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HowShorted

ABCL short interest Nasdaq Global Market

AbCellera Biologics Inc. Commo. FINRA's reported shares short for this symbol, twice a month by settlement date, shown as the regulator publishes them. No percentage is shown: an SEC filer exists but no defensible share count is available yet.

Shares short
33,930,287
vs previous settlement
โˆ’822,421 (-2.4%)
days to cover
9.63
Settlement date
15 Sep 2026

Shares short over time

Aggregate net short position time series for ABCL 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 ABCL days to cover

Fails to deliver

The SEC's fails-to-deliver figure for ABCL: 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.

Last balance on file
1,537
9 Sep 2026
Highest in window
3,059,974
6 Feb 2026
Days with a balance
197
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for AbCellera Biologics Inc. Commo 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 3.1M shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 202633,930,287โˆ’822,4219.63
31 Aug 202634,752,708โˆ’6,588,1545.18
14 Aug 202641,340,862โˆ’6,977,6543.04
31 Jul 202648,318,516+3,208,2489.66
15 Jul 202645,110,268โˆ’3,453,8586.97
30 Jun 202648,564,126+3,654,5695.33
15 Jun 202644,909,557โˆ’2,210,3467.14
29 May 202647,119,903+4,169,0865.58
15 May 202642,950,817โˆ’1,506,8264.24
30 Apr 202644,457,643โˆ’3,242,2475.98
15 Apr 202647,699,890โˆ’2,725,58816.98
31 Mar 202650,425,478+26,26522.71
13 Mar 202650,399,213โˆ’921,17415.78
27 Feb 202651,320,387+1,104,94814.20
13 Feb 202650,215,439+1,313,06810.28
30 Jan 202648,902,371+1,902,32911.36
15 Jan 202647,000,042โˆ’1,266,1728.87
31 Dec 202548,266,214โˆ’2,238,91914.13
15 Dec 202550,505,133โˆ’337,47617.15
28 Nov 202550,842,609โˆ’3,601,20211.11
14 Nov 202554,443,811โˆ’717,3559.23
31 Oct 202555,161,166+1,960,11413.76
15 Oct 202553,201,052+7,059,1137.05
30 Sep 202546,141,939+1,766,6478.89
15 Sep 202544,375,292+1,142,53011.28
29 Aug 202543,232,762+1,448,35511.70
15 Aug 202541,784,407+1,978,5136.72
31 Jul 202539,805,894+4,089,2065.67
15 Jul 202535,716,688+5,300,3375.76
30 Jun 202530,416,351+3,897,9214.07
13 Jun 202526,518,430+3,679,4363.35
30 May 202522,838,994+324,0139.36
15 May 202522,514,981โˆ’495,2524.12
30 Apr 202523,010,233โˆ’769,4696.29
15 Apr 202523,779,702+154,8195.05
31 Mar 202523,624,883+837,5277.13
14 Mar 202522,787,356+2,888,1715.19
28 Feb 202519,899,185โˆ’196,9243.69
14 Feb 202520,096,109+1,666,3965.52
31 Jan 202518,429,713+1,171,5104.67
15 Jan 202517,258,203+684,9904.52
31 Dec 202416,573,213+685,7636.38
13 Dec 202415,887,450โˆ’364,6746.32
29 Nov 202416,252,124+319,0377.36
15 Nov 202415,933,087โˆ’708,2915.05
31 Oct 202416,641,378โˆ’711,7238.85
15 Oct 202417,353,101+291,67811.14
30 Sep 202417,061,423+225,8329.62
13 Sep 202416,835,591โˆ’715,9947.27
30 Aug 202417,551,585โˆ’616,5598.20
15 Aug 202418,168,144+752,56512.79
31 Jul 202417,415,579โˆ’350,00915.15
15 Jul 202417,765,588โˆ’1,017,5389.56
28 Jun 202418,783,126โˆ’936,4817.85
14 Jun 202419,719,607+1,302,04112.02
31 May 202418,417,566โˆ’1,330,82713.02
15 May 202419,748,393โˆ’3,544,78913.23
30 Apr 202423,293,182+201,33418.71
15 Apr 202423,091,848โˆ’499,01222.73
28 Mar 202423,590,860+551,77325.18
15 Mar 202423,039,087+254,36215.90
29 Feb 202422,784,725โˆ’29,57910.36
15 Feb 202422,814,304โˆ’1,674,32117.00
31 Jan 202424,488,625โˆ’579,99616.36
12 Jan 202425,068,621โˆ’514,21922.37
29 Dec 202325,582,840โˆ’839,58119.39
15 Dec 202326,422,421โˆ’573,94815.66
30 Nov 202326,996,369โˆ’469,18616.05
15 Nov 202327,465,555โˆ’342,49718.29
31 Oct 202327,808,052+1,439,68819.95
13 Oct 202326,368,364+649,35015.63
29 Sep 202325,719,014+426,36514.73
15 Sep 202325,292,649โˆ’1,101,11015.67
31 Aug 202326,393,759โˆ’1,152,39218.05
15 Aug 202327,546,151+1,134,27410.50
31 Jul 202326,411,877+1,240,68915.18
14 Jul 202325,171,188โˆ’71,98510.17
30 Jun 202325,243,173โˆ’3,712,2214.27
15 Jun 202328,955,394+2,985,87911.20
31 May 202325,969,515โˆ’655,1327.19
15 May 202326,624,647+2,095,53310.82
28 Apr 202324,529,114+936,37016.58
14 Apr 202323,592,744+34,23416.95
31 Mar 202323,558,510+510,11017.35
15 Mar 202323,048,400+874,14913.45
28 Feb 202322,174,251+1,837,6678.85
15 Feb 202320,336,584+1,208,34313.52
31 Jan 202319,128,241โˆ’551,63916.41
13 Jan 202319,679,880+4,531,9939.71
30 Dec 202215,147,887โˆ’206,5558.92
15 Dec 202215,354,442โˆ’1,160,1826.08
30 Nov 202216,514,624โˆ’1,285,5259.96
15 Nov 202217,800,149โˆ’430,0626.68
31 Oct 202218,230,211โˆ’1,303,28511.00
14 Oct 202219,533,496+123,04011.89
30 Sep 202219,410,456โˆ’2,210,35410.99
15 Sep 202221,620,810+1,566,19718.25
31 Aug 202220,054,613+711,24910.80
15 Aug 202219,343,364+200,7587.43
29 Jul 202219,142,606โˆ’87,46513.49
15 Jul 202219,230,071+33,8389.59
30 Jun 202219,196,233+6,929,9873.41
15 Jun 202212,266,246+1,497,8854.38
31 May 202210,768,361โˆ’1,181,5996.78
13 May 202211,949,960+233,8574.05
29 Apr 202211,716,103โˆ’1,171,23111.17
14 Apr 202212,887,334+854,6959.10
31 Mar 202212,032,639+631,8317.07
15 Mar 202211,400,808+891,4266.43
28 Feb 202210,509,382โˆ’1,372,9935.00
15 Feb 202211,882,375โˆ’302,7214.82
31 Jan 202212,185,096โˆ’464,1894.77
14 Jan 202212,649,285+2,076,0086.43
31 Dec 202110,573,277+938,6424.92
15 Dec 20219,634,635โˆ’1,581,9694.77
30 Nov 202111,216,604+760,9616.97
15 Nov 202110,455,643โˆ’151,1134.57
29 Oct 202110,606,756+514,4389.57
15 Oct 202110,092,318+1,976,4384.51
30 Sep 20218,115,880+257,9751.88
15 Sep 20217,857,905+121,5483.16
31 Aug 20217,736,357โˆ’2,756,6694.26
13 Aug 202110,493,026+1,940,2354.57
30 Jul 20218,552,791+27,5366.08
15 Jul 20218,525,255+141,5054.23
30 Jun 20218,383,750+1,265,7232.97
15 Jun 20217,118,027สณโˆ’464,5123.34
28 May 20217,582,539โˆ’844,83910.37
14 May 20218,427,378+2,041,9029.13
30 Apr 20216,385,476+484,2239.46
15 Apr 20215,901,253โˆ’297,1403.79
31 Mar 20216,198,393+2,171,1935.52
15 Mar 20214,027,200+1,790,0794.67
26 Feb 20212,237,121โˆ’673,3653.59
12 Feb 20212,910,486โˆ’1,728,8354.25
29 Jan 20214,639,321โˆ’305,4516.88
15 Jan 20214,944,772+1,311,1293.86
31 Dec 20203,633,643+2,681,4733.89
15 Dec 2020952,170โ€“1.00

Scroll inside the table for earlier settlements, back to 15 Dec 2020.

Questions

Frequently asked questions

What is ABCL's short interest?
33,930,287 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 822,421 from the previous settlement.
Why is there no percentage for ABCL?
Because no defensible share count exists to divide by: an SEC filer exists but no defensible share count is available yet. The symbol maps to an SEC filer, but its share count cannot be used yet. A newly listed company needs two cover-page counts on file before the first is trusted; a split or an unexplained jump pauses publication until a fresh SEC count corroborates it; a secondary share class publishes under the company's primary line; and a foreign filer's short count is in depositary-share units. This page upgrades to a percentage automatically once a defensible count exists.
What is ABCL's days to cover?
9.63 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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