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HowShorted

ASR short interest NYSE

Grupo Aeroportuario del Surest. 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
271,134
vs previous settlement
+46,253 (+20.6%)
days to cover
5.85
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for ASR: 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
284
14 Sep 2026
Highest in window
12,900
31 Mar 2026
Days with a balance
50
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Grupo Aeroportuario del Surest 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 13K shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 2026271,134+46,2535.85
31 Aug 2026224,881+4,0005.08
14 Aug 2026220,881+55,8693.37
31 Jul 2026165,012+45,9852.58
15 Jul 2026119,027+5,1491.67
30 Jun 2026113,878+3,8101.65
15 Jun 2026110,068โˆ’18,0601.74
29 May 2026128,128โˆ’37,1901.34
15 May 2026165,318+62.13
30 Apr 2026165,312+13,2782.52
15 Apr 2026152,034โˆ’10,1692.36
31 Mar 2026162,203โˆ’7,4131.80
13 Mar 2026169,616+7,9102.83
27 Feb 2026161,706+18,0762.04
13 Feb 2026143,630+17,4142.25
30 Jan 2026126,216+8,4961.81
15 Jan 2026117,720โˆ’2,7513.92
31 Dec 2025120,471+10,1303.19
15 Dec 2025110,341โˆ’20,8542.18
28 Nov 2025131,195+31,2451.94
14 Nov 202599,950โˆ’9,1392.12
31 Oct 2025109,089โˆ’12,8521.38
15 Oct 2025121,941+12,5601.67
30 Sep 2025109,381โˆ’59,8151.10
15 Sep 2025169,196+38,7131.65
29 Aug 2025130,483+49,1061.38
15 Aug 202581,377โˆ’64,4021.19
31 Jul 2025145,779+13,3802.40
15 Jul 2025132,399+6,5761.26
30 Jun 2025125,823โˆ’2,2241.10
13 Jun 2025128,047+32,6401.17
30 May 202595,407โˆ’31,5811.72
15 May 2025126,988โˆ’5,3302.02
30 Apr 2025132,318โˆ’10,2261.95
15 Apr 2025142,544+32,9022.00
31 Mar 2025109,642+6,9742.14
14 Mar 2025102,668โˆ’4,5892.37
28 Feb 2025107,257โˆ’25,1582.46
14 Feb 2025132,415+26,2782.21
31 Jan 2025106,137+8,0182.35
15 Jan 202598,119โˆ’24,9901.57
31 Dec 2024123,109โˆ’9832.36
13 Dec 2024124,092โˆ’27,4172.71
29 Nov 2024151,509โˆ’8,4433.02
15 Nov 2024159,952+25,2624.18
31 Oct 2024134,690โˆ’12,2212.88
15 Oct 2024146,911โˆ’2,4713.81
30 Sep 2024149,382โˆ’19,3294.06
13 Sep 2024168,711+13,4313.95
30 Aug 2024155,280+15,0293.93
15 Aug 2024140,251+12,3744.14
31 Jul 2024127,877โˆ’12,2114.27
15 Jul 2024140,088+28,6843.39
28 Jun 2024111,404+8,9452.07
14 Jun 2024102,459+10,8061.98
31 May 202491,653โˆ’39,0663.23
15 May 2024130,719โˆ’22,7433.83
30 Apr 2024153,462+22,3523.69
15 Apr 2024131,110+6,7943.35
28 Mar 2024124,316+7554.27
15 Mar 2024123,561+14,7722.73
29 Feb 2024108,789+3,5521.92
15 Feb 2024105,237+2,2111.65
31 Jan 2024103,026+16,6341.51
12 Jan 202486,392+16,5262.23
29 Dec 202369,866โˆ’29,7631.66
15 Dec 202399,629โˆ’18,0541.33
30 Nov 2023117,683โˆ’40,0963.13
15 Nov 2023157,779+1,7233.70
31 Oct 2023156,056โˆ’4212.32
13 Oct 2023156,477+26,1161.20
29 Sep 2023130,361+6852.42
15 Sep 2023129,676โˆ’19,9431.40
31 Aug 2023149,619+23,0273.32
15 Aug 2023126,592+22,2982.25
31 Jul 2023104,294+3,0952.77
14 Jul 2023101,199+16,8803.30
30 Jun 202384,319โˆ’4,3132.73
15 Jun 202388,632โˆ’3,6002.42
31 May 202392,232โˆ’36,2121.73
15 May 2023128,444+11,4892.84
28 Apr 2023116,955โˆ’13,8431.00
14 Apr 2023130,798+13,2211.96
31 Mar 2023117,577โˆ’14,8991.98
15 Mar 2023132,476+64,7782.62
28 Feb 202367,698โˆ’3,1511.08
15 Feb 202370,849+18,9411.18
31 Jan 202351,908โˆ’2,0781.00
13 Jan 202353,986โˆ’57,6421.00
30 Dec 2022111,628+17,2131.80
15 Dec 202294,415โˆ’5,7911.32
30 Nov 2022100,206โˆ’30,3851.35
15 Nov 2022130,591+1,5332.58
31 Oct 2022129,058โˆ’7,5222.95
14 Oct 2022136,580โˆ’24,1362.35
30 Sep 2022160,716โˆ’3,2873.64
15 Sep 2022164,003+15,5983.06
31 Aug 2022148,405+17,4082.67
15 Aug 2022130,997+21,6571.71
29 Jul 2022109,340+4,2502.05
15 Jul 2022105,090โˆ’19,0351.79
30 Jun 2022124,125โˆ’8,0792.00
15 Jun 2022132,204+16,0451.82
31 May 2022116,159โˆ’4,9941.35
13 May 2022121,153+23,8601.73
29 Apr 202297,293+19,9011.13
14 Apr 202277,392โˆ’7,2242.26
31 Mar 202284,616+17,9562.51
15 Mar 202266,660+4,2681.74
28 Feb 202262,392+2,3691.38
15 Feb 202260,023โˆ’13,0992.38
31 Jan 202273,122โˆ’49,2531.85
14 Jan 2022122,375โˆ’25,5195.41
31 Dec 2021147,894+9,6095.67
15 Dec 2021138,285+46,0823.85
30 Nov 202192,203โˆ’5,7612.59
15 Nov 202197,964+11,5513.20
29 Oct 202186,413โˆ’64,5244.08
15 Oct 2021150,937+6,7025.92
30 Sep 2021144,235+12,8875.59
15 Sep 2021131,348โˆ’8,3325.15
31 Aug 2021139,680+11,5258.00
13 Aug 2021128,155โˆ’1,0528.79
30 Jul 2021129,207โˆ’38,3654.65
15 Jul 2021167,572โˆ’9,9217.62
30 Jun 2021177,493โˆ’41,9914.28
15 Jun 2021219,484สณ+11,9342.52
28 May 2021207,550+42,3918.76
14 May 2021165,159โˆ’29,8107.91
30 Apr 2021194,969โˆ’1,4206.62
15 Apr 2021196,389โˆ’26,7194.60
31 Mar 2021223,108+36,2983.74
15 Mar 2021186,810โˆ’7,3893.16
26 Feb 2021194,199+16,3494.17
12 Feb 2021177,850+7,7702.67
29 Jan 2021170,080+6,3714.39
15 Jan 2021163,709โˆ’2,5963.60
31 Dec 2020166,305+25,6012.55
15 Dec 2020140,704โˆ’1,7792.13
30 Nov 2020142,483โˆ’34,4163.25
13 Nov 2020176,899+17,7153.06
30 Oct 2020159,184+47,4822.83
15 Oct 2020111,702+10,0322.01
30 Sep 2020101,670โˆ’14,3021.58
15 Sep 2020115,972โˆ’3,8361.63
31 Aug 2020119,808+15,5832.80
14 Aug 2020104,225โˆ’6,0831.40
31 Jul 2020110,308โˆ’19,7461.75
15 Jul 2020130,054+11,6922.29
30 Jun 2020118,362โˆ’29,2601.47
15 Jun 2020147,622+4,7411.23
29 May 2020142,881โˆ’7,7711.22
15 May 2020150,652สณโˆ’7,7651.75
30 Apr 2020158,417+22,0581.56
15 Apr 2020136,359+12,0421.75
31 Mar 2020124,317+40,1001.41
13 Mar 202084,217+21,1161.11
28 Feb 202063,101+14,5631.00
14 Feb 202048,538โˆ’5851.68
31 Jan 202049,123โˆ’6,0871.55
15 Jan 202055,210+1,2901.59
31 Dec 201953,920โˆ’21,8201.47
13 Dec 201975,740โˆ’39,0501.35
29 Nov 2019114,790+9,6762.37
15 Nov 2019105,114โˆ’8,0311.82
31 Oct 2019113,145+4,3911.86
15 Oct 2019108,754+47,6661.84
30 Sep 201961,088+27,3441.00
13 Sep 201933,744+8,7901.00
30 Aug 201924,954โˆ’74,7781.00
15 Aug 201999,732โˆ’10,1081.20
31 Jul 2019109,840+3,7871.88
15 Jul 2019106,053+6,7531.82
28 Jun 201999,300+30,8391.41
14 Jun 201968,461โˆ’13,4381.65
31 May 201981,899+32,4071.23
15 May 201949,492+8441.00
30 Apr 201948,648โˆ’13,7461.00
15 Apr 201962,394+5,5021.08
29 Mar 201956,892+3,7361.00
15 Mar 201953,156โˆ’26,9991.00
28 Feb 201980,155โˆ’67,1791.00
15 Feb 2019147,334โˆ’43,2942.18
31 Jan 2019190,628+19,3234.55
15 Jan 2019171,305+13,9513.04
31 Dec 2018157,354+4,8822.53
14 Dec 2018152,472+33,8502.04
30 Nov 2018118,622โˆ’66,6962.30
15 Nov 2018185,318+10,9312.82
31 Oct 2018174,387โˆ’23,4233.15
15 Oct 2018197,810โˆ’8,4256.28
28 Sep 2018206,235+7,4975.02
14 Sep 2018198,738โˆ’6,9084.10
31 Aug 2018205,646โˆ’4,8273.99
15 Aug 2018210,473+35,7615.75
31 Jul 2018174,712+28,4954.31
13 Jul 2018146,217+1,6344.43
29 Jun 2018144,583+1783.95
15 Jun 2018144,405โˆ’5,7593.88
31 May 2018150,164+44,3993.29
15 May 2018105,765โˆ’44,4002.17
30 Apr 2018150,165โˆ’17,4073.07
13 Apr 2018167,572โˆ’99,2982.57
29 Mar 2018266,870+29,6796.10
15 Mar 2018237,191+20,7244.40
28 Feb 2018216,467+17,2553.20
15 Feb 2018199,212โˆ’10,4463.94
31 Jan 2018209,658+4,2753.99
12 Jan 2018205,383+26,0862.81
29 Dec 2017179,297โ€“4.06

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

Questions

Frequently asked questions

What is ASR's short interest?
271,134 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 46,253 from the previous settlement.
Why is there no percentage for ASR?
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 ASR's days to cover?
5.85 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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