ABTZX Performance — AB High Income Municipal Portfolio, Class Z
Data updated: 2026-09-25
ABTZX returned +0.93% year to date and +7.58% over one year to Jul 2026. Annualised returns are +4.50% over 3 years and 0.00% over 5 years. The fund beat its Long-Term Municipal Bond category average: $100 invested three years ago grew to $114, against $110 for the category, and to $108 over one year, against $106. Volatility over the past three years was 8.29% a year. In the 12 months to Jul 2026 the fund lost a net $14.3M, and assets reached $2.75B.
ABTZX Growth of $100
What $100 invested in AB High Income Municipal Portfolio grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Long-Term Municipal Bond category average over the same months.
| Period | ABTZX | Category average |
|---|---|---|
| 1 year (Aug 2025 – Jul 2026) | $108 | $106 |
| 3 years (Aug 2023 – Jul 2026) | $114 | $110 |
| 5 years (Aug 2021 – Jul 2026) | $100 | $101 |
| Since data start (Sep 2019 – Jul 2026) | $112 | $108 |
ABTZX Trailing Returns
Total returns to Jul 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +0.93% |
| 1 year | +7.58% |
| 3 years (annualised) | +4.50% |
| 5 years (annualised) | 0.00% |
ABTZX Annual Returns
Calendar-year total returns of AB High Income Municipal Portfolio, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jul) | +0.93% |
| 2025 | +4.24% |
| 2024 | +4.63% |
| 2023 | +6.61% |
| 2022 | −15.16% |
| 2021 | +6.52% |
| 2020 | +5.13% |
| 2019 (Sep–Dec) | +0.54% |
ABTZX Monthly Returns
Monthly total returns as reported on SEC Form N-PORT.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +0.6% | +2.0% | −2.8% | +1.4% | +0.9% | +1.5% | −2.5% | — | — | — | — | — |
| 2025 | +0.6% | +1.9% | −2.0% | −1.2% | −0.5% | +0.3% | −1.1% | +1.2% | +3.5% | +1.5% | +0.4% | −0.1% |
| 2024 | +0.4% | +0.2% | +0.6% | −2.1% | +0.8% | +3.2% | +1.0% | +1.4% | +1.7% | −2.1% | +1.7% | −2.1% |
| 2023 | +4.5% | −3.3% | +2.0% | +0.5% | −1.0% | +0.1% | +0.1% | −1.7% | −4.4% | −2.5% | +8.8% | +4.0% |
| 2022 | −2.8% | −0.8% | −4.1% | −4.4% | +1.9% | −4.3% | +4.1% | −2.5% | −6.6% | −2.4% | +6.9% | −0.5% |
| 2021 | +2.0% | −1.7% | +1.0% | +1.4% | +1.1% | +1.1% | +1.1% | −0.3% | −0.9% | −0.1% | +1.4% | +0.3% |
| 2020 | +2.4% | +2.0% | −10.6% | −3.2% | +3.4% | +4.0% | +2.9% | +0.2% | −0.1% | +0.1% | +2.7% | +2.1% |
| 2019 | — | — | — | — | — | — | — | — | −0.4% | 0.0% | +0.3% | +0.7% |
ABTZX Risk
Risk measures from monthly returns over Aug 2023 – Jul 2026.
- 3-year volatility (annualised): 8.29%
- 3-year Sharpe ratio: -0.00 (vs 4.5% risk-free rate)
- Best month: +8.79% (Nov 2023)
- Worst month: −4.41% (Sep 2023)
ABTZX Fund Flows
Monthly money in and out of AB High Income Municipal Portfolio, from SEC Form N-PORT.
- 12-month net flow: −$14.3M
- 12-month gross sales (incl. reinvestments): $798.3M
- Sales ÷ redemptions: 0.98×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jul 2026 | $55.5M | $47.7M | $7.8M |
| Jun 2026 | $53.5M | $49.0M | $4.5M |
| May 2026 | $44.9M | $47.1M | −$2.2M |
| Apr 2026 | $55.6M | $53.0M | $2.6M |
| Mar 2026 | $46.8M | $52.1M | −$5.3M |
| Feb 2026 | $67.8M | $54.6M | $13.2M |
| Jan 2026 | $102.5M | $39.4M | $63.1M |
| Dec 2025 | $78.8M | $117.8M | −$39.1M |
| Nov 2025 | $78.9M | $84.7M | −$5.8M |
| Oct 2025 | $51.7M | $92.4M | −$40.7M |
| Sep 2025 | $99.9M | $89.6M | $10.3M |
| Aug 2025 | $62.3M | $85.1M | −$22.8M |
ABTZX Assets Under Management
Net assets of AB High Income Municipal Portfolio by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-07-31 | $2.75B |
| 2026-05-31 | $2.79B |
| 2026-02-28 | $2.84B |
| 2025-11-30 | $2.77B |
| 2025-08-31 | $2.69B |
| 2025-05-31 | $2.73B |
| 2025-02-28 | $3.01B |
| 2024-11-30 | $3.07B |
| 2024-08-31 | $3.01B |
| 2024-05-31 | $2.79B |
| 2024-02-29 | $2.87B |
| 2023-11-30 | $2.87B |
For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.