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HowShorted

IWF short interest NYSE Arca

iShares Russell 1000 Growth ET. 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
4,484,473
vs previous settlement
โˆ’904,480 (-16.8%)
days to cover
1.22
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for IWF: 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
373
14 Sep 2026
Highest in window
500,868
30 Jun 2026
Days with a balance
90
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for iShares Russell 1000 Growth ET 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 501K shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20264,484,473โˆ’904,4801.22
31 Aug 20265,388,953+370,3011.55
14 Aug 20265,018,652+394,9971.67
31 Jul 20264,623,655+359,0431.00
15 Jul 20264,264,612โˆ’488,2921.00
30 Jun 20264,752,904+646,4451.00
15 Jun 20264,106,459โˆ’896,6581.00
29 May 20265,003,117+663,3831.22
15 May 20264,339,734โˆ’1,924,7401.00
30 Apr 20266,264,474+4,702,5651.28
15 Apr 20261,561,909โˆ’44,8941.00
31 Mar 20261,606,803โˆ’451,3661.00
13 Mar 20262,058,169+438,7791.00
27 Feb 20261,619,390+397,6171.00
13 Feb 20261,221,773โˆ’44,0611.00
30 Jan 20261,265,834+66,2461.00
15 Jan 20261,199,588โˆ’160,8631.00
31 Dec 20251,360,451+15,0851.00
15 Dec 20251,345,366+91,6811.00
28 Nov 20251,253,685+31,1111.00
14 Nov 20251,222,574โˆ’119,0201.13
31 Oct 20251,341,594+228,1551.00
15 Oct 20251,113,439โˆ’86,5841.09
30 Sep 20251,200,023โˆ’111,4351.00
15 Sep 20251,311,458โˆ’326,7101.30
29 Aug 20251,638,168+220,2171.95
15 Aug 20251,417,951โˆ’293,2421.57
31 Jul 20251,711,193+80,0321.53
15 Jul 20251,631,161+216,9391.63
30 Jun 20251,414,222โˆ’65,4321.27
13 Jun 20251,479,654โˆ’5,3871.31
30 May 20251,485,041โˆ’157,6781.14
15 May 20251,642,719+41,7471.14
30 Apr 20251,600,972+132,6811.00
15 Apr 20251,468,291โˆ’428,4001.00
31 Mar 20251,896,691+256,3541.01
14 Mar 20251,640,337+181,0401.00
28 Feb 20251,459,297+49,8491.11
14 Feb 20251,409,448โˆ’57,6191.25
31 Jan 20251,467,067โˆ’465,2741.00
15 Jan 20251,932,341โˆ’373,0511.11
31 Dec 20242,305,392+1,050,2701.34
13 Dec 20241,255,122+81,6081.00
29 Nov 20241,173,514+105,5641.02
15 Nov 20241,067,950โˆ’116,3151.00
31 Oct 20241,184,265+129,5561.09
15 Oct 20241,054,709โˆ’328,9351.00
30 Sep 20241,383,644+139,3561.09
13 Sep 20241,244,288+60,3241.00
30 Aug 20241,183,964โˆ’89,7791.22
15 Aug 20241,273,743โˆ’244,9331.00
31 Jul 20241,518,676โˆ’15,3551.09
15 Jul 20241,534,031+123,0901.26
28 Jun 20241,410,941โˆ’6,8241.00
14 Jun 20241,417,765+152,7461.10
31 May 20241,265,019โˆ’130,1211.00
15 May 20241,395,140+138,6011.63
30 Apr 20241,256,539+20,2601.00
15 Apr 20241,236,279โˆ’11,2201.00
28 Mar 20241,247,499+51,8071.00
15 Mar 20241,195,692โˆ’53,0741.02
29 Feb 20241,248,766+54,0541.34
15 Feb 20241,194,712โˆ’98,0321.00
31 Jan 20241,292,744+218,5901.00
12 Jan 20241,074,154+78,0871.00
29 Dec 2023996,067โˆ’562,0861.00
15 Dec 20231,558,153+99,9021.00
30 Nov 20231,458,251+164,1871.18
15 Nov 20231,294,064โˆ’297,4601.00
31 Oct 20231,591,524โˆ’68,7121.16
13 Oct 20231,660,236+218,2281.50
29 Sep 20231,442,008โˆ’31,9241.00
15 Sep 20231,473,932โˆ’16,3601.57
31 Aug 20231,490,292โˆ’79,3121.38
15 Aug 20231,569,604+248,5671.49
31 Jul 20231,321,037สณ+46,1041.00
14 Jul 20231,274,933+77,5391.00
30 Jun 20231,197,394โˆ’278,9031.00
15 Jun 20231,476,297+120,7351.00
31 May 20231,355,562โˆ’259,1471.18
15 May 20231,614,709+185,0061.35
28 Apr 20231,429,703โˆ’57,0911.21
14 Apr 20231,486,794+40,3171.52
31 Mar 20231,446,477โˆ’278,0681.18
15 Mar 20231,724,545+69,3621.36
28 Feb 20231,655,183+35,0351.40
15 Feb 20231,620,148+40,1391.09
31 Jan 20231,580,009โˆ’395,9341.00
13 Jan 20231,975,943โˆ’20,7971.00
30 Dec 20221,996,740โˆ’44,1081.00
15 Dec 20222,040,848+365,9681.00
30 Nov 20221,674,880โˆ’475,9351.00
15 Nov 20222,150,815+417,9041.00
31 Oct 20221,732,911โˆ’344,1701.00
14 Oct 20222,077,081+98,0591.03
30 Sep 20221,979,022+340,6621.00
15 Sep 20221,638,360โˆ’224,3731.03
31 Aug 20221,862,733โˆ’199,9101.37
15 Aug 20222,062,643โˆ’161,5361.23
29 Jul 20222,224,179โˆ’86,4051.15
15 Jul 20222,310,584โˆ’403,4301.00
30 Jun 20222,714,014+375,1661.00
15 Jun 20222,338,848โˆ’198,2281.00
31 May 20222,537,076+265,5211.09
13 May 20222,271,555+231,8111.00
29 Apr 20222,039,744โˆ’464,8821.00
14 Apr 20222,504,626โˆ’121,8811.27
31 Mar 20222,626,507โˆ’119,4651.24
15 Mar 20222,745,972+300,7341.14
28 Feb 20222,445,238+77,0071.00
15 Feb 20222,368,231โˆ’313,3731.23
31 Jan 20222,681,604+746,4751.00
14 Jan 20221,935,129โˆ’1,265,0851.00
31 Dec 20213,200,214โˆ’64,1651.51
15 Dec 20213,264,379+569,3741.58
30 Nov 20212,695,005+40,0181.69
15 Nov 20212,654,987+70,1721.48
29 Oct 20212,584,815+239,6661.87
15 Oct 20212,345,149+214,1021.54
30 Sep 20212,131,047+171,5951.00
15 Sep 20211,959,452โˆ’117,9591.35
31 Aug 20212,077,411โˆ’84,0151.68
13 Aug 20212,161,426โˆ’308,9141.74
30 Jul 20212,470,340โˆ’369,5261.48
15 Jul 20212,839,866+331,2412.04
30 Jun 20212,508,625โˆ’172,1382.15
15 Jun 20212,680,763สณ+330,7762.39
28 May 20212,349,987โˆ’329,6412.17
14 May 20212,679,628+385,7412.17
30 Apr 20212,293,887โˆ’321,7591.95
15 Apr 20212,615,646โˆ’85,9922.28
31 Mar 20212,701,638โˆ’155,4942.75
15 Mar 20212,857,132โˆ’590,1251.87
26 Feb 20213,447,257+118,9312.95
12 Feb 20213,328,326+346,2052.98
29 Jan 20212,982,121โˆ’118,2872.21
15 Jan 20213,100,408+211,5472.00
31 Dec 20202,888,861+666,2782.49
15 Dec 20202,222,583โˆ’442,0621.71
30 Nov 20202,664,645โˆ’1111.98
13 Nov 20202,664,756+660,9861.37
30 Oct 20202,003,770โˆ’788,2851.66
15 Oct 20202,792,055+329,0322.22
30 Sep 20202,463,023+17,2751.57
15 Sep 20202,445,748+204,8981.20
31 Aug 20202,240,850โˆ’84,3941.86
14 Aug 20202,325,244+92,5041.33
31 Jul 20202,232,740+152,2791.56
15 Jul 20202,080,461+253,8771.23
30 Jun 20201,826,584+248,6421.08
15 Jun 20201,577,942+144,0941.00
29 May 20201,433,848+25,0941.00
15 May 20201,408,754+226,1041.00
30 Apr 20201,182,650โˆ’898,4171.00
15 Apr 20202,081,067สณโˆ’7,0921.04
31 Mar 20202,088,159+550,8031.00
13 Mar 20201,537,356+466,4461.00
28 Feb 20201,070,910โˆ’537,7281.00
14 Feb 20201,608,638โˆ’38,4131.36
31 Jan 20201,647,051โˆ’273,6121.12
15 Jan 20201,920,663สณ+101,9261.23
31 Dec 20191,818,737โˆ’443,3201.31
13 Dec 20192,262,057+185,4971.60
29 Nov 20192,076,560+377,9181.60
15 Nov 20191,698,642โˆ’1,850,0811.66
31 Oct 20193,548,723โˆ’9,7763.60
15 Oct 20193,558,499+279,1133.05
30 Sep 20193,279,386+303,7242.52
13 Sep 20192,975,662+70,2572.38
30 Aug 20192,905,405+21,1822.77
15 Aug 20192,884,223+1,275,2721.72
31 Jul 20191,608,951+55,1471.56
15 Jul 20191,553,804โˆ’193,7981.16
28 Jun 20191,747,602+246,7041.00
14 Jun 20191,500,898+60,1231.16
31 May 20191,440,775โˆ’153,6081.14
15 May 20191,594,383โˆ’61,2711.00
30 Apr 20191,655,654โˆ’61,5961.17
15 Apr 20191,717,250+76,4291.14
29 Mar 20191,640,821+134,3961.17
15 Mar 20191,506,425โˆ’190,8931.00
28 Feb 20191,697,318โˆ’195,7281.46
15 Feb 20191,893,046+380,4781.22
31 Jan 20191,512,568+91,5981.00
15 Jan 20191,420,970โˆ’865,5581.00
31 Dec 20182,286,528โˆ’94,8391.00
14 Dec 20182,381,367+453,7261.00
30 Nov 20181,927,641โˆ’9,2061.00
15 Nov 20181,936,847+18,0931.14
31 Oct 20181,918,754โˆ’339,0201.04
15 Oct 20182,257,774+933,7051.02
28 Sep 20181,324,069โˆ’190,2001.10
14 Sep 20181,514,269+177,4121.00
31 Aug 20181,336,857โˆ’153,3981.49
15 Aug 20181,490,255+315,3951.14
31 Jul 20181,174,860โˆ’903,3651.00
13 Jul 20182,078,225+813,5571.51
29 Jun 20181,264,668+99,4171.00
15 Jun 20181,165,251โˆ’175,6301.00
31 May 20181,340,881โˆ’341,4191.00
15 May 20181,682,300+234,3091.24
30 Apr 20181,447,991+35,4511.17
13 Apr 20181,412,540+141,7211.00
29 Mar 20181,270,819โˆ’1,8731.00
15 Mar 20181,272,692โˆ’422,9771.00
28 Feb 20181,695,669โˆ’150,1871.33
15 Feb 20181,845,856+576,8851.00
31 Jan 20181,268,971โˆ’243,2621.00
12 Jan 20181,512,233สณ+249,0911.00
29 Dec 20171,263,142โ€“1.00

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

Questions

Frequently asked questions

What is IWF's short interest?
4,484,473 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 904,480 from the previous settlement.
Why is there no percentage for IWF?
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 IWF's days to cover?
1.22 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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