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HowShorted

ADCT short interest NYSE

ADC Therapeutics SA. 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
5,390,567
vs previous settlement
โˆ’895,397 (-14.2%)
days to cover
3.85
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for ADCT: 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
5,985
3 Sep 2026
Highest in window
1,388,213
5 Jun 2026
Days with a balance
50
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for ADC Therapeutics SA 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 1.4M shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20265,390,567โˆ’895,3973.85
31 Aug 20266,285,964+110,2612.84
14 Aug 20266,175,703+1,083,5666.30
31 Jul 20265,092,137โˆ’442,0056.11
15 Jul 20265,534,142โˆ’459,5314.01
30 Jun 20265,993,673โˆ’11,2703.40
15 Jun 20266,004,943โˆ’62,9141.26
29 May 20266,067,857+320,8377.76
15 May 20265,747,020+272,8473.95
30 Apr 20265,474,173+329,4695.77
15 Apr 20265,144,704+242,7615.62
31 Mar 20264,901,943+611,7446.27
13 Mar 20264,290,199+181,7473.93
27 Feb 20264,108,452โˆ’253,5014.46
13 Feb 20264,361,953โˆ’59,3876.83
30 Jan 20264,421,340+587,6865.80
15 Jan 20263,833,654+260,0845.35
31 Dec 20253,573,570โˆ’3,200,1693.24
15 Dec 20256,773,739+745,8022.58
28 Nov 20256,027,937+160,7828.66
14 Nov 20255,867,155โˆ’613,3167.27
31 Oct 20256,480,471+105,9868.98
15 Oct 20256,374,485+1,076,1404.87
30 Sep 20255,298,345+1,229,2934.58
15 Sep 20254,069,052โˆ’74,3047.18
29 Aug 20254,143,356โˆ’371,3565.78
15 Aug 20254,514,712โˆ’1,164,4176.74
31 Jul 20255,679,129+214,5688.51
15 Jul 20255,464,561+558,3798.30
30 Jun 20254,906,182+377,9634.27
13 Jun 20254,528,219+261,0124.99
30 May 20254,267,207โˆ’61,8254.85
15 May 20254,329,032โˆ’139,2029.00
30 Apr 20254,468,234โˆ’63,94418.27
15 Apr 20254,532,178+245,06311.75
31 Mar 20254,287,115โˆ’277,58611.69
14 Mar 20254,564,701โˆ’731,17613.20
28 Feb 20255,295,877+424,92614.94
14 Feb 20254,870,951+13,6779.63
31 Jan 20254,857,274โˆ’321,6039.57
15 Jan 20255,178,877+319,7737.70
31 Dec 20244,859,104+736,4424.72
13 Dec 20244,122,662+1,108,0571.65
29 Nov 20243,014,605โˆ’149,8556.70
15 Nov 20243,164,460โˆ’3,1026.80
31 Oct 20243,167,562โˆ’340,64710.82
15 Oct 20243,508,209โˆ’49,0259.37
30 Sep 20243,557,234+416,2168.86
13 Sep 20243,141,018+427,0409.44
30 Aug 20242,713,978โˆ’252,6947.88
15 Aug 20242,966,672โˆ’30,0527.04
31 Jul 20242,996,724โˆ’189,3707.76
15 Jul 20243,186,094+2,366,5784.42
28 Jun 2024819,516โˆ’2,9331.00
14 Jun 2024822,449โˆ’160,0701.00
31 May 2024982,519โˆ’20,3971.67
15 May 20241,002,916+145,3091.29
30 Apr 2024857,607โˆ’30,5242.16
15 Apr 2024888,131โˆ’104,9501.74
28 Mar 2024993,081+53,3362.08
15 Mar 2024939,745+70,9071.41
29 Feb 2024868,838โˆ’561,2231.09
15 Feb 20241,430,061โˆ’1,497,7761.34
31 Jan 20242,927,837โˆ’430,9413.22
12 Jan 20243,358,778โˆ’360,5843.34
29 Dec 20233,719,362โˆ’331,0165.51
15 Dec 20234,050,378โˆ’37,0713.10
30 Nov 20234,087,449+462,74414.26
15 Nov 20233,624,705โˆ’346,1497.90
31 Oct 20233,970,854โˆ’1,234,00614.22
13 Oct 20235,204,860โˆ’81,86830.20
29 Sep 20235,286,728+161,51418.61
15 Sep 20235,125,214+18,64713.93
31 Aug 20235,106,567โˆ’209,18626.20
15 Aug 20235,315,753โˆ’841,06714.84
31 Jul 20236,156,820+235,86610.90
14 Jul 20235,920,954โˆ’228,7954.81
30 Jun 20236,149,749+71,50718.52
15 Jun 20236,078,242+7,66323.92
31 May 20236,070,579โˆ’86,47723.38
15 May 20236,157,056โˆ’1,275,97510.74
28 Apr 20237,433,031+108,91619.03
14 Apr 20237,324,115+385,0689.34
31 Mar 20236,939,047โˆ’207,9118.29
15 Mar 20237,146,958+361,2409.45
28 Feb 20236,785,718+71,09819.41
15 Feb 20236,714,620โˆ’295,26617.58
31 Jan 20237,009,886โˆ’50,37122.60
13 Jan 20237,060,257โˆ’495,9505.82
30 Dec 20227,556,207+341,4103.33
15 Dec 20227,214,797โˆ’39,84913.65
30 Nov 20227,254,646+1,020,82917.45
15 Nov 20226,233,817โˆ’273,4647.69
31 Oct 20226,507,281+19,01528.93
14 Oct 20226,488,266+104,62730.58
30 Sep 20226,383,639โˆ’34,28126.58
15 Sep 20226,417,920โˆ’199,01426.86
31 Aug 20226,616,934โˆ’157,59236.36
15 Aug 20226,774,526โˆ’119,37222.59
29 Jul 20226,893,898+356,78321.97
15 Jul 20226,537,115โˆ’191,61317.29
30 Jun 20226,728,728+814,93220.02
15 Jun 20225,913,796+155,11325.04
31 May 20225,758,683โˆ’153,50724.77
13 May 20225,912,190โˆ’124,29215.28
29 Apr 20226,036,482+218,82948.68
14 Apr 20225,817,653+428,15129.15
31 Mar 20225,389,502+337,21030.25
15 Mar 20225,052,292+293,14832.66
28 Feb 20224,759,144+42,93533.26
15 Feb 20224,716,209โˆ’53,65937.69
31 Jan 20224,769,868โˆ’628,29517.64
14 Jan 20225,398,163โˆ’262,51931.15
31 Dec 20215,660,682โˆ’87,34735.83
15 Dec 20215,748,029โˆ’100,59837.66
30 Nov 20215,848,627โˆ’315,55746.21
15 Nov 20216,164,184+399,54723.91
29 Oct 20215,764,637+26,07145.73
15 Oct 20215,738,566โˆ’95,14349.32
30 Sep 20215,833,709โˆ’236,14131.84
15 Sep 20216,069,850+52,83921.44
31 Aug 20216,017,011+282,60327.57
13 Aug 20215,734,408+325,69914.25
30 Jul 20215,408,709โˆ’406,56422.34
15 Jul 20215,815,273โˆ’1,451,25135.45
30 Jun 20217,266,524โˆ’159,95124.64
15 Jun 20217,426,475สณ+275,88321.50
28 May 20217,150,592+107,91229.38
14 May 20217,042,680+33,41723.62
30 Apr 20217,009,263+797,25415.28
15 Apr 20216,212,009+452,89826.23
31 Mar 20215,759,111+1,129,4258.96
15 Mar 20214,629,686+194,16221.68
26 Feb 20214,435,524+430,99927.89
12 Feb 20214,004,525+62,68413.90
29 Jan 20213,941,841+311,36518.72
15 Jan 20213,630,476+598,79421.51
31 Dec 20203,031,682+281,21914.90
15 Dec 20202,750,463+500,08512.11
30 Nov 20202,250,378+553,0676.97
13 Nov 20201,697,311+122,39911.89
30 Oct 20201,574,912+474,41811.31
15 Oct 20201,100,494โˆ’194,9714.26
30 Sep 20201,295,465+121,2993.93
15 Sep 20201,174,166+116,19414.98
31 Aug 20201,057,972โˆ’73,2159.89
14 Aug 20201,131,187+505,8855.31
31 Jul 2020625,302+168,6654.04
15 Jul 2020456,637โˆ’562,6842.95
30 Jun 20201,019,321+93,4749.15
15 Jun 2020925,847โˆ’389,5374.64
29 May 20201,315,384โ€“3.11

Scroll inside the table for earlier settlements, back to 29 May 2020.

Questions

Frequently asked questions

What is ADCT's short interest?
5,390,567 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 895,397 from the previous settlement.
Why is there no percentage for ADCT?
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 ADCT's days to cover?
3.85 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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