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HowShorted

ALC short interest NYSE

Alcon Inc. Ordinary Shares. 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
17,487,148
vs previous settlement
+2,920,530 (+20.0%)
days to cover
11.25
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for ALC: 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
85,771
11 Sep 2026
Highest in window
333,459
5 Jan 2026
Days with a balance
146
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Alcon Inc. Ordinary Shares 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 333K shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 202617,487,148+2,920,53011.25
31 Aug 202614,566,618+2,700,92312.57
14 Aug 202611,865,695โˆ’1,792,4765.35
31 Jul 202613,658,171+652,6116.06
15 Jul 202613,005,560+2,620,2295.36
30 Jun 202610,385,331+1,763,1115.46
15 Jun 20268,622,220+2,984,6404.98
29 May 20265,637,580โˆ’339,6592.14
15 May 20265,977,239+609,3232.04
30 Apr 20265,367,916+221,1823.83
15 Apr 20265,146,734+250,5173.64
31 Mar 20264,896,217+75,2583.31
13 Mar 20264,820,959โˆ’476,2943.21
27 Feb 20265,297,253โˆ’1,147,3242.46
13 Feb 20266,444,577โˆ’1,132,2742.94
30 Jan 20267,576,851+866,1405.62
15 Jan 20266,710,711โˆ’240,1744.85
31 Dec 20256,950,885+427,0337.35
15 Dec 20256,523,852+359,4264.19
28 Nov 20256,164,426สณ+777,7543.28
14 Nov 20255,386,672โˆ’1,414,5151.81
31 Oct 20256,801,187+802,0984.05
15 Oct 20255,999,089+591,4402.24
30 Sep 20255,407,649โˆ’903,8602.87
15 Sep 20256,311,509+913,4903.17
29 Aug 20255,398,019+396,4971.75
15 Aug 20255,001,522โˆ’2,038,5402.60
31 Jul 20257,040,062+150,5144.74
15 Jul 20256,889,548+733,6014.42
30 Jun 20256,155,947+930,1704.17
13 Jun 20255,225,777+500,5363.23
30 May 20254,725,241โˆ’293,5892.61
15 May 20255,018,830+918,9222.75
30 Apr 20254,099,908โˆ’231,2113.42
15 Apr 20254,331,119+1,563,4141.87
31 Mar 20252,767,705+697,5241.95
14 Mar 20252,070,181โˆ’1,430,0601.31
28 Feb 20253,500,241+384,7561.85
14 Feb 20253,115,485โˆ’93,2741.90
31 Jan 20253,208,759โˆ’54,4322.32
15 Jan 20253,263,191+195,6483.84
31 Dec 20243,067,543โˆ’119,8404.07
13 Dec 20243,187,383+430,2564.26
29 Nov 20242,757,127โˆ’375,0063.17
15 Nov 20243,132,133โˆ’31,9712.30
31 Oct 20243,164,104โˆ’269,0156.11
15 Oct 20243,433,119+338,7706.01
30 Sep 20243,094,349โˆ’162,7025.81
13 Sep 20243,257,051+269,9013.28
30 Aug 20242,987,150+180,0963.68
15 Aug 20242,807,054โˆ’205,0613.57
31 Jul 20243,012,115โˆ’746,3343.16
15 Jul 20243,758,449โˆ’1,7964.48
28 Jun 20243,760,245โˆ’363,5525.44
14 Jun 20244,123,797+123,0505.37
31 May 20244,000,747+23,5805.00
15 May 20243,977,167+715,0084.13
30 Apr 20243,262,159โˆ’66,1393.72
15 Apr 20243,328,298โˆ’990,8803.88
28 Mar 20244,319,178+363,7275.95
15 Mar 20243,955,451โˆ’525,7463.86
29 Feb 20244,481,197+439,9913.70
15 Feb 20244,041,206โˆ’488,1625.24
31 Jan 20244,529,368+725,8804.75
12 Jan 20243,803,488โˆ’424,1544.72
29 Dec 20234,227,642+364,6698.53
15 Dec 20233,862,973+315,1624.62
30 Nov 20233,547,811+739,3773.75
15 Nov 20232,808,434+450,4102.61
31 Oct 20232,358,024โˆ’538,2212.97
13 Oct 20232,896,245โˆ’84,2103.36
29 Sep 20232,980,455+297,6964.83
15 Sep 20232,682,759โˆ’140,9474.56
31 Aug 20232,823,706โˆ’1,434,7363.49
15 Aug 20234,258,442+760,4376.38
31 Jul 20233,498,005โˆ’357,3867.10
14 Jul 20233,855,391+393,8016.19
30 Jun 20233,461,590โˆ’459,8875.58
15 Jun 20233,921,477โˆ’596,2365.87
31 May 20234,517,713โˆ’1,103,1704.33
15 May 20235,620,883โˆ’2,012,3144.44
28 Apr 20237,633,197+329,2688.30
14 Apr 20237,303,929+1,120,6565.48
31 Mar 20236,183,273โˆ’54,1063.28
15 Mar 20236,237,379+513,5035.81
28 Feb 20235,723,876โˆ’353,4846.17
15 Feb 20236,077,360+110,7717.75
31 Jan 20235,966,589+198,0767.89
13 Jan 20235,768,513+360,2616.85
30 Dec 20225,408,252โˆ’422,3377.43
15 Dec 20225,830,589+209,6656.29
30 Nov 20225,620,924+251,3265.18
15 Nov 20225,369,598โˆ’114,8934.41
31 Oct 20225,484,491+830,6136.60
14 Oct 20224,653,878+184,9135.01
30 Sep 20224,468,965โˆ’435,2143.38
15 Sep 20224,904,179+273,6166.92
31 Aug 20224,630,563+188,7106.12
15 Aug 20224,441,853โˆ’421,1754.37
29 Jul 20224,863,028โˆ’34,8329.04
15 Jul 20224,897,860โˆ’1,031,4057.50
30 Jun 20225,929,265โˆ’255,5988.07
15 Jun 20226,184,863โˆ’394,1136.77
31 May 20226,578,976โˆ’95,7237.74
13 May 20226,674,699โˆ’2,052,3634.65
29 Apr 20228,727,062+1,077,3359.09
14 Apr 20227,649,727โˆ’271,3829.34
31 Mar 20227,921,109+319,65211.12
15 Mar 20227,601,457โˆ’507,99610.10
28 Feb 20228,109,453โˆ’38,0159.16
15 Feb 20228,147,468โˆ’57,92210.18
31 Jan 20228,205,390+1,306,5679.06
14 Jan 20226,898,823โˆ’737,7778.24
31 Dec 20217,636,600+739,31510.24
15 Dec 20216,897,285โˆ’120,71711.27
30 Nov 20217,018,002+82,52111.40
15 Nov 20216,935,481โˆ’84,4108.31
29 Oct 20217,019,891โˆ’358,36114.74
15 Oct 20217,378,252โˆ’76,41012.25
30 Sep 20217,454,662+186,93112.25
15 Sep 20217,267,731+344,2519.59
31 Aug 20216,923,480โˆ’241,6725.49
13 Aug 20217,165,152+496,6128.94
30 Jul 20216,668,540+240,92311.07
15 Jul 20216,427,617+56,5539.10
30 Jun 20216,371,064+420,5819.13
15 Jun 20215,950,483สณ+255,4618.26
28 May 20215,695,022โˆ’33,1086.28
14 May 20215,728,130โˆ’1,703,6986.07
30 Apr 20217,431,828+1,065,72418.61
15 Apr 20216,366,104+344,27612.43
31 Mar 20216,021,828+538,6437.36
15 Mar 20215,483,185+1,420,9125.06
26 Feb 20214,062,273+21,5103.22
12 Feb 20214,040,763โˆ’954,7565.92
29 Jan 20214,995,519โˆ’1,204,2354.03
15 Jan 20216,199,754+56,0547.57
31 Dec 20206,143,700+148,31812.62
15 Dec 20205,995,382โˆ’316,5968.66
30 Nov 20206,311,978+688,8588.78
13 Nov 20205,623,120+1,294,8464.16
30 Oct 20204,328,274โˆ’589,0284.69
15 Oct 20204,917,302โˆ’154,9035.04
30 Sep 20205,072,205โˆ’549,3773.75
15 Sep 20205,621,582โˆ’1,097,2084.79
31 Aug 20206,718,790โˆ’236,9204.22
14 Aug 20206,955,710โˆ’636,21111.65
31 Jul 20207,591,921+608,3628.55
15 Jul 20206,983,559+403,8706.08
30 Jun 20206,579,689+406,1485.71
15 Jun 20206,173,541+508,5504.84
29 May 20205,664,991โˆ’1,100,9894.49
15 May 20206,765,980สณ+1,308,2544.31
30 Apr 20205,457,726โˆ’687,0563.95
15 Apr 20206,144,782โˆ’1,232,6595.00
31 Mar 20207,377,441โˆ’26,8413.40
13 Mar 20207,404,282+4,517,8284.36
28 Feb 20202,886,454+444,2652.36
14 Feb 20202,442,189+33,2344.59
31 Jan 20202,408,955โˆ’129,3552.99
15 Jan 20202,538,310+278,2712.86
31 Dec 20192,260,039+283,3023.00
13 Dec 20191,976,737โˆ’37,7221.43
29 Nov 20192,014,459โˆ’46,6221.00
15 Nov 20192,061,081+147,2571.77
31 Oct 20191,913,824โˆ’313,7252.54
15 Oct 20192,227,549โˆ’290,5562.34
30 Sep 20192,518,105โˆ’1,041,1892.89
13 Sep 20193,559,294โˆ’51,6623.38
30 Aug 20193,610,956+1,965,8872.07
15 Aug 20191,645,069+144,3962.46
31 Jul 20191,500,673+291,4461.82
15 Jul 20191,209,227โˆ’357,2021.52
28 Jun 20191,566,429+395,1611.43
14 Jun 20191,171,268โˆ’931,3931.60
31 May 20192,102,661+198,4642.48
15 May 20191,904,197โˆ’167,2111.15
30 Apr 20192,071,408โˆ’2,036,4281.00
15 Apr 20194,107,836โ€“1.48

Scroll inside the table for earlier settlements, back to 15 Apr 2019.

Questions

Frequently asked questions

What is ALC's short interest?
17,487,148 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 2,920,530 from the previous settlement.
Why is there no percentage for ALC?
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 ALC's days to cover?
11.25 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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