ranks 69 for risk / return — better than 69% 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.


ALTHX Risk / Return Rank: 6969
Overall Rank
ALTHX Sharpe Ratio Rank: 8383
Sharpe Ratio Rank
ALTHX Sortino Ratio Rank: 8989
Sortino Ratio Rank
ALTHX Omega Ratio Rank: 9090
Omega Ratio Rank
ALTHX Calmar Ratio Rank: 4141
Calmar Ratio Rank
ALTHX Martin Ratio Rank: 4040
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 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.


ALTHXBenchmarkDifference
Sharpe ratioReturn per unit of total volatility

+0.55

Sortino ratioReturn per unit of downside risk

+1.38

Omega ratioGain probability vs. loss probability

1.62

1.36

+0.26

Calmar ratioReturn relative to maximum drawdown

2.39

2.71

-0.31

Martin ratioReturn relative to average drawdown

8.30

12.15

-3.85

Dividends

Dividend History

AB Municipal Income Fund National Portfolio provided a 3.49% 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

3.49%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$0.03$0.03$0.03$0.00$0.14
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 0.46%.


Related event

Drawdown

Fall

Recovery

Underwater

Financial crisis2007–2009
-15.22%Dec 2008
10mo 26d8mo 20d
1y 7moJan 2008 - Sep 2009
Bear market2022
-14.37%Oct 2022
1y 2mo2y 10mo
4y 1moAug 2021 - Sep 2025
COVID crash2020
-12.83%Mar 2020
17d8mo 4d
8mo 21dMar 2020 - Nov 2020
2000 pullback2000
-8.52%Jan 2000
9mo 2d9mo 5d
1y 6moApr 1999 - Oct 2000
2013 pullback2013
-8.26%Sep 2013
4mo 5d10mo 29d
1y 2moMay 2013 - Jul 2014

Drawdown Indicators


ALTHXBenchmarkDifference

Max Drawdown

Largest peak-to-trough decline

-15.22%

-56.78%

+41.56%

Max Drawdown (1Y)

Largest decline over 1 year

-2.85%

-9.10%

+6.25%

Max Drawdown (3Y)

Largest decline over 3 years

-5.46%

-18.90%

+13.44%

Max Drawdown (5Y)

Largest decline over 5 years

-14.37%

-25.43%

+11.06%

Max Drawdown (10Y)

Largest decline over 10 years

-14.37%

-33.92%

+19.55%

Current Drawdown

Current decline from peak

-0.46%

-1.29%

+0.83%

Average Drawdown

Average peak-to-trough decline

-2.00%

-10.72%

+8.72%

Ulcer Index

Depth and duration of drawdowns from previous peaks

0.82%

2.02%

-1.20%

Volatility

Volatility Chart

The chart below shows the rolling one-month volatility.


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Portfolio Analyzer

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