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HowShorted

OEF short interest NYSE Arca

iShares S&P 100 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
62,193
vs previous settlement
+12,410 (+24.9%)
days to cover
1.00
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for OEF: 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
2
3 Sep 2026
Highest in window
159,980
13 Mar 2026
Days with a balance
73
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for iShares S&P 100 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 160K shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 202662,193+12,4101.00
31 Aug 202649,783โˆ’96,2381.00
14 Aug 2026146,021+16,1601.00
31 Jul 2026129,861+54,5871.00
15 Jul 202675,274โˆ’101,7681.00
30 Jun 2026177,042+86,7071.00
15 Jun 202690,335โˆ’3,5981.00
29 May 202693,933โˆ’16,1011.00
15 May 2026110,034+24,9761.00
30 Apr 202685,058โˆ’32,2731.00
15 Apr 2026117,331+7,6481.00
31 Mar 2026109,683โˆ’1,103,4381.00
13 Mar 20261,213,121+970,2801.00
27 Feb 2026242,841โˆ’113,8641.00
13 Feb 2026356,705+137,1941.00
30 Jan 2026219,511โˆ’68,0511.00
15 Jan 2026287,562+102,3371.00
31 Dec 2025185,225โˆ’26,1801.00
15 Dec 2025211,405โˆ’16,3231.00
28 Nov 2025227,728โˆ’43,6241.00
14 Nov 2025271,352+46,3751.00
31 Oct 2025224,977+76,8171.00
15 Oct 2025148,160โˆ’217,6711.00
30 Sep 2025365,831+140,2521.00
15 Sep 2025225,579โˆ’52,2961.00
29 Aug 2025277,875โˆ’82,2731.33
15 Aug 2025360,148+114,9851.38
31 Jul 2025245,163+4771.10
15 Jul 2025244,686โˆ’49,7491.33
30 Jun 2025294,435+30,5781.08
13 Jun 2025263,857โˆ’2,0071.00
30 May 2025265,864+80,2751.00
15 May 2025185,589โˆ’41,7671.00
30 Apr 2025227,356โˆ’50,4031.00
15 Apr 2025277,759+92,2031.00
31 Mar 2025185,556โˆ’29,2251.00
14 Mar 2025214,781โˆ’79,1341.00
28 Feb 2025293,915+146,4421.00
14 Feb 2025147,473+3161.00
31 Jan 2025147,157+9,8231.00
15 Jan 2025137,334+8,0871.00
31 Dec 2024129,247โˆ’44,4801.00
13 Dec 2024173,727+15,4701.10
29 Nov 2024158,257โˆ’31,1711.00
15 Nov 2024189,428โˆ’24,6261.00
31 Oct 2024214,054+10,3261.05
15 Oct 2024203,728โˆ’77,3811.07
30 Sep 2024281,109โˆ’19,4911.24
13 Sep 2024300,600+34,0651.07
30 Aug 2024266,535+39,6501.32
15 Aug 2024226,885โˆ’28,2871.00
31 Jul 2024255,172โˆ’44,0321.42
15 Jul 2024299,204+58,0411.55
28 Jun 2024241,163โˆ’38,8781.09
14 Jun 2024280,041+101,8871.41
31 May 2024178,154โˆ’15,6821.17
15 May 2024193,836+32,5211.04
30 Apr 2024161,315+13,6221.00
15 Apr 2024147,693+31,2211.00
28 Mar 2024116,472โˆ’73,0791.00
15 Mar 2024189,551โˆ’3,8981.00
29 Feb 2024193,449+60,3391.00
15 Feb 2024133,110+11,4731.00
31 Jan 2024121,637โˆ’23,2971.00
12 Jan 2024144,934โˆ’67,6131.00
29 Dec 2023212,547โˆ’37,4791.00
15 Dec 2023250,026โˆ’30,4781.00
30 Nov 2023280,504โˆ’58,5801.00
15 Nov 2023339,084+74,4421.00
31 Oct 2023264,642+87,7911.00
13 Oct 2023176,851+78,6881.07
29 Sep 202398,163โˆ’83,1691.00
15 Sep 2023181,332+3,1131.00
31 Aug 2023178,219โˆ’3,9091.00
15 Aug 2023182,128โˆ’86,6851.13
31 Jul 2023268,813+55,8721.41
14 Jul 2023212,941+43,7521.00
30 Jun 2023169,189โˆ’84,4571.00
15 Jun 2023253,646โˆ’14,6991.00
31 May 2023268,345+83,3631.00
15 May 2023184,982+50,4841.00
28 Apr 2023134,498โˆ’38,8201.00
14 Apr 2023173,318+42,4251.00
31 Mar 2023130,893+9,2261.00
15 Mar 2023121,667โˆ’35,8401.00
28 Feb 2023157,507โˆ’10,7211.00
15 Feb 2023168,228โˆ’8,7501.00
31 Jan 2023176,978+79,0931.00
13 Jan 202397,885+11,7661.00
30 Dec 202286,119โˆ’111,9271.00
15 Dec 2022198,046+43,0331.00
30 Nov 2022155,013โˆ’12,5001.00
15 Nov 2022167,513โˆ’24,4701.00
31 Oct 2022191,983+80,5391.00
14 Oct 2022111,444โˆ’26,3211.00
30 Sep 2022137,765+18,4061.00
15 Sep 2022119,359โˆ’29,6291.00
31 Aug 2022148,988โˆ’43,9161.00
15 Aug 2022192,904โˆ’15,8791.00
29 Jul 2022208,783โˆ’36,4051.00
15 Jul 2022245,188โˆ’50,7881.01
30 Jun 2022295,976+54,8161.00
15 Jun 2022241,160+24,2791.00
31 May 2022216,881โˆ’15,8951.00
13 May 2022232,776+34,7481.00
29 Apr 2022198,028โˆ’16,3621.00
14 Apr 2022214,390+37,8531.00
31 Mar 2022176,537+17,5941.00
15 Mar 2022158,943โˆ’18,4901.00
28 Feb 2022177,433โˆ’23,4211.00
15 Feb 2022200,854โˆ’65,1881.00
31 Jan 2022266,042+93,9641.00
14 Jan 2022172,078โˆ’59,7001.00
31 Dec 2021231,778โˆ’131,8191.00
15 Dec 2021363,597+190,6561.00
30 Nov 2021172,941โˆ’38,9531.00
15 Nov 2021211,894โˆ’65,8381.33
29 Oct 2021277,732+59,6751.78
15 Oct 2021218,057+26,8531.00
30 Sep 2021191,204+9,4941.13
15 Sep 2021181,710โˆ’104,8291.00
31 Aug 2021286,539+37,0301.59
13 Aug 2021249,509+11,4061.47
30 Jul 2021238,103โˆ’24,6791.00
15 Jul 2021262,782+50,8431.27
30 Jun 2021211,939+26,8031.44
15 Jun 2021185,136โˆ’12,6011.27
28 May 2021197,737+30,9451.40
14 May 2021166,792โˆ’10,1021.00
30 Apr 2021176,894โˆ’78,2061.16
15 Apr 2021255,100+26,7521.43
31 Mar 2021228,348โˆ’151,7831.00
15 Mar 2021380,131+51,9161.00
26 Feb 2021328,215+24,4921.01
12 Feb 2021303,723โˆ’21,5581.69
29 Jan 2021325,281+143,9821.00
15 Jan 2021181,299โˆ’12,0081.00
31 Dec 2020193,307โˆ’62,4041.43
15 Dec 2020255,711โˆ’11,7741.00
30 Nov 2020267,485โˆ’27,5251.60
13 Nov 2020295,010โˆ’12,2041.22
30 Oct 2020307,214โˆ’4,3141.56
15 Oct 2020311,528+2,2001.46
30 Sep 2020309,328โˆ’4,8771.57
15 Sep 2020314,205โˆ’53,9891.00
31 Aug 2020368,194+25,9492.16
14 Aug 2020342,245โˆ’65,6571.75
31 Jul 2020407,902โˆ’33,2331.54
15 Jul 2020441,135+27,0081.04
30 Jun 2020414,127โˆ’285,4721.02
15 Jun 2020699,599โˆ’148,2922.22
29 May 2020847,891+9,8762.20
15 May 2020838,015+149,7162.65
30 Apr 2020688,299+80,7201.07
15 Apr 2020607,579+215,1181.00
31 Mar 2020392,461+161,6171.00
13 Mar 2020230,844+12,3551.00
28 Feb 2020218,489โˆ’21,8451.00
14 Feb 2020240,334โˆ’28,0691.00
31 Jan 2020268,403+129,8171.00
15 Jan 2020138,586สณโˆ’273,3241.00
31 Dec 2019411,910โˆ’167,1911.61
13 Dec 2019579,101โˆ’12,0471.88
29 Nov 2019591,148+225,5122.59
15 Nov 2019365,636โˆ’64,1101.38
31 Oct 2019429,746โˆ’19,4211.20
15 Oct 2019449,167โˆ’23,6091.01
30 Sep 2019472,776โˆ’17,7311.21
13 Sep 2019490,507+80,7081.59
30 Aug 2019409,799โˆ’77,4401.05
15 Aug 2019487,239+24,5991.00
31 Jul 2019462,640โˆ’99,9601.33
15 Jul 2019562,600+7,2251.87
28 Jun 2019555,375+138,6031.45
14 Jun 2019416,772โˆ’48,5911.17
31 May 2019465,363โˆ’268,7791.00
15 May 2019734,142+238,7931.14
30 Apr 2019495,349โˆ’16,0231.24
15 Apr 2019511,372โˆ’83,9661.25
29 Mar 2019595,338โˆ’279,5651.00
15 Mar 2019874,903โˆ’29,5011.41
28 Feb 2019904,404+270,9841.84
15 Feb 2019633,420โˆ’278,3751.14
31 Jan 2019911,795+272,4351.13
15 Jan 2019639,360โˆ’617,2901.00
31 Dec 20181,256,650+672,9041.00
14 Dec 2018583,746+88,6741.00
30 Nov 2018495,072+3,0841.00
15 Nov 2018491,988โˆ’91,0151.00
31 Oct 2018583,003+33,7851.00
15 Oct 2018549,218โˆ’34,9691.00
28 Sep 2018584,187โˆ’127,7211.71
14 Sep 2018711,908+121,7501.16
31 Aug 2018590,158โˆ’6,7101.36
15 Aug 2018596,868+14,7501.35
31 Jul 2018582,118โˆ’324,9591.12
13 Jul 2018907,077+76,4712.40
29 Jun 2018830,606+66,4661.57
15 Jun 2018764,140+72,5361.41
31 May 2018691,604โˆ’194,4621.18
15 May 2018886,066โˆ’2,550,7241.60
30 Apr 20183,436,790+13,9105.77
13 Apr 20183,422,880โˆ’38,7973.51
29 Mar 20183,461,677โˆ’148,5153.76
15 Mar 20183,610,192โˆ’51,4325.94
28 Feb 20183,661,624+53,1266.46
15 Feb 20183,608,498+12,3952.18
31 Jan 20183,596,103+62,3553.93
12 Jan 20183,533,748+9,3597.67
29 Dec 20173,524,389โ€“8.74

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

Questions

Frequently asked questions

What is OEF's short interest?
62,193 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 12,410 from the previous settlement.
Why is there no percentage for OEF?
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 OEF'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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