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HowShorted

IWO short interest NYSE Arca

iShares Russell 2000 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
2,115,425
vs previous settlement
โˆ’112,400 (-5.0%)
days to cover
4.98
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for IWO: 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
56
14 Sep 2026
Highest in window
370,664
4 Aug 2026
Days with a balance
160
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for iShares Russell 2000 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 371K shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20262,115,425โˆ’112,4004.98
31 Aug 20262,227,825โˆ’921,4494.98
14 Aug 20263,149,274+615,0768.91
31 Jul 20262,534,198โˆ’150,5765.69
15 Jul 20262,684,774โˆ’309,3876.06
30 Jun 20262,994,161โˆ’119,0915.25
15 Jun 20263,113,252+441,5677.07
29 May 20262,671,685+3,3546.71
15 May 20262,668,331โˆ’210,8209.74
30 Apr 20262,879,151โˆ’225,6697.08
15 Apr 20263,104,820โˆ’121,0106.18
31 Mar 20263,225,830+434,3486.15
13 Mar 20262,791,482+20,4074.52
27 Feb 20262,771,075โˆ’175,5597.04
13 Feb 20262,946,634+174,0236.08
30 Jan 20262,772,611โˆ’20,2506.42
15 Jan 20262,792,861+299,5123.29
31 Dec 20252,493,349โˆ’56,6596.47
15 Dec 20252,550,008+278,2636.06
28 Nov 20252,271,745+257,0134.85
14 Nov 20252,014,732+111,1365.55
31 Oct 20251,903,596โˆ’34,7624.46
15 Oct 20251,938,358+256,1194.18
30 Sep 20251,682,239โˆ’14,3943.66
15 Sep 20251,696,633+200,8945.56
29 Aug 20251,495,739โˆ’166,4316.18
15 Aug 20251,662,170โˆ’239,6674.71
31 Jul 20251,901,837โˆ’235,1355.28
15 Jul 20252,136,972+1,4125.48
30 Jun 20252,135,560โˆ’187,4235.76
13 Jun 20252,322,983+260,0986.40
30 May 20252,062,885โˆ’193,2325.72
15 May 20252,256,117+361,3785.10
30 Apr 20251,894,739+209,1854.00
15 Apr 20251,685,554+175,7092.07
31 Mar 20251,509,845โˆ’53,6753.11
14 Mar 20251,563,520โˆ’194,5132.45
28 Feb 20251,758,033โˆ’129,0664.87
14 Feb 20251,887,099+33,3518.17
31 Jan 20251,853,748+128,1534.95
15 Jan 20251,725,595โˆ’64,5554.78
31 Dec 20241,790,150+4234.13
13 Dec 20241,789,727โˆ’2,9565.69
29 Nov 20241,792,683+92,2845.48
15 Nov 20241,700,399+310,6933.39
31 Oct 20241,389,706+197,5443.64
15 Oct 20241,192,162โˆ’80,2315.16
30 Sep 20241,272,393โˆ’324,4172.91
13 Sep 20241,596,810+114,3825.69
30 Aug 20241,482,428โˆ’155,2044.31
15 Aug 20241,637,632โˆ’77,0252.73
31 Jul 20241,714,657+200,3393.48
15 Jul 20241,514,318โˆ’183,7203.51
28 Jun 20241,698,038โˆ’49,0365.04
14 Jun 20241,747,074+72,2196.54
31 May 20241,674,855+16,3765.67
15 May 20241,658,479+80,6635.94
30 Apr 20241,577,816โˆ’147,6313.58
15 Apr 20241,725,447+12,3153.26
28 Mar 20241,713,132โˆ’70,3644.09
15 Mar 20241,783,496โˆ’441,2642.97
29 Feb 20242,224,760+267,6962.93
15 Feb 20241,957,064+18,5663.19
31 Jan 20241,938,498+58,8153.52
12 Jan 20241,879,683โˆ’82,0853.27
29 Dec 20231,961,768+214,6833.38
15 Dec 20231,747,085โˆ’259,4662.41
30 Nov 20232,006,551+266,4874.17
15 Nov 20231,740,064โˆ’313,7542.35
31 Oct 20232,053,818+8,8983.74
13 Oct 20232,044,920โˆ’486,6723.13
29 Sep 20232,531,592โˆ’294,5734.22
15 Sep 20232,826,165+407,4576.44
31 Aug 20232,418,708โˆ’119,4494.83
15 Aug 20232,538,157+105,1934.58
31 Jul 20232,432,964โˆ’134,4784.46
14 Jul 20232,567,442+49,1786.38
30 Jun 20232,518,264โˆ’382,3178.39
15 Jun 20232,900,581โˆ’191,0417.46
31 May 20233,091,622โˆ’286,0269.20
15 May 20233,377,648+119,39211.57
28 Apr 20233,258,256+110,3148.77
14 Apr 20233,147,942โˆ’149,7518.17
31 Mar 20233,297,693โˆ’225,6446.55
15 Mar 20233,523,337+57,6818.03
28 Feb 20233,465,656+96,8128.05
15 Feb 20233,368,844+30,8839.27
31 Jan 20233,337,961โˆ’51,1176.14
13 Jan 20233,389,078โˆ’344,0787.21
30 Dec 20223,733,156โˆ’73,5156.53
15 Dec 20223,806,671+32,2255.26
30 Nov 20223,774,446โˆ’343,4208.68
15 Nov 20224,117,866โˆ’123,5217.67
31 Oct 20224,241,387โˆ’378,0546.88
14 Oct 20224,619,441โˆ’129,8917.24
30 Sep 20224,749,332โˆ’83,7187.39
15 Sep 20224,833,050โˆ’47,7709.46
31 Aug 20224,880,820+117,7348.87
15 Aug 20224,763,086โˆ’279,4807.47
29 Jul 20225,042,566โˆ’492,6447.63
15 Jul 20225,535,210โˆ’350,6789.17
30 Jun 20225,885,888โˆ’341,5796.63
15 Jun 20226,227,467โˆ’309,4207.42
31 May 20226,536,887โˆ’401,0338.23
13 May 20226,937,920+43,9306.10
29 Apr 20226,893,990โˆ’33,2818.86
14 Apr 20226,927,271+74,93512.29
31 Mar 20226,852,336โˆ’825,7428.12
15 Mar 20227,678,078โˆ’399,1008.49
28 Feb 20228,077,178+24,4899.29
15 Feb 20228,052,689+297,4369.04
31 Jan 20227,755,253+429,2906.26
14 Jan 20227,325,963+397,0107.03
31 Dec 20216,928,953โˆ’434,7787.79
15 Dec 20217,363,731+437,8837.45
30 Nov 20216,925,848โˆ’177,68510.35
15 Nov 20217,103,533โˆ’265,15816.64
29 Oct 20217,368,691โˆ’103,60922.78
15 Oct 20217,472,300โˆ’213,30616.13
30 Sep 20217,685,606โˆ’116,02216.27
15 Sep 20217,801,628โˆ’387,44318.80
31 Aug 20218,189,071+71,02816.83
13 Aug 20218,118,043+76,30721.27
30 Jul 20218,041,736+240,60115.16
15 Jul 20217,801,135โˆ’286,07616.41
30 Jun 20218,087,211+156,51715.28
15 Jun 20217,930,694สณโˆ’40,77519.21
28 May 20217,971,469+528,80613.38
14 May 20217,442,663+1,289,07611.28
30 Apr 20216,153,587+127,11515.38
15 Apr 20216,026,472+624,90710.99
31 Mar 20215,401,565+329,1189.67
15 Mar 20215,072,447+210,4845.70
26 Feb 20214,861,963+744,5548.97
12 Feb 20214,117,409+378,5826.95
29 Jan 20213,738,827+654,3068.30
15 Jan 20213,084,521โˆ’56,4355.94
31 Dec 20203,140,956โˆ’379,0805.17
15 Dec 20203,520,036โˆ’300,17110.42
30 Nov 20203,820,207โˆ’188,57910.31
13 Nov 20204,008,786+184,2618.04
30 Oct 20203,824,525+499,2418.40
15 Oct 20203,325,284+82,07311.27
30 Sep 20203,243,211+74,4298.58
15 Sep 20203,168,782โˆ’366,1028.66
31 Aug 20203,534,884โˆ’109,81911.79
14 Aug 20203,644,703+49,8239.47
31 Jul 20203,594,880+65,94114.40
15 Jul 20203,528,939โˆ’151,39413.21
30 Jun 20203,680,333+698,4529.82
15 Jun 20202,981,881โˆ’402,4556.29
29 May 20203,384,336+1,3906.84
15 May 20203,382,946สณ+813,3664.25
30 Apr 20202,569,580โˆ’287,7356.01
15 Apr 20202,857,315โˆ’179,4064.34
31 Mar 20203,036,721โˆ’29,1963.06
13 Mar 20203,065,917+117,2734.35
28 Feb 20202,948,644+207,7265.16
14 Feb 20202,740,918โˆ’474,5776.76
31 Jan 20203,215,495โˆ’288,7767.36
15 Jan 20203,504,271+137,8217.49
31 Dec 20193,366,450โˆ’149,4267.74
13 Dec 20193,515,876โˆ’553,3425.19
29 Nov 20194,069,218โˆ’106,7037.19
15 Nov 20194,175,921+3,0518.22
31 Oct 20194,172,870โˆ’236,42212.97
15 Oct 20194,409,292โˆ’813,0808.64
30 Sep 20195,222,372โˆ’437,48511.04
13 Sep 20195,659,857โˆ’283,88611.25
30 Aug 20195,943,743โˆ’79,81217.92
15 Aug 20196,023,555โˆ’123,64412.28
31 Jul 20196,147,199+117,25713.33
15 Jul 20196,029,942+1,050,73010.03
28 Jun 20194,979,212+283,2125.64
14 Jun 20194,696,000+22,20511.48
31 May 20194,673,795โˆ’82,88013.52
15 May 20194,756,675โˆ’202,92111.20
30 Apr 20194,959,596โˆ’304,0745.55
15 Apr 20195,263,670โˆ’251,05312.24
29 Mar 20195,514,723โˆ’368,8459.45
15 Mar 20195,883,568+699,37311.25
28 Feb 20195,184,195+309,0407.77
15 Feb 20194,875,155โˆ’338,3149.81
31 Jan 20195,213,469+52,8317.78
15 Jan 20195,160,638โˆ’551,5455.54
31 Dec 20185,712,183+1,6234.07
14 Dec 20185,710,560+44,7404.26
30 Nov 20185,665,820โˆ’262,3356.74
15 Nov 20185,928,155+655,3184.96
31 Oct 20185,272,837โˆ’67,6374.42
15 Oct 20185,340,474+70,8852.65
28 Sep 20185,269,589โˆ’414,3345.80
14 Sep 20185,683,923+1,451,7434.60
31 Aug 20184,232,180+91,5945.39
15 Aug 20184,140,586+334,4173.36
31 Jul 20183,806,169โˆ’20,4723.57
13 Jul 20183,826,641โˆ’220,8775.91
29 Jun 20184,047,518โˆ’337,8475.15
15 Jun 20184,385,365+342,1866.75
31 May 20184,043,179+164,5258.12
15 May 20183,878,654+752,1055.93
30 Apr 20183,126,549+378,5164.49
13 Apr 20182,748,033โˆ’201,5975.61
29 Mar 20182,949,630โˆ’717,9085.28
15 Mar 20183,667,538+655,6087.22
28 Feb 20183,011,930โˆ’46,6885.45
15 Feb 20183,058,618+354,4944.81
31 Jan 20182,704,124โˆ’211,1605.44
12 Jan 20182,915,284สณ+160,2184.45
29 Dec 20172,755,066โ€“5.26

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

Questions

Frequently asked questions

What is IWO's short interest?
2,115,425 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 112,400 from the previous settlement.
Why is there no percentage for IWO?
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 IWO's days to cover?
4.98 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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