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HowShorted

HACK short interest NYSE Arca

Amplify Cybersecurity ETF. FINRA's reported shares short for this symbol, twice a month by settlement date, shown as the regulator publishes them. No percentage is shown: exchange-traded product: its share count floats with creation and redemption.

Shares short
1,044,540
vs previous settlement
+740,127 (+243.1%)
days to cover
3.08
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for HACK: 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
1,844
11 Sep 2026
Highest in window
137,631
13 Aug 2026
Days with a balance
61
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Amplify Cybersecurity ETF 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 138K shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20261,044,540+740,1273.08
31 Aug 2026304,413+99,5811.04
14 Aug 2026204,832+74,3641.00
31 Jul 2026130,468โˆ’152,1691.00
15 Jul 2026282,637+103,5031.07
30 Jun 2026179,134+74,8281.20
15 Jun 2026104,306+48,5841.00
29 May 202655,722+7,5861.00
15 May 202648,136โˆ’3,4911.00
30 Apr 202651,627โˆ’2,2071.00
15 Apr 202653,834โˆ’91,3681.00
31 Mar 2026145,202+72,6471.46
13 Mar 202672,555+27,4381.00
27 Feb 202645,117+3,5101.00
13 Feb 202641,607โˆ’71,7741.00
30 Jan 2026113,381+57,3421.00
15 Jan 202656,039โˆ’1,0111.00
31 Dec 202557,050โˆ’9,4521.00
15 Dec 202566,502+13,5371.19
28 Nov 202552,965โˆ’17,9801.00
14 Nov 202570,945โˆ’8,4771.00
31 Oct 202579,422โˆ’46,6701.11
15 Oct 2025126,092+56,5051.69
30 Sep 202569,587โˆ’15,8521.03
15 Sep 202585,439โˆ’11,8891.06
29 Aug 202597,328+3,9761.17
15 Aug 202593,352โˆ’52,1471.00
31 Jul 2025145,499+25,6291.32
15 Jul 2025119,870โˆ’73,2961.00
30 Jun 2025193,166โˆ’6,3611.17
13 Jun 2025199,527โˆ’276,3651.79
30 May 2025475,892+310,4043.80
15 May 2025165,488โˆ’156,6031.23
30 Apr 2025322,091+6,7421.70
15 Apr 2025315,349+242,8431.56
31 Mar 202572,506+28,7441.00
14 Mar 202543,762โˆ’81,5971.00
28 Feb 2025125,359โˆ’28,5931.00
14 Feb 2025153,952โˆ’278,9341.00
31 Jan 2025432,886+261,9492.62
15 Jan 2025170,937+88,6371.41
31 Dec 202482,300โˆ’51,8091.00
13 Dec 2024134,109โˆ’37,4131.66
29 Nov 2024171,522+12,7012.65
15 Nov 2024158,821+104,9851.96
31 Oct 202453,836โˆ’75,0811.00
15 Oct 2024128,917โˆ’20,1372.12
30 Sep 2024149,054+63,1002.24
13 Sep 202485,954โˆ’28,1661.43
30 Aug 2024114,120+25,0041.00
15 Aug 202489,116โˆ’22,7571.02
31 Jul 2024111,873โˆ’78,1911.35
15 Jul 2024190,064+117,8871.90
28 Jun 202472,177โˆ’55,8341.00
14 Jun 2024128,011+51,7941.13
31 May 202476,217โˆ’30,7461.12
15 May 2024106,963+25,1651.00
30 Apr 202481,798โˆ’72,4201.32
15 Apr 2024154,218+68,3831.00
28 Mar 202485,835โˆ’2351.00
15 Mar 202486,070โˆ’30,1461.00
29 Feb 2024116,216โˆ’1,5521.00
15 Feb 2024117,768โˆ’165,8781.00
31 Jan 2024283,646โˆ’3,1061.72
12 Jan 2024286,752+211,8822.10
29 Dec 202374,870โˆ’42,0441.02
15 Dec 2023116,914+61,1221.58
30 Nov 202355,792+9,3231.01
15 Nov 202346,469โˆ’21,8421.00
31 Oct 202368,311โˆ’43,7181.00
13 Oct 2023112,029+52,4721.54
29 Sep 202359,557โˆ’116,1471.13
15 Sep 2023175,704+51,7712.17
31 Aug 2023123,933โˆ’262,4761.71
15 Aug 2023386,409+103,2456.39
31 Jul 2023283,164+199,0234.43
14 Jul 202384,141โˆ’23,4981.21
30 Jun 2023107,639+22,8741.42
15 Jun 202384,765โˆ’244,0601.00
31 May 2023328,825+201,9893.48
15 May 2023126,836โˆ’106,0251.34
28 Apr 2023232,861+56,5113.02
14 Apr 2023176,350+41,6492.62
31 Mar 2023134,701+5,0121.70
15 Mar 2023129,689+45,3881.38
28 Feb 202384,301โˆ’1,6541.04
15 Feb 202385,955โˆ’120,4061.00
31 Jan 2023206,361+64,4011.55
13 Jan 2023141,960โˆ’63,5901.44
30 Dec 2022205,550+83,8051.38
15 Dec 2022121,745โˆ’94,1221.16
30 Nov 2022215,867+58,2472.75
15 Nov 2022157,620โˆ’300,8161.36
31 Oct 2022458,436+175,1865.10
14 Oct 2022283,250โˆ’19,6633.10
30 Sep 2022302,913+86,2762.73
15 Sep 2022216,637โˆ’34,7831.35
31 Aug 2022251,420โˆ’104,8802.05
15 Aug 2022356,300+103,3852.79
29 Jul 2022252,915+5,4442.39
15 Jul 2022247,471+8,7841.94
30 Jun 2022238,687โˆ’94,6851.18
15 Jun 2022333,372โˆ’35,7121.77
31 May 2022369,084โˆ’361,5892.09
13 May 2022730,673+110,5822.31
29 Apr 2022620,091+370,5813.00
14 Apr 2022249,510+15,1161.62
31 Mar 2022234,394โˆ’6221.01
15 Mar 2022235,016โˆ’186,1981.00
28 Feb 2022421,214โˆ’35,0111.02
15 Feb 2022456,225+110,0763.03
31 Jan 2022346,149โˆ’110,6681.36
14 Jan 2022456,817+308,7661.92
31 Dec 2021148,051โˆ’506,1701.06
15 Dec 2021654,221+472,5293.27
30 Nov 2021181,692โˆ’546,5261.13
15 Nov 2021728,218+389,8603.02
29 Oct 2021338,358+142,7721.83
15 Oct 2021195,586โˆ’471,3501.15
30 Sep 2021666,936+134,9443.47
15 Sep 2021531,992+91,4893.37
31 Aug 2021440,503+30,3252.57
13 Aug 2021410,178+90,6023.11
30 Jul 2021319,576+113,7061.95
15 Jul 2021205,870โˆ’76,2271.00
30 Jun 2021282,097โˆ’173,7841.74
15 Jun 2021455,881สณโˆ’46,0651.86
28 May 2021501,946โˆ’66,3352.79
14 May 2021568,281โˆ’156,1273.04
30 Apr 2021724,408โˆ’7,7055.49
15 Apr 2021732,113+205,0043.96
31 Mar 2021527,109โˆ’280,5044.32
15 Mar 2021807,613+314,7053.86
26 Feb 2021492,908+91,0851.49
12 Feb 2021401,823+18,3491.72
29 Jan 2021383,474โˆ’88,6471.44
15 Jan 2021472,121โˆ’170,6051.57
31 Dec 2020642,726+186,5861.63
15 Dec 2020456,140+8752.27
30 Nov 2020455,265+187,1334.03
13 Nov 2020268,132โˆ’35,6431.33
30 Oct 2020303,775โˆ’115,2882.28
15 Oct 2020419,063โˆ’121,0681.65
30 Sep 2020540,131โˆ’11,0834.47
15 Sep 2020551,214โˆ’64,4452.62
31 Aug 2020615,659+109,3933.82
14 Aug 2020506,266+10,8314.06
31 Jul 2020495,435โˆ’18,3773.12
15 Jul 2020513,812+33,0182.65
30 Jun 2020480,794+55,4912.92
15 Jun 2020425,303+15,2292.55
29 May 2020410,074+9832.33
15 May 2020409,091โˆ’6,7762.66
30 Apr 2020415,867+16,7572.44
15 Apr 2020399,110โˆ’52,0762.47
31 Mar 2020451,186+14,2231.45
13 Mar 2020436,963โˆ’12,3901.34
28 Feb 2020449,353โˆ’138,1491.17
14 Feb 2020587,502+192,6173.85
31 Jan 2020394,885โˆ’24,8521.61
15 Jan 2020419,737+65,3971.16
31 Dec 2019354,340โˆ’59,4762.01
13 Dec 2019413,816+45,3233.12
29 Nov 2019368,493โˆ’3,3643.48
15 Nov 2019371,857โˆ’19,6172.65
31 Oct 2019391,474โˆ’152,4632.70
15 Oct 2019543,937โˆ’49,2593.28
30 Sep 2019593,196โˆ’18,6384.14
13 Sep 2019611,834โˆ’78,5054.27
30 Aug 2019690,339+91,8563.20
15 Aug 2019598,483โˆ’48,4692.54
31 Jul 2019646,952โˆ’18,1134.61
15 Jul 2019665,065+144,6403.86
28 Jun 2019520,425โˆ’4,4923.49
14 Jun 2019524,917+33,9872.57
31 May 2019490,930+16,4402.01
15 May 2019474,490โˆ’57,6082.18
30 Apr 2019532,098โˆ’97,7302.90
15 Apr 2019629,828+93,0612.45
29 Mar 2019536,767+124,2881.61
15 Mar 2019412,479โˆ’37,9871.81
28 Feb 2019450,466โˆ’53,8882.25
15 Feb 2019504,354โˆ’50,0161.99
31 Jan 2019554,370โˆ’34,6282.85
15 Jan 2019588,998+68,9512.26
31 Dec 2018520,047โˆ’105,8251.41
14 Dec 2018625,872+68,9302.76
30 Nov 2018556,942โˆ’54,7572.41
15 Nov 2018611,699โˆ’38,6472.51
31 Oct 2018650,346โˆ’14,3992.05
15 Oct 2018664,745+123,7341.12
28 Sep 2018541,011โˆ’65,2741.69
14 Sep 2018606,285โˆ’86,4212.06
31 Aug 2018692,706+10,0162.18
15 Aug 2018682,690โˆ’618,2242.18
31 Jul 20181,300,914+70,6313.92
13 Jul 20181,230,283+30,1562.85
29 Jun 20181,200,127+489,3952.84
15 Jun 2018710,732+95,5231.47
31 May 2018615,209โˆ’18,7881.65
15 May 2018633,997+53,2941.73
30 Apr 2018580,703โˆ’3,7011.25
13 Apr 2018584,404โˆ’30,7741.87
29 Mar 2018615,178+100,3182.03
15 Mar 2018514,860โˆ’185,6281.36
28 Feb 2018700,488+209,5252.61
15 Feb 2018490,963โˆ’80,5451.61
31 Jan 2018571,508โˆ’45,6602.88
12 Jan 2018617,168+73,1311.64
29 Dec 2017544,037โ€“2.37

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

Questions

Frequently asked questions

What is HACK's short interest?
1,044,540 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 740,127 from the previous settlement.
Why is there no percentage for HACK?
Because no defensible share count exists to divide by: exchange-traded product: its share count floats with creation and redemption. An exchange-traded product's share count changes every day as units are created and redeemed, so no filing gives a stable count to divide by. FINRA's shares-short figure is exact; a percentage of it would not be.
What is HACK's days to cover?
3.08 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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