Skip to content
HowShorted

SCO short interest NYSE Arca

ProShares UltraShort Bloomberg. 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
1,660,594
vs previous settlement
โˆ’171,705 (-9.4%)
days to cover
1.00
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for SCO: 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
30
14 Sep 2026
Highest in window
1,773,552
12 Mar 2026
Days with a balance
154
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for ProShares UltraShort Bloomberg 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 1.8M shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20261,660,594โˆ’171,7051.00
31 Aug 20261,832,299+580,1301.00
14 Aug 20261,252,169โˆ’607,8181.00
31 Jul 20261,859,987โˆ’256,9221.00
15 Jul 20262,116,909+371,7831.00
30 Jun 20261,745,126+273,6641.00
15 Jun 20261,471,462โˆ’4,514,7821.00
29 May 20265,986,244โˆ’7,322,5221.00
15 May 202613,308,766โˆ’1,862,4931.00
30 Apr 202615,171,259+14,358,5231.00
15 Apr 2026812,736โˆ’3,080,0711.00
31 Mar 20263,892,807โˆ’3,315,3991.00
13 Mar 20267,208,206+6,737,8061.00
27 Feb 2026470,400+303,9381.00
13 Feb 2026166,462โˆ’452,2991.00
30 Jan 2026618,761โˆ’22,1411.00
15 Jan 2026640,902+335,2911.00
31 Dec 2025305,611โˆ’188,3781.00
15 Dec 2025493,989โˆ’103,6001.00
28 Nov 2025597,589โˆ’3591.00
14 Nov 2025597,948โˆ’31,8641.00
31 Oct 2025629,812โˆ’57,5581.00
15 Oct 2025687,370โˆ’60,3851.00
30 Sep 2025747,755+174,1701.00
15 Sep 2025573,585โˆ’199,9881.00
29 Aug 2025773,573โˆ’8,5671.00
15 Aug 2025782,140โˆ’666,3051.00
31 Jul 20251,448,445+726,9771.00
15 Jul 2025721,468โˆ’545,5181.00
30 Jun 20251,266,986+508,0031.00
13 Jun 2025758,983+167,9591.00
30 May 2025591,024โˆ’10,7151.00
15 May 2025601,739โˆ’77,2371.00
30 Apr 2025678,976+151,1161.00
15 Apr 2025527,860+91,4291.00
31 Mar 2025436,431+70,7281.00
14 Mar 2025365,703โˆ’11,2991.00
28 Feb 2025377,002+155,8111.00
14 Feb 2025221,191โˆ’130,4531.00
31 Jan 2025351,644โˆ’927,7921.00
15 Jan 20251,279,436+652,5341.00
31 Dec 2024626,902โˆ’41,4631.00
13 Dec 2024668,365+328,2671.00
29 Nov 2024340,098+76,7781.00
15 Nov 2024263,320+6,2191.00
31 Oct 2024257,101+27,7491.00
15 Oct 2024229,352โˆ’92,5711.00
30 Sep 2024321,923+28,8751.00
13 Sep 2024293,048+63,5351.00
30 Aug 2024229,513+32,7191.00
15 Aug 2024196,794โˆ’83,3041.00
31 Jul 2024280,098+11,4261.00
15 Jul 2024268,672โˆ’152,7471.00
28 Jun 2024421,419+85,3981.00
14 Jun 2024336,021+12,0271.00
31 May 2024323,994+10,9681.00
15 May 2024313,026+89,3341.00
30 Apr 2024223,692+63,8611.00
15 Apr 2024159,831โˆ’102,8001.00
28 Mar 2024262,631โˆ’66,2521.00
15 Mar 2024328,883+60,6541.00
29 Feb 2024268,229โˆ’287,9601.00
15 Feb 2024556,189+301,8081.00
31 Jan 2024254,381+13,3021.00
12 Jan 2024241,079โˆ’52,9081.00
29 Dec 2023293,987โˆ’88,3871.00
15 Dec 2023382,374+67,2651.00
30 Nov 2023315,109โˆ’4,8791.00
15 Nov 2023319,988สณ+85,4011.00
31 Oct 2023234,587โˆ’134,3741.00
13 Oct 2023368,961โˆ’182,8211.00
29 Sep 2023551,782+195,6291.00
15 Sep 2023356,153+115,9351.00
31 Aug 2023240,218โˆ’342,3561.00
15 Aug 2023582,574+166,9071.00
31 Jul 2023415,667โˆ’280,0201.00
14 Jul 2023695,687+217,3171.00
30 Jun 2023478,370โˆ’109,5681.00
15 Jun 2023587,938+348,8371.00
31 May 2023239,101+59,9121.00
15 May 2023179,189โˆ’4,8261.00
28 Apr 2023184,015โˆ’497,0501.00
14 Apr 2023681,065+414,4731.00
31 Mar 2023266,592โˆ’142,5331.00
15 Mar 2023409,125+92,1981.00
28 Feb 2023316,927โˆ’19,5871.00
15 Feb 2023336,514+41,4311.00
31 Jan 2023295,083โˆ’133,1541.00
13 Jan 2023428,237โˆ’21,7191.00
30 Dec 2022449,956โˆ’82,9001.00
15 Dec 2022532,856+104,3271.00
30 Nov 2022428,529โˆ’1,3681.00
15 Nov 2022429,897โˆ’11,2071.00
31 Oct 2022441,104+32,0761.00
14 Oct 2022409,028โˆ’65,0181.00
30 Sep 2022474,046+149,4601.00
15 Sep 2022324,586โˆ’588,8921.00
31 Aug 2022913,478+81,6341.00
15 Aug 2022831,844โˆ’98,8731.00
29 Jul 2022930,717+688,8571.00
15 Jul 2022241,860+36,7321.00
30 Jun 2022205,128โˆ’2,8511.00
15 Jun 2022207,979โˆ’202,5331.00
31 May 2022410,512โˆ’205,5971.00
13 May 2022616,109โˆ’3,5991.00
29 Apr 2022619,708โˆ’885,6991.00
14 Apr 20221,505,407โˆ’708,8901.00
31 Mar 20222,214,297โˆ’249,1221.00
15 Mar 20222,463,419+2,055,4651.00
28 Feb 2022407,954โˆ’226,4111.00
15 Feb 2022634,365+221,7961.00
31 Jan 2022412,569โˆ’92,8121.00
14 Jan 2022505,381+108,6561.00
31 Dec 2021396,725+89,8111.00
15 Dec 2021306,914โˆ’10,0861.00
30 Nov 2021317,000โˆ’9,1751.00
15 Nov 2021326,175โˆ’116,8901.00
29 Oct 2021443,065โˆ’52,6861.00
15 Oct 2021495,751+146,7451.00
30 Sep 2021349,006โˆ’32,3061.00
15 Sep 2021381,312+61,3771.00
31 Aug 2021319,935โˆ’25,9941.00
13 Aug 2021345,929+82,3671.00
30 Jul 2021263,562โˆ’52,0761.00
15 Jul 2021315,638+56,8631.00
30 Jun 2021258,775โˆ’76,2651.00
15 Jun 2021335,040สณ+81,8591.00
28 May 2021253,181โˆ’1,071,0971.00
14 May 20211,324,278+221,4661.00
30 Apr 20211,102,812โˆ’393,7651.00
15 Apr 20211,496,577+290,6141.00
31 Mar 20211,205,963+253,4231.00
15 Mar 2021952,540โˆ’468,4411.00
26 Feb 20211,420,981+517,9951.00
12 Feb 2021902,986+104,6201.00
29 Jan 2021798,366+28,1151.00
15 Jan 2021770,251+143,0091.00
31 Dec 2020627,242โˆ’44,2271.00
15 Dec 2020671,469โˆ’61,6451.00
30 Nov 2020733,114+37,7741.00
13 Nov 2020695,340+218,1321.00
30 Oct 2020477,208+78,8291.00
15 Oct 2020398,379+20,8251.00
30 Sep 2020377,554โˆ’80,8601.00
15 Sep 2020458,414+38,2521.00
31 Aug 2020420,162+16,8351.00
14 Aug 2020403,327โˆ’117,0811.00
31 Jul 2020520,408+208,8341.00
15 Jul 2020311,574โˆ’105,7311.00
30 Jun 2020417,305โˆ’153,4961.00
15 Jun 2020570,801+100,8191.00
29 May 2020469,982+78,9631.00
15 May 2020391,019+14,9511.00
30 Apr 2020376,068โˆ’228,9131.00
15 Apr 2020604,981+208,0071.00
31 Mar 2020396,974+206,5231.00
13 Mar 2020190,451โˆ’461,5381.00
28 Feb 2020651,989+127,3861.00
14 Feb 2020524,603โˆ’240,1171.00
31 Jan 2020764,720+72,1641.00
15 Jan 2020692,556โˆ’107,1331.00
31 Dec 2019799,689โˆ’306,9281.00
13 Dec 20191,106,617+285,5331.00
29 Nov 2019821,084+107,0251.00
15 Nov 2019714,059+125,6671.00
31 Oct 2019588,392+73,2461.00
15 Oct 2019515,146โˆ’18,2791.00
30 Sep 2019533,425+32,6611.00
13 Sep 2019500,764โˆ’93,8761.00
30 Aug 2019594,640โˆ’206,2891.00
15 Aug 2019800,929+229,6391.00
31 Jul 2019571,290โˆ’35,0831.00
15 Jul 2019606,373+153,1571.00
28 Jun 2019453,216+123,7621.00
14 Jun 2019329,454โˆ’97,0451.00
31 May 2019426,499โˆ’79,1381.00
15 May 2019505,637+108,8771.00
30 Apr 2019396,760โˆ’229,0691.00
15 Apr 2019625,829+27,3391.00
29 Mar 2019598,490+35,3231.00
15 Mar 2019563,167+73,1331.00
28 Feb 2019490,034+71,4961.00
15 Feb 2019418,538โˆ’37,2891.00
31 Jan 2019455,827+159,5161.00
15 Jan 2019296,311โˆ’105,6511.00
31 Dec 2018401,962โˆ’10,2971.00
14 Dec 2018412,259โˆ’124,3791.00
30 Nov 2018536,638+15,5161.00
15 Nov 2018521,122+47,3941.00
31 Oct 2018473,728โˆ’432,5601.00
15 Oct 2018906,288โˆ’243,3831.00
28 Sep 20181,149,671+19,0791.00
14 Sep 20181,130,592+159,8781.00
31 Aug 2018970,714+123,2381.00
15 Aug 2018847,476+11,4961.00
31 Jul 2018835,980+79,6191.00
13 Jul 2018756,361โˆ’387,9171.00
29 Jun 20181,144,278โˆ’101,6201.00
15 Jun 20181,245,898+301,4961.00
31 May 2018944,402+130,6341.00
15 May 2018813,768โˆ’106,6661.00
30 Apr 2018920,434+194,0011.00
13 Apr 2018726,433โˆ’36,5141.00
29 Mar 2018762,947+83,1711.00
15 Mar 2018679,776+74,9941.00
28 Feb 2018604,782+32,7861.00
15 Feb 2018571,996โˆ’145,6481.00
31 Jan 2018717,644โˆ’682,3211.00
12 Jan 20181,399,965+524,1991.00
29 Dec 2017875,766โ€“1.00

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

Questions

Frequently asked questions

What is SCO's short interest?
1,660,594 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 171,705 from the previous settlement.
Why is there no percentage for SCO?
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 SCO'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.

Ranked companies with a percentage: most shorted US stocks. Other funds by shares short and days to cover: most shorted ETFs. Other symbols with counts only: shares short without a percentage. Browse by name: US companies A to Z.