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HowShorted

ARKX short interest Cboe BZX

ARK Space & Defense Innovation. 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
153,259
vs previous settlement
โˆ’167,792 (-52.3%)
days to cover
1.00
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for ARKX: 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
24,000
11 Sep 2026
Highest in window
512,572
23 Jan 2026
Days with a balance
79
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for ARK Space & Defense Innovation 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 513K shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 2026153,259โˆ’167,7921.00
31 Aug 2026321,051โˆ’387,0421.00
14 Aug 2026708,093โˆ’316,1991.09
31 Jul 20261,024,292+246,2121.45
15 Jul 2026778,080+151,4691.00
30 Jun 2026626,611+86,7021.00
15 Jun 2026539,909โˆ’75,6941.00
29 May 2026615,603+195,9531.00
15 May 2026419,650+220,5631.00
30 Apr 2026199,087โˆ’925,0071.00
15 Apr 20261,124,094+899,5061.63
31 Mar 2026224,588โˆ’915,3651.00
13 Mar 20261,139,953+426,3632.12
27 Feb 2026713,590+305,5371.16
13 Feb 2026408,053โˆ’78,1001.00
30 Jan 2026486,153โˆ’1,012,6691.00
15 Jan 20261,498,822+745,9421.17
31 Dec 2025752,880โˆ’199,0091.52
15 Dec 2025951,889+672,8942.76
28 Nov 2025278,995+43,0351.00
14 Nov 2025235,960โˆ’35,1631.00
31 Oct 2025271,123+65,5231.00
15 Oct 2025205,600โˆ’162,4091.00
30 Sep 2025368,009+50,8471.49
15 Sep 2025317,162โˆ’48,2381.82
29 Aug 2025365,400+23,3501.30
15 Aug 2025342,050โˆ’174,5491.00
31 Jul 2025516,599โˆ’436,8881.05
15 Jul 2025953,487+606,8864.52
30 Jun 2025346,601+26,9322.06
13 Jun 2025319,669+137,5452.13
30 May 2025182,124โˆ’39,6342.09
15 May 2025221,758+22,0772.93
30 Apr 2025199,681โˆ’11,3773.64
15 Apr 2025211,058+65,8442.98
31 Mar 2025145,214+5,2852.40
14 Mar 2025139,929+95,1461.00
28 Feb 202544,783โˆ’155,3521.00
14 Feb 2025200,135+67,8541.31
31 Jan 2025132,281+65,5671.00
15 Jan 202566,714โˆ’41,2471.00
31 Dec 2024107,961โˆ’2,1841.00
13 Dec 2024110,145โˆ’94,3651.00
29 Nov 2024204,510+40,8651.00
15 Nov 2024163,645+58,5101.28
31 Oct 2024105,135โˆ’19,5802.61
15 Oct 2024124,715+1,1733.90
30 Sep 2024123,542โˆ’6,6023.89
13 Sep 2024130,144+2,9663.67
30 Aug 2024127,178โˆ’10,5653.42
15 Aug 2024137,743โˆ’114,6172.90
31 Jul 2024252,360โˆ’26,9975.71
15 Jul 2024279,357+33,4444.82
28 Jun 2024245,913+111,8104.04
14 Jun 2024134,103+3,7622.05
31 May 2024130,341โˆ’34,8981.50
15 May 2024165,239+50,5713.04
30 Apr 2024114,668+66,8981.57
15 Apr 202447,770โˆ’36,6491.00
28 Mar 202484,419+64,0091.22
15 Mar 202420,410โˆ’4,8431.00
29 Feb 202425,253+15,9301.00
15 Feb 20249,323โˆ’9831.00
31 Jan 202410,306โˆ’1961.00
12 Jan 202410,502โˆ’1,0461.00
29 Dec 202311,548+1,9541.00
15 Dec 20239,594โˆ’4,6421.00
30 Nov 202314,236+1,6001.00
15 Nov 202312,636โˆ’1,0751.00
31 Oct 202313,711+1,0831.00
13 Oct 202312,628โˆ’133,0311.00
29 Sep 2023145,659+12,8753.26
15 Sep 2023132,784+50,0264.19
31 Aug 202382,758โˆ’204,2141.89
15 Aug 2023286,972โˆ’42,4965.36
31 Jul 2023329,468โˆ’45,2795.48
14 Jul 2023374,747+117,1896.73
30 Jun 2023257,558โˆ’134,1134.36
15 Jun 2023391,671โˆ’4,4178.90
31 May 2023396,088โˆ’26,1828.61
15 May 2023422,270+367,0318.71
28 Apr 202355,239+2,1001.50
14 Apr 202353,139โˆ’189,4141.03
31 Mar 2023242,553+181,4536.19
15 Mar 202361,100โˆ’3,2031.00
28 Feb 202364,303โˆ’2,7701.50
15 Feb 202367,073โˆ’123,8191.01
31 Jan 2023190,892โˆ’137,7013.71
13 Jan 2023328,593โˆ’83,8556.16
30 Dec 2022412,448โˆ’237,2392.71
15 Dec 2022649,687+6388.36
30 Nov 2022649,049โˆ’6,57415.16
15 Nov 2022655,623+32,9367.51
31 Oct 2022622,687โˆ’64810.18
14 Oct 2022623,335+17,8278.04
30 Sep 2022605,508โˆ’31,1148.18
15 Sep 2022636,622โˆ’85,9428.29
31 Aug 2022722,564โˆ’239,7559.56
15 Aug 2022962,319+120,27511.55
29 Jul 2022842,044+38,1618.91
15 Jul 2022803,883โˆ’75,4676.13
30 Jun 2022879,350+86,7236.76
15 Jun 2022792,627โˆ’129,5905.55
31 May 2022922,217+213.84
13 May 2022922,196+95,5832.60
29 Apr 2022826,613โˆ’226,0804.93
14 Apr 20221,052,693+286,7487.98
31 Mar 2022765,945โˆ’410,5065.53
15 Mar 20221,176,451+93,2656.56
28 Feb 20221,083,186โˆ’25,1164.12
15 Feb 20221,108,302โˆ’19,4995.10
31 Jan 20221,127,801โˆ’83,0992.65
14 Jan 20221,210,900+372,0024.21
31 Dec 2021838,898โˆ’44,2673.28
15 Dec 2021883,165โˆ’397,8862.77
30 Nov 20211,281,051+719,9894.81
15 Nov 2021561,062+16,3871.69
29 Oct 2021544,675โˆ’144,3582.12
15 Oct 2021689,033+114,4292.80
30 Sep 2021574,604+58,1342.21
15 Sep 2021516,470+9,2671.79
31 Aug 2021507,203+3581.64
13 Aug 2021506,845โˆ’25,7032.33
30 Jul 2021532,548โˆ’130,9731.79
15 Jul 2021663,521+130,9851.81
30 Jun 2021532,536+48,9351.23
15 Jun 2021483,601สณโˆ’14,6961.28
28 May 2021498,297+20,3711.30
14 May 2021477,926โˆ’1,077,9821.00
30 Apr 20211,555,908+977,4841.68
15 Apr 2021578,424+578,3241.00
31 Mar 2021100โ€“1.00

Scroll inside the table for earlier settlements, back to 31 Mar 2021.

Questions

Frequently asked questions

What is ARKX's short interest?
153,259 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 167,792 from the previous settlement.
Why is there no percentage for ARKX?
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 ARKX's days to cover?
1.00 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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