Alliancebernstein National Municipal Income Fund (AFB)

Alliancebernstein National Municipal Income Fund on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders and insider trades. Listed on NYSE.

Download CSV

66K

Short interest

settlement 2026-09-15

1.0

Days to cover

-0.5 days vs prior

16.8%

Short share of volume

2026-10-08

1,442

Fails to deliver

settlement 2026-09-14

Insider flow, 90 days

0 buys, 0 sells

As of 2026-10-08.

Short interest

FINRA, twice a month. The newest 24 settlements in the table, 48 in the chart. JSON

As of 15 September 2026, short interest in AFB is 65,959 shares, up 17,803 shares over the last month. Over the last 48 readings it ranged from 2,644 shares (30 April 2025) to 173,309 shares (15 June 2026). At the reported average volume of 91K shares a day that is 1.0 days to cover.

Embed this chart.The embed keeps its attribution line.

<iframe src="https://xoomar.com/embed/stocks/afb" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>

Preview Dark previewAdd ?theme=dark to the src for a dark chart.

Settlement	Shares short	Change	Avg daily volume	Days to cover
2026-09-15	65,959	-23.3%	91,469	1.00
2026-08-31	85,936	+78.5%	56,224	1.53
2026-08-14	48,156	-18.7%	57,574	1.00
2026-07-31	59,235	-8.5%	76,032	1.00
2026-07-15	64,769	-49.5%	91,694	1.00
2026-06-30	128,260	-26.0%	81,562	1.57
2026-06-15	173,309	+29.7%	98,217	1.76
2026-05-29	133,635	+49.0%	101,542	1.32
2026-05-15	89,716	-22.5%	117,827	1.00
2026-04-30	115,816	+151.7%	131,467	1.00
2026-04-15	46,010	-38.4%	112,190	1.00
2026-03-31	74,743	-9.7%	111,189	1.00
2026-03-13	82,765	+168.4%	136,174	1.00
2026-02-27	30,832	+34.2%	109,017	1.00
2026-02-13	22,973	+20.5%	136,084	1.00
2026-01-30	19,071	+3.8%	156,470	1.00
2026-01-15	18,375	+2.8%	73,980	1.00
2025-12-31	17,875	+9.8%	133,195	1.00
2025-12-15	16,287	-83.0%	135,777	1.00
2025-11-28	95,946	-8.7%	63,778	1.50
2025-11-14	105,042	-19.4%	98,165	1.07
2025-10-31	130,326	+32.8%	96,765	1.35
2025-10-15	98,127	-10.1%	128,824	1.00
2025-09-30	109,153	+28.3%	70,090	1.56

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 8 October 2026, the short share of AFB volume is 16.8%, down 23.5 points over the last five sessions. Over the last 30 readings it ranged from 4.4% (15 September 2026) to 62.5% (24 September 2026). The latest reading is 14.2 points below the 30-session average of 30.9%, on 148K shares reported.

Date	Short volume	Total volume	Short share	Exempt
2026-10-08	25K	148K	16.8%	0
2026-10-07	84K	155K	54.5%	0
2026-10-06	30K	125K	24.3%	0
2026-10-05	74K	126K	59.1%	500
2026-10-02	21K	116K	18.0%	0
2026-10-01	48K	120K	40.3%	0
2026-09-30	37K	155K	23.6%	0
2026-09-29	32K	72K	44.9%	0
2026-09-28	52K	108K	48.4%	0
2026-09-25	30K	392K	7.6%	0
2026-09-24	60K	97K	62.5%	0
2026-09-23	62K	131K	47.1%	0
2026-09-22	20K	88K	22.4%	0
2026-09-21	12K	63K	19.6%	0
2026-09-18	14K	44K	31.2%	0
2026-09-17	11K	60K	19.0%	0
2026-09-16	7K	27K	26.2%	135
2026-09-15	6K	127K	4.4%	0
2026-09-14	18K	48K	37.7%	0
2026-09-11	8K	38K	21.9%	0
2026-09-10	18K	59K	31.4%	783
2026-09-09	18K	64K	28.5%	0
2026-09-08	912	11K	8.3%	0
2026-09-04	15K	37K	38.8%	0
2026-09-03	52K	163K	31.7%	0
2026-09-02	8K	28K	26.7%	0
2026-09-01	11K	21K	55.5%	0
2026-08-31	8K	37K	22.8%	0
2026-08-28	6K	28K	21.9%	0
2026-08-27	5K	15K	32.8%	0

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 14 September 2026, the fails-to-deliver balance in AFB is 1,442 shares, down 5,670 shares over the last settlement date. Over the last 30 readings it ranged from 5 shares (2 July 2026) to 13,400 shares (21 August 2026).

Settlement	Shares failed	Price	Value
2026-09-14	1,442	$10.26	$15K
2026-09-03	7,112	$10.72	$76K
2026-09-02	500	$10.81	$5K
2026-08-26	2,658	$10.94	$29K
2026-08-25	7,698	$10.93	$84K
2026-08-24	8,798	$10.91	$96K
2026-08-21	13,400	$11.00	$147K
2026-08-20	7,705	$10.97	$85K
2026-08-19	6,867	$10.98	$75K
2026-08-10	1,428	$11.02	$16K
2026-08-07	2,464	$10.93	$27K
2026-08-06	4,412	$10.95	$48K
2026-08-05	4,309	$11.03	$48K
2026-08-04	4,476	$10.88	$49K
2026-07-07	9	$11.33	$102
2026-07-06	2,466	$11.39	$28K
2026-07-02	5	$11.50	$58
2026-06-29	2,481	$11.47	$28K
2026-06-26	121	$11.40	$1K
2026-06-25	110	$11.35	$1K
2026-06-24	3,016	$11.33	$34K
2026-06-23	5,496	$11.32	$62K
2026-06-22	6,235	$11.38	$71K
2026-06-18	1,501	$11.36	$17K
2026-06-17	4,508	$11.29	$51K
2026-06-16	6,084	$11.31	$69K
2026-06-15	5,112	$11.33	$58K
2026-06-12	3,280	$11.34	$37K
2026-06-11	11,686	$11.32	$132K
2026-06-09	213	$11.12	$2K

Insider trades

SEC Form 4, newest first, 50 of 80 shown. JSON

No open-market insider trades were reported for AFB in the last 90 days. The most recent filings are listed below. Latest filing: GERKEN R JAY (Director) on 2026-05-22.

Date	Insider	Title	Type	Shares	Price	Value	Owned after
2026-05-22	GERKEN R JAY	Director	Buy	3K	$10.96	$27K	3K
2026-04-21	MOODY GARRY L	Director	Sell	14K	$10.96	$148K	0
2025-11-06	Saba Capital Management, L.P.	10% owner	Sell	20K	$10.91	$214K	2.9M
2025-11-05	Saba Capital Management, L.P.	10% owner	Sell	22K	$10.99	$244K	2.9M
2025-11-04	Saba Capital Management, L.P.	10% owner	Sell	31K	$11.01	$340K	2.9M
2025-11-03	Saba Capital Management, L.P.	10% owner	Sell	684	$11.01	$8K	2.9M
2025-10-31	MOODY GARRY L	Director	Buy	5K	$11.06	$50K	14K
2025-10-31	MOODY GARRY L	Director	Buy	9K	$11.08	$100K	9K
2025-10-29	Saba Capital Management, L.P.	10% owner	Sell	8K	$11.00	$85K	2.9M
2025-10-27	WELLS FARGO & COMPANY/MN	TenPercentOwner	J	4K	price not stated in the filing	not stated	0
2025-10-27	Saba Capital Management, L.P.	10% owner	Sell	26K	$10.99	$282K	3.0M
2025-10-24	Saba Capital Management, L.P.	10% owner	Sell	20K	$11.01	$218K	3.0M
2025-10-23	Saba Capital Management, L.P.	10% owner	Sell	21K	$10.96	$235K	3.0M
2025-10-22	Saba Capital Management, L.P.	10% owner	Sell	2K	$11.03	$22K	3.0M
2025-10-09	Saba Capital Management, L.P.	10% owner	Sell	3K	$10.90	$27K	3.0M
2025-10-01	Saba Capital Management, L.P.	10% owner	Sell	60K	$10.94	$651K	3.0M
2025-09-22	Saba Capital Management, L.P.	10% owner	Sell	2K	$10.92	$21K	3.1M
2025-09-19	Saba Capital Management, L.P.	10% owner	Sell	4K	$10.91	$46K	3.1M
2025-09-17	Saba Capital Management, L.P.	10% owner	Sell	22K	$10.94	$246K	3.1M
2025-09-08	Weinstein Boaz	TenPercentOwner	Sell	4K	$10.65	$44K	3.1M
2025-09-08	Saba Capital Management, L.P.	10% owner	Sell	4K	$10.65	$44K	3.1M
2025-09-02	Weinstein Boaz	TenPercentOwner	Sell	8K	$10.36	$82K	3.1M
2025-09-02	Saba Capital Management, L.P.	10% owner	Sell	8K	$10.36	$82K	3.1M
2025-08-29	Saba Capital Management, L.P.	10% owner	Sell	515	$10.39	$5K	3.1M
2025-08-28	Saba Capital Management, L.P.	10% owner	Sell	6K	$10.42	$65K	3.1M
2025-08-27	Saba Capital Management, L.P.	10% owner	Sell	20K	$10.37	$211K	3.1M
2024-06-24	Saba Capital Management, L.P.	TenPercentOwner	Buy	35K	$11.05	$385K	3.1M
2024-06-07	Weinstein Boaz	TenPercentOwner	Buy	6K	$10.82	$66K	3.1M
2024-06-07	Banc of America Preferred Funding Corp	TenPercentOwner	Buy	2K	$10.87	$17K	0
2024-06-06	Banc of America Preferred Funding Corp	TenPercentOwner	J	6K	price not stated in the filing	not stated	0
2024-06-06	Banc of America Preferred Funding Corp	TenPercentOwner	Sell	2K	$10.89	$17K	0
2024-05-29	Saba Capital Management, L.P.	TenPercentOwner	Buy	7K	$10.75	$77K	3.1M
2024-05-23	Saba Capital Management, L.P.	TenPercentOwner	Buy	14K	$10.84	$156K	3.1M
2024-05-21	Saba Capital Management, L.P.	TenPercentOwner	Buy	47K	$10.90	$511K	3.1M
2024-05-20	Weinstein Boaz	TenPercentOwner	Buy	67K	$10.90	$735K	3.0M
2024-05-16	Saba Capital Management, L.P.	TenPercentOwner	Buy	44K	$10.91	$477K	3.0M
2024-05-15	Saba Capital Management, L.P.	TenPercentOwner	Buy	11K	$10.92	$122K	2.9M
2023-09-07	Banc of America Preferred Funding Corp	TenPercentOwner	J	4K	price not stated in the filing	not stated	6K
2022-04-12	MOODY GARRY L	Director	Sell	5K	$11.98	$56K	0
2021-09-29	TURNER MARSHALL C	Director	Buy	1K	$14.90	$15K	7K
2021-09-29	TURNER MARSHALL C	Director	Buy	771	$14.85	$11K	9K
2021-09-29	TURNER MARSHALL C	Director	Buy	1K	$14.91	$15K	8K
2021-09-28	TURNER MARSHALL C	Director	Buy	1K	$14.91	$15K	5K
2021-09-28	TURNER MARSHALL C	Director	Buy	1K	$14.89	$15K	6K
2021-08-10	TURNER MARSHALL C	Director	Buy	2K	$14.98	$30K	4K
2021-03-18	Loeb Jeanette W	Director	Buy	1K	$14.24	$16K	1K
2020-10-23	McMullen Carol	Director	Sell	100	$13.60	$1K	0
2020-10-23	McMullen Carol	Director	Sell	300	$13.59	$4K	100
2020-10-23	McMullen Carol	Director	Sell	2K	$13.60	$21K	400
2020-05-28	MOODY GARRY L	Director	Sell	5K	$13.16	$61K	5K

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.

Large holders (13D and 13G)

One row per reporting person with its latest filing, newest first. JSON

1 holder reports 5% or more of AFB in its latest filing, on Schedule 13G (passive). The holder is KARPUS MANAGEMENT, INC. at 13.6% of the class (3,899,325 shares), filed 2026-10-02 for an event on 2026-09-30.

Filed	Form	Holder	Shares	Of class	Event
2026-10-02	13G	KARPUS MANAGEMENT, INC.investment adviser	3.9M	13.6%	2026-09-30
2026-07-31	13G/Ano. 1	Allspring Global Investments Holdings, LLCparent holding company	1.4M	4.9%	2026-06-30
2026-02-18	13D/Ano. 9	Saba Capital Management, L.P.partnership, investment adviser	1.4M	4.9%	2026-02-13
2026-02-18	13D/Ano. 9	Boaz R. Weinsteinother entity	1.4M	4.9%	2026-02-13
2026-02-18	13D/Ano. 9	Saba Capital Management GP, LLCother entity	1.4M	4.9%	2026-02-13
2025-10-29	13D/Ano. 1	Wells Fargo & Companyparent holding company	0	0.0%	2025-10-27
2025-10-29	13D/Ano. 1	Wells Fargo Municipal Capital Strategies, LLCother entity	0	0.0%	2025-10-27

13F holders

Tracked managers holding AFB at their latest 13F. JSON

1 of the 30 tracked managers held AFB at their latest 13F, $320K in total at quarter-end prices. Citadel Advisors is the largest at $320K (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 1 added shares and 0 cut.

Fund	Quarter	Shares	Value	Of portfolio	Change in shares
Citadel Advisors	2026-06-30	28K	$320K	0.00%	new

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

What this page is

Alliancebernstein National Municipal Income Fund in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.

This page follows Alliancebernstein National Municipal Income Fund (AFB), SEC CIK 1162027, listed on NYSE. The cross-market tables live on the short interest and insider transactions hubs.

Source and updates

Short interest: FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-15.JSON and CSV
Daily short volume: FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-08.JSON and CSV
Fails to deliver: SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-14.JSON and CSV
Large holders: SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-10-02.JSON and CSV
13F holders: SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Insider trades: SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-05-22.JSON and CSV
Company record: EDGAR filing index for CIK 1162027Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits: 10 requests a minute without a key, 30 with a free key from a free account.

How to read it

Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Datasets

Frequently Asked Questions

How much of AFB is sold short?

65,959 shares were held short at the 2026-09-15 settlement, 1.0 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.

What is AFB's daily short volume?

On 2026-10-08, 24,740 of the 147,593 AFB shares reported to FINRA were sold short, 16.8% of the day's reported volume. Short volume is a flow for one day, not a position.

Does AFB have fails to deliver?

The SEC's latest file shows 1,442 AFB shares failed to deliver at settlement 2026-09-14. Fails are reported per settlement date and published twice a month with a lag.

Are AFB insiders buying or selling?

No open-market insider trades were reported for AFB in the last 90 days. The most recent filings are listed below. Latest filing: GERKEN R JAY (Director) on 2026-05-22.

Who owns 5% or more of AFB?

Which tracked 13F managers own AFB?

1 of the 30 tracked 13F managers held AFB shares at their latest filing, $320K in all. The largest: Ken Griffin's Citadel Advisors (28K shares, $320K).

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.

Alliancebernstein National Municipal Income Fund (AFB)

Short interest

Daily short volume

Fails to deliver

Insider trades

Large holders (13D and 13G)

13F holders

Alliancebernstein National Municipal Income Fund in the regulatory record

Source and updates

How to read it

Other company pages

Datasets

Frequently Asked Questions