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HowShorted

VMBS short interest Nasdaq Global Market

Vanguard Mortgage-Backed Secur. FINRA's reported shares short for this symbol, twice a month by settlement date, shown as the regulator publishes them. No percentage is shown: no SEC filer maps to the symbol (funds, notes, preferreds, warrants and foreign listings).

Shares short
2,818,981
vs previous settlement
+258,667 (+10.1%)
days to cover
1.74
Settlement date
15 Sep 2026

Shares short over time

Aggregate net short position time series for VMBS shares short

Days to cover

FINRA's own figure: reported shares short divided by the security's average daily trading volume, published alongside each settlement.

Aggregate net short position time series for VMBS days to cover

Fails to deliver

The SEC's fails-to-deliver figure for VMBS: the aggregate net balance of shares that failed to be delivered at each settlement date, published by the SEC twice a month and shown here verbatim for the trailing window. A balance is not a daily flow, and a fail has many ordinary causes; the SEC says it cannot guarantee the accuracy of the data. See what fails to deliver are and the largest balances today.

Latest balance
10
14 Sep 2026
Highest in window
1,877,376
21 Aug 2026
Days with a balance
132
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Vanguard Mortgage-Backed Secur fails to deliver

Source: U.S. Securities and Exchange Commission, fails-to-deliver data (public domain). Only settlement days with a positive balance appear; the largest balance in the window was 1.9M shares.

History

Every FINRA settlement we hold for VMBS, newest first. สณ marks a figure FINRA itself flagged as revised.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20262,818,981+258,6671.74
31 Aug 20262,560,314โˆ’552,3951.77
14 Aug 20263,112,709+11,3532.75
31 Jul 20263,101,356+2,031,7852.33
15 Jul 20261,069,571โˆ’1,435,1821.00
30 Jun 20262,504,753+833,1592.00
15 Jun 20261,671,594โˆ’1,294,1911.31
29 May 20262,965,785+527,5811.99
15 May 20262,438,204+1,393,4581.75
30 Apr 20261,044,746โˆ’1,978,2211.00
15 Apr 20263,022,967+1,427,0651.70
31 Mar 20261,595,902+1,259,9891.00
13 Mar 2026335,913+139,9511.00
27 Feb 2026195,962โˆ’607,9411.00
13 Feb 2026803,903โˆ’1,677,3591.00
30 Jan 20262,481,262โˆ’172,7761.45
15 Jan 20262,654,038+1,590,0511.00
31 Dec 20251,063,987โˆ’56,3461.00
15 Dec 20251,120,333โˆ’3,806,7841.00
28 Nov 20254,927,117+1,540,9753.50
14 Nov 20253,386,142+2,464,4211.97
31 Oct 2025921,721+187,7071.00
15 Oct 2025734,014โˆ’224,7871.00
30 Sep 2025958,801โˆ’331,2831.00
15 Sep 20251,290,084โˆ’1,672,6401.00
29 Aug 20252,962,724+1,506,2132.42
15 Aug 20251,456,511+292,9061.23
31 Jul 20251,163,605+90,1681.00
15 Jul 20251,073,437+887,5421.00
30 Jun 2025185,895โˆ’915,0931.00
13 Jun 20251,100,988+854,1091.00
30 May 2025246,879โˆ’820,9831.00
15 May 20251,067,862โˆ’129,3101.00
30 Apr 20251,197,172โˆ’2,587,4441.00
15 Apr 20253,784,616+3,432,0511.48
31 Mar 2025352,565โˆ’667,4651.00
14 Mar 20251,020,030+202,6471.00
28 Feb 2025817,383+437,8731.00
14 Feb 2025379,510โˆ’925,3311.00
31 Jan 20251,304,841โˆ’455,1661.00
15 Jan 20251,760,007โˆ’903,3511.00
31 Dec 20242,663,358โˆ’547,4181.15
13 Dec 20243,210,776โˆ’6,289,9691.00
29 Nov 20249,500,745+7,559,8032.33
15 Nov 20241,940,942+690,5781.23
31 Oct 20241,250,364+586,6711.00
15 Oct 2024663,693+1041.00
30 Sep 2024663,589โˆ’160,1441.00
13 Sep 2024823,733+58,5451.00
30 Aug 2024765,188โˆ’159,9311.00
15 Aug 2024925,119โˆ’1,867,8821.00
31 Jul 20242,793,001+2,164,4401.65
15 Jul 2024628,561โˆ’35,0551.00
28 Jun 2024663,616+413,2501.00
14 Jun 2024250,366โˆ’525,9221.00
31 May 2024776,288+206,6611.00
15 May 2024569,627โˆ’656,0401.00
30 Apr 20241,225,667+775,5751.00
15 Apr 2024450,092+92,5151.00
28 Mar 2024357,577โˆ’279,9391.00
15 Mar 2024637,516+248,6001.00
29 Feb 2024388,916โˆ’1,032,4991.00
15 Feb 20241,421,415+945,9741.00
31 Jan 2024475,441โˆ’214,3071.00
12 Jan 2024689,748+88,9221.00
29 Dec 2023600,826โˆ’581,8771.00
15 Dec 20231,182,703+769,7491.00
30 Nov 2023412,954โˆ’208,5411.00
15 Nov 2023621,495สณโˆ’83,5651.00
31 Oct 2023705,060โˆ’92,1821.00
13 Oct 2023797,242โˆ’625,3011.00
29 Sep 20231,422,543+436,8821.00
15 Sep 2023985,661+3,6741.00
31 Aug 2023981,987+135,9771.00
15 Aug 2023846,010โˆ’361,3651.00
31 Jul 20231,207,375+130,0581.00
14 Jul 20231,077,317โˆ’164,9691.00
30 Jun 20231,242,286+7,8011.00
15 Jun 20231,234,485โˆ’1,858,7831.00
31 May 20233,093,268+2,969,7393.28
15 May 2023123,529โˆ’624,5451.00
28 Apr 2023748,074+525,4811.00
14 Apr 2023222,593+44,8341.00
31 Mar 2023177,759โˆ’259,2991.00
15 Mar 2023437,058โˆ’993,3051.00
28 Feb 20231,430,363+772,3911.00
15 Feb 2023657,972โˆ’1,188,7991.00
31 Jan 20231,846,771+1,273,1191.00
13 Jan 2023573,652โˆ’171,9681.00
30 Dec 2022745,620+218,8511.00
15 Dec 2022526,769+246,1781.00
30 Nov 2022280,591โˆ’643,1321.00
15 Nov 2022923,723+663,4241.00
31 Oct 2022260,299โˆ’10,459,0291.00
14 Oct 202210,719,328+7,570,5333.12
30 Sep 20223,148,795+1,775,1241.37
15 Sep 20221,373,671+835,5501.00
31 Aug 2022538,121โˆ’495,4011.00
15 Aug 20221,033,522+178,4541.00
29 Jul 2022855,068โˆ’299,0681.00
15 Jul 20221,154,136+696,5431.00
30 Jun 2022457,593+336,2751.00
15 Jun 2022121,318โˆ’380,5971.00
31 May 2022501,915+93,5161.00
13 May 2022408,399โˆ’4,998,6131.00
29 Apr 20225,407,012+2,582,2461.00
14 Apr 20222,824,766+2,282,6941.21
31 Mar 2022542,072โˆ’127,9151.00
15 Mar 2022669,987+159,2621.00
28 Feb 2022510,725โˆ’1,177,9731.00
15 Feb 20221,688,698+1,507,8381.00
31 Jan 2022180,860โˆ’791,7751.00
14 Jan 2022972,635+762,4911.00
31 Dec 2021210,144โˆ’1,947,5461.00
15 Dec 20212,157,690+229,9991.35
30 Nov 20211,927,691โˆ’1,003,4941.39
15 Nov 20212,931,185+2,573,5252.06
29 Oct 2021357,660โˆ’403,3551.00
15 Oct 2021761,015+257,9221.00
30 Sep 2021503,093โˆ’796,8531.00
15 Sep 20211,299,946+995,6951.10
31 Aug 2021304,251โˆ’3,352,9491.00
13 Aug 20213,657,200+75,0633.83
30 Jul 20213,582,137+123,0572.99
15 Jul 20213,459,080+2,787,3972.54
30 Jun 2021671,683โˆ’167,2011.00
15 Jun 2021838,884สณโˆ’72,6951.00
28 May 2021911,579+303,3291.07
14 May 2021608,250+124,1391.00
30 Apr 2021484,111โˆ’4,082,1241.00
15 Apr 20214,566,235+2,931,2303.54
31 Mar 20211,635,005+162,2531.48
15 Mar 20211,472,752+548,7511.18
26 Feb 2021924,001+852,4881.00
12 Feb 202171,513โˆ’664,8171.00
29 Jan 2021736,330+348,7591.00
15 Jan 2021387,571+196,1961.00
31 Dec 2020191,375โˆ’1,966,4081.00
15 Dec 20202,157,783+1,395,2761.71
30 Nov 2020762,507+623,1321.00
13 Nov 2020139,375โˆ’1,640,9231.00
30 Oct 20201,780,298+845,7041.82
15 Oct 2020934,594+296,8621.00
30 Sep 2020637,732โˆ’374,8101.00
15 Sep 20201,012,542โˆ’87,4881.00
31 Aug 20201,100,030โˆ’1,213,2441.18
14 Aug 20202,313,274+1,263,5431.29
31 Jul 20201,049,731+606,7701.00
15 Jul 2020442,961+370,3081.00
30 Jun 202072,653โˆ’66,4401.00
15 Jun 2020139,093+58,8581.00
29 May 202080,235โˆ’62,3751.00
15 May 2020142,610โˆ’763,0721.00
30 Apr 2020905,682+721,3861.08
15 Apr 2020184,296+2,6831.00
31 Mar 2020181,613โˆ’322,3061.00
13 Mar 2020503,919+244,4471.00
28 Feb 2020259,472โˆ’9,6821.00
14 Feb 2020269,154โˆ’145,3611.00
31 Jan 2020414,515+95,7351.00
15 Jan 2020318,780+167,0111.00
31 Dec 2019151,769โˆ’9,2091.00
13 Dec 2019160,978โˆ’22,5781.00
29 Nov 2019183,556+110,4571.00
15 Nov 201973,099โˆ’11,3171.00
31 Oct 201984,416โˆ’191,4291.00
15 Oct 2019275,845+20,6431.00
30 Sep 2019255,202+206,8121.00
13 Sep 201948,390โˆ’147,8621.00
30 Aug 2019196,252โˆ’74,6011.00
15 Aug 2019270,853โˆ’219,6111.00
31 Jul 2019490,464+312,6091.00
15 Jul 2019177,855โˆ’62,4461.00
28 Jun 2019240,301โˆ’111,4141.00
14 Jun 2019351,715+198,0731.00
31 May 2019153,642+109,0031.00
15 May 201944,639โˆ’7,8791.00
30 Apr 201952,518+14,1551.00
15 Apr 201938,363โˆ’407,6491.00
29 Mar 2019446,012+235,1961.00
15 Mar 2019210,816+143,7541.00
28 Feb 201967,062โˆ’45,8491.00
15 Feb 2019112,911+39,2381.00
31 Jan 201973,673โˆ’80,5471.00
15 Jan 2019154,220โˆ’27,5501.00
31 Dec 2018181,770โˆ’183,6351.00
14 Dec 2018365,405+321,3801.00
30 Nov 201844,025โˆ’27,2081.00
15 Nov 201871,233โˆ’166,0821.00
31 Oct 2018237,315สณโˆ’46,2161.00
15 Oct 2018283,531+65,6691.00
28 Sep 2018217,862+19,6341.00
14 Sep 2018198,228+36,0081.00
31 Aug 2018162,220โˆ’33,3751.00
15 Aug 2018195,595โˆ’21,1931.00
31 Jul 2018216,788+4,4491.00
13 Jul 2018212,339สณโˆ’26,4221.00
29 Jun 2018238,761+98,1011.00
15 Jun 2018140,660โˆ’233,0241.00
31 May 2018373,684+185,3261.00
15 May 2018188,358+30,3811.00
30 Apr 2018157,977โˆ’51,0651.00
13 Apr 2018209,042+79,8751.00
29 Mar 2018129,167โˆ’235,2781.00
15 Mar 2018364,445+219,0531.00
28 Feb 2018145,392โˆ’208,7751.00
15 Feb 2018354,167+125,5441.00
31 Jan 2018228,623โˆ’692,9411.00
12 Jan 2018921,564สณ+784,4521.11
29 Dec 2017137,112โ€“1.00

Scroll inside the table for earlier settlements, back to 29 Dec 2017.

Questions

Frequently asked questions

What is VMBS's short interest?
2,818,981 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 258,667 from the previous settlement.
Why is there no percentage for VMBS?
Because no defensible share count exists to divide by: no SEC filer maps to the symbol (funds, notes, preferreds, warrants and foreign listings). No SEC filer maps to this symbol in EDGAR's ticker file. That is the normal case for funds, exchange-traded notes, preferred shares, warrants, units and foreign listings, none of which file a share count we could divide by.
What is VMBS's days to cover?
1.74 days for settlement date 15 Sep 2026: FINRA's own short interest ratio, the reported shares short divided by average daily trading volume, published in the same file and shown verbatim. We hold no volume data ourselves.
Is this the short float?
No. This page shows FINRA's share count only. Short float divides that count by the public float, and short interest as we publish it elsewhere divides it by shares outstanding from SEC filings. Neither denominator is available for this line, so neither ratio is shown.
How often does this update?
FINRA member firms report short positions as of the 15th and the last business day of each month, and FINRA publishes the consolidated figures about nine business days later. We ingest each file the day it appears and re-read recent settlements for revisions.

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