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HowShorted

SSO short interest NYSE Arca

ProShares Ultra S&P500. 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
1,388,852
vs previous settlement
+205,577 (+17.4%)
days to cover
1.00
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for SSO: 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
6
14 Sep 2026
Highest in window
1,813,282
12 Jun 2026
Days with a balance
134
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for ProShares Ultra S&P500 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 SSO, newest first. สณ marks a figure FINRA itself flagged as revised.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20261,388,852+205,5771.00
31 Aug 20261,183,275โˆ’656,9501.00
14 Aug 20261,840,225+629,3661.00
31 Jul 20261,210,859+77,0041.00
15 Jul 20261,133,855โˆ’621,7201.00
30 Jun 20261,755,575โˆ’1,804,6121.00
15 Jun 20263,560,187+2,513,6861.00
29 May 20261,046,501โˆ’232,9811.00
15 May 20261,279,482โˆ’567,0341.00
30 Apr 20261,846,516โˆ’992,0331.00
15 Apr 20262,838,549+827,5351.00
31 Mar 20262,011,014+300,5311.00
13 Mar 20261,710,483โˆ’220,8691.00
27 Feb 20261,931,352โˆ’219,1821.00
13 Feb 20262,150,534+1,363,9871.00
30 Jan 2026786,547โˆ’1,150,1571.00
15 Jan 20261,936,704+430,5821.00
31 Dec 20251,506,122โˆ’335,6491.00
15 Dec 20251,841,771โˆ’421,1741.00
28 Nov 20252,262,945+1,306,3181.00
14 Nov 2025956,627+78,7021.00
31 Oct 2025877,925โˆ’474,0321.00
15 Oct 20251,351,957โˆ’285,6801.00
30 Sep 20251,637,637โˆ’417,3961.00
15 Sep 20252,055,033+289,2361.10
29 Aug 20251,765,797+286,4831.00
15 Aug 20251,479,314โˆ’1,805,7401.00
31 Jul 20253,285,054+1,862,8211.55
15 Jul 20251,422,233โˆ’97,2451.00
30 Jun 20251,519,478โˆ’142,5691.00
13 Jun 20251,662,047โˆ’79,5201.00
30 May 20251,741,567โˆ’46,5211.00
15 May 20251,788,088+172,7041.00
30 Apr 20251,615,384+297,7031.00
15 Apr 20251,317,681โˆ’95,9441.00
31 Mar 20251,413,625โˆ’726,5121.00
14 Mar 20252,140,137โˆ’175,2511.00
28 Feb 20252,315,388โˆ’958,8011.00
14 Feb 20253,274,189+1,594,4511.62
31 Jan 20251,679,738+352,6511.00
15 Jan 20251,327,087+143,7251.00
31 Dec 20241,183,362โˆ’249,8761.00
13 Dec 20241,433,238+179,1731.01
29 Nov 20241,254,065+144,2561.00
15 Nov 20241,109,809โˆ’416,4291.00
31 Oct 20241,526,238โˆ’884,1601.00
15 Oct 20242,410,398+1,017,2381.07
30 Sep 20241,393,160โˆ’72,8771.00
13 Sep 20241,466,037+15,9671.00
30 Aug 20241,450,070โˆ’249,9081.00
15 Aug 20241,699,978โˆ’1,241,7551.00
31 Jul 20242,941,733โˆ’26,9021.00
15 Jul 20242,968,635+1,297,3281.43
28 Jun 20241,671,307โˆ’114,6081.00
14 Jun 20241,785,915โˆ’296,7341.00
31 May 20242,082,649โˆ’857,5271.00
15 May 20242,940,176+628,0571.13
30 Apr 20242,312,119+986,1881.00
15 Apr 20241,325,931โˆ’1,975,1711.00
28 Mar 20243,301,102+1,483,1061.36
15 Mar 20241,817,996+574,0641.00
29 Feb 20241,243,932โˆ’515,5471.00
15 Feb 20241,759,479+564,2891.00
31 Jan 20241,195,190โˆ’2,222,8711.00
12 Jan 20243,418,061+2,306,6601.00
29 Dec 20231,111,401โˆ’1,091,1101.00
15 Dec 20232,202,511โˆ’446,2851.00
30 Nov 20232,648,796+519,9481.02
15 Nov 20232,128,848สณ+794,2461.00
31 Oct 20231,334,602โˆ’613,4911.00
13 Oct 20231,948,093+148,8851.00
29 Sep 20231,799,208โˆ’250,3191.00
15 Sep 20232,049,527+977,2181.00
31 Aug 20231,072,309+353,2681.00
15 Aug 2023719,041โˆ’305,0031.00
31 Jul 20231,024,044โˆ’900,2741.00
14 Jul 20231,924,318+563,0171.00
30 Jun 20231,361,301+473,8301.00
15 Jun 2023887,471โˆ’58,4851.00
31 May 2023945,956+159,4621.00
15 May 2023786,494+107,0171.00
28 Apr 2023679,477โˆ’469,9181.00
14 Apr 20231,149,395+188,1561.00
31 Mar 2023961,239โˆ’502,1091.00
15 Mar 20231,463,348+595,4651.00
28 Feb 2023867,883+239,6651.00
15 Feb 2023628,218โˆ’92,8921.00
31 Jan 2023721,110โˆ’459,1831.00
13 Jan 20231,180,293โˆ’10,9361.00
30 Dec 20221,191,229โˆ’60,6161.00
15 Dec 20221,251,845+370,8711.00
30 Nov 2022880,974โˆ’214,3461.00
15 Nov 20221,095,320+237,7381.00
31 Oct 2022857,582โˆ’723,8171.00
14 Oct 20221,581,399โˆ’206,7471.00
30 Sep 20221,788,146+765,7371.00
15 Sep 20221,022,409+365,0491.00
31 Aug 2022657,360โˆ’91,8181.00
15 Aug 2022749,178โˆ’336,8081.00
29 Jul 20221,085,986+123,1641.00
15 Jul 2022962,822โˆ’20,2941.00
30 Jun 2022983,116โˆ’321,1091.00
15 Jun 20221,304,225+395,6361.00
31 May 2022908,589+63,3291.00
13 May 2022845,260+301,0261.00
29 Apr 2022544,234+107,1851.00
14 Apr 2022437,049โˆ’460,4931.00
31 Mar 2022897,542+58,1691.00
15 Mar 2022839,373+121,9581.00
28 Feb 2022717,415+258,2391.00
15 Feb 2022459,176+23,5871.00
31 Jan 2022435,589โˆ’494,6201.00
14 Jan 2022930,209+168,2741.00
31 Dec 2021761,935โˆ’56,9061.00
15 Dec 2021818,841โˆ’207,7151.00
30 Nov 20211,026,556+239,0541.00
15 Nov 2021787,502+30,4911.00
29 Oct 2021757,011โˆ’58,6381.00
15 Oct 2021815,649โˆ’85,3311.00
30 Sep 2021900,980+1,0491.00
15 Sep 2021899,931โˆ’4,3591.00
31 Aug 2021904,290+15,0961.00
13 Aug 2021889,194+47,8821.00
30 Jul 2021841,312โˆ’67,5351.00
15 Jul 2021908,847+27,5371.00
30 Jun 2021881,310โˆ’122,0411.00
15 Jun 20211,003,351สณโˆ’94,8611.00
28 May 20211,098,212+401,3431.00
14 May 2021696,869โˆ’82,6121.00
30 Apr 2021779,481โˆ’25,6581.00
15 Apr 2021805,139โˆ’167,8521.00
31 Mar 2021972,991โˆ’56,1351.00
15 Mar 20211,029,126+18,7131.00
26 Feb 20211,010,413+72,5541.00
12 Feb 2021937,859+83,0981.00
29 Jan 2021854,761+245,9981.00
15 Jan 2021608,763โˆ’256,5321.00
31 Dec 2020865,295+288,6741.00
15 Dec 2020576,621+36,9131.00
30 Nov 2020539,708โˆ’24,5331.00
13 Nov 2020564,241+86,8421.00
30 Oct 2020477,399+50,2591.00
15 Oct 2020427,140โˆ’939,0651.00
30 Sep 20201,366,205+440,7241.00
15 Sep 2020925,481+181,5211.00
31 Aug 2020743,960+429,6101.00
14 Aug 2020314,350+32,1191.00
31 Jul 2020282,231โˆ’104,5891.00
15 Jul 2020386,820+48,3201.00
30 Jun 2020338,500+24,2931.00
15 Jun 2020314,207โˆ’331,9711.00
29 May 2020646,178โˆ’238,0931.00
15 May 2020884,271+149,9911.00
30 Apr 2020734,280โˆ’101,4661.00
15 Apr 2020835,746โˆ’103,1151.00
31 Mar 2020938,861+272,6981.00
13 Mar 2020666,163+285,1001.00
28 Feb 2020381,063โˆ’136,4041.00
14 Feb 2020517,467โˆ’20,8021.00
31 Jan 2020538,269โˆ’6,6261.00
15 Jan 2020544,895+94,9091.00
31 Dec 2019449,986โˆ’154,7521.00
13 Dec 2019604,738โˆ’64,6721.00
29 Nov 2019669,410โˆ’48,6601.00
15 Nov 2019718,070+24,2911.00
31 Oct 2019693,779โˆ’94,5211.00
15 Oct 2019788,300โˆ’184,4691.00
30 Sep 2019972,769+299,4351.00
13 Sep 2019673,334+93,2691.00
30 Aug 2019580,065+126,8651.00
15 Aug 2019453,200โˆ’106,2781.00
31 Jul 2019559,478โˆ’43,4771.00
15 Jul 2019602,955+209,3481.00
28 Jun 2019393,607โˆ’68,4661.00
14 Jun 2019462,073+2841.00
31 May 2019461,789+142,4191.00
15 May 2019319,370โˆ’112,5291.00
30 Apr 2019431,899+76,8841.00
15 Apr 2019355,015+18,3391.00
29 Mar 2019336,676+18,3101.00
15 Mar 2019318,366โˆ’33,2781.00
28 Feb 2019351,644โˆ’265,4591.00
15 Feb 2019617,103+44,6991.00
31 Jan 2019572,404โˆ’125,9551.00
15 Jan 2019698,359โˆ’159,8651.00
31 Dec 2018858,224โˆ’145,8571.00
14 Dec 20181,004,081+307,7621.00
30 Nov 2018696,319+126,9311.00
15 Nov 2018569,388โˆ’40,2771.00
31 Oct 2018609,665+172,8991.00
15 Oct 2018436,766โˆ’33,1851.00
28 Sep 2018469,951โˆ’218,5891.00
14 Sep 2018688,540+166,8021.00
31 Aug 2018521,738+29,6081.00
15 Aug 2018492,130โˆ’7,7041.00
31 Jul 2018499,834+57,9001.00
13 Jul 2018441,934+6,4501.00
29 Jun 2018435,484โˆ’131,2421.00
15 Jun 2018566,726โˆ’264,6541.00
31 May 2018831,380+245,8401.00
15 May 2018585,540โˆ’252,3121.00
30 Apr 2018837,852+93,9631.00
13 Apr 2018743,889+319,9151.00
29 Mar 2018423,974โˆ’183,3741.00
15 Mar 2018607,348+102,4281.00
28 Feb 2018504,920+109,9451.00
15 Feb 2018394,975โˆ’129,1231.00
31 Jan 2018524,098โˆ’91,9911.00
12 Jan 2018616,089โˆ’35,8141.00
29 Dec 2017651,903โ€“1.00

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

Questions

Frequently asked questions

What is SSO's short interest?
1,388,852 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 205,577 from the previous settlement.
Why is there no percentage for SSO?
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 SSO'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.