What is IWM's short interest?

98,116,218 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 18,035,177 from the previous settlement.

Why is there no percentage for IWM?

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 IWM's days to cover?

4.52 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.

IWM short interest NYSE Arca

iShares Russell 2000 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: 98,116,218
vs previous settlement: +18,035,177 (+22.5%)
days to cover: 4.52
Settlement date: 15 Sep 2026

Shares short over time

Days to cover

FINRA's own figure: reported shares short divided by the security's average daily trading volume, published alongside each settlement.

Fails to deliver

The SEC's fails-to-deliver figure for IWM: 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: 825,370; 14 Sep 2026
Highest in window: 7,800,084; 16 Mar 2026
Days with a balance: 206
Window: 16 Sep 2025 to 14 Sep 2026

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 7.8M shares.

History

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

Full reported short interest history
Settlement date	Shares short	Change	Days to cover
15 Sep 2026	98,116,218	+18,035,177	4.52
31 Aug 2026	80,081,041	+1,346,800	4.79
14 Aug 2026	78,734,241	+5,948,064	4.60
31 Jul 2026	72,786,177	−7,025,141	3.10
15 Jul 2026	79,811,318	−313,821	4.17
30 Jun 2026	80,125,139	−7,282,966	2.76
15 Jun 2026	87,408,105	+6,103,854	2.83
29 May 2026	81,304,251	+1,573,032	3.00
15 May 2026	79,731,219	−14,284,470	3.16
30 Apr 2026	94,015,689	+2,004,372	3.30
15 Apr 2026	92,011,317	−7,588,078	3.02
31 Mar 2026	99,599,395	−1,836,336	1.86
13 Mar 2026	101,435,731	+21,531,337	1.80
27 Feb 2026	79,904,394	+2,389,957	2.15
13 Feb 2026	77,514,437	−2,369,887	1.82
30 Jan 2026	79,884,324	−509,611	1.91
15 Jan 2026	80,393,935	−250,028	2.24
31 Dec 2025	80,643,963	−9,296,964	2.60
15 Dec 2025	89,940,927	+5,529,780	2.29
28 Nov 2025	84,411,147	−1,133,862	1.50
14 Nov 2025	85,545,009	+2,644,150	2.06
31 Oct 2025	82,900,859	−933,768	2.13
15 Oct 2025	83,834,627	+1,301,392	2.28
30 Sep 2025	82,533,235	−5,887,849	1.89
15 Sep 2025	88,421,084	−133,798	2.40
29 Aug 2025	88,554,882ʳ	−5,772,832	3.05
15 Aug 2025	94,327,714	+3,829,601	2.48
31 Jul 2025	90,498,113	+921,177	2.49
15 Jul 2025	89,576,936	−1,283,962	2.58
30 Jun 2025	90,860,898	−6,460,226	2.70
13 Jun 2025	97,321,124	+305,200	2.83
30 May 2025	97,015,924	−8,671,455	3.20
15 May 2025	105,687,379	−1,066,014	3.91
30 Apr 2025	106,753,393	−610,319	3.45
15 Apr 2025	107,363,712	+24,059,470	1.75
31 Mar 2025	83,304,242	−6,413,644	3.13
14 Mar 2025	89,717,886	−793,630	2.22
28 Feb 2025	90,511,516	+7,810,566	3.32
14 Feb 2025	82,700,950	+5,133,202	3.97
31 Jan 2025	77,567,748	−5,522,952	3.27
15 Jan 2025	83,090,700	+5,397,512	2.94
31 Dec 2024	77,693,188	−5,232,588	2.34
13 Dec 2024	82,925,776	+644,625	3.90
29 Nov 2024	82,281,151	−4,235,638	3.32
15 Nov 2024	86,516,789	+1,198,303	2.62
31 Oct 2024	85,318,486	−618,850	4.01
15 Oct 2024	85,937,336	+3,789,292	4.03
30 Sep 2024	82,148,044	−3,897,735	2.84
13 Sep 2024	86,045,779	+2,113,592	3.07
30 Aug 2024	83,932,187	−7,643,824	3.57
15 Aug 2024	91,576,011	+4,431,718	2.33
31 Jul 2024	87,144,293	+3,136,605	1.91
15 Jul 2024	84,007,688	+6,324,864	2.85
28 Jun 2024	77,682,824	−11,262,683	3.08
14 Jun 2024	88,945,507	+6,721,905	3.31
31 May 2024	82,223,602	−1,430,860	3.53
15 May 2024	83,654,462	+705,949	3.19
30 Apr 2024	82,948,513	+4,619,271	2.50
15 Apr 2024	78,329,242	−2,297,515	2.36
28 Mar 2024	80,626,757	−7,423,596	2.42
15 Mar 2024	88,050,353	+3,616,607	2.53
29 Feb 2024	84,433,746	−3,360,259	2.41
15 Feb 2024	87,794,005	+4,419,659	1.86
31 Jan 2024	83,374,346	+4,352,212	1.95
12 Jan 2024	79,022,134	−4,699,037	1.90
29 Dec 2023	83,721,171	−19,116,570	2.04
15 Dec 2023	102,837,741	+3,977,345	2.07
30 Nov 2023	98,860,396	+563,563	3.16
15 Nov 2023	98,296,833ʳ	−6,591,727	2.15
31 Oct 2023	104,888,560	+6,574,998	2.55
13 Oct 2023	98,313,562	+1,413,270	2.72
29 Sep 2023	96,900,292	+971,577	3.41
15 Sep 2023	95,928,715	+10,626,180	3.86
31 Aug 2023	85,302,535	+3,895,519	3.50
15 Aug 2023	81,407,016	−1,944,713	3.32
31 Jul 2023	83,351,729	+1,930,157	3.46
14 Jul 2023	81,421,572	−2,794,993	2.81
30 Jun 2023	84,216,565	−4,688,439	2.49
15 Jun 2023	88,905,004	−10,075,135	2.26
31 May 2023	98,980,139ʳ	−1,075,102	3.17
15 May 2023	100,055,241	+1,278,397	3.33
28 Apr 2023	98,776,844	+4,711,892	3.91
14 Apr 2023	94,064,952	+2,151,140	3.53
31 Mar 2023	91,913,812	+2,647,874	2.17
15 Mar 2023	89,265,938	+6,706,596	2.36
28 Feb 2023	82,559,342	+2,514,610	3.70
15 Feb 2023	80,044,732	−955,286	3.69
31 Jan 2023	81,000,018	−4,784,787	3.67
13 Jan 2023	85,784,805	−9,183,924	4.03
30 Dec 2022	94,968,729	+11,483,601	4.42
15 Dec 2022	83,485,128	+375,002	3.33
30 Nov 2022	83,110,126	−10,266,781	4.12
15 Nov 2022	93,376,907	−4,585,390	3.33
31 Oct 2022	97,962,297	−6,436,486	3.11
14 Oct 2022	104,398,783	−1,579,102	3.49
30 Sep 2022	105,977,885	−298,647	3.13
15 Sep 2022	106,276,532	−1,456,004	4.04
31 Aug 2022	107,732,536	+2,547,498	5.18
15 Aug 2022	105,185,038	−4,606,058	5.31
29 Jul 2022	109,791,096	−1,562,219	4.88
15 Jul 2022	111,353,315	−3,358,193	4.41
30 Jun 2022	114,711,508	+1,116,125	3.63
15 Jun 2022	113,595,383	−5,970,196	4.15
31 May 2022	119,565,579	−3,753,901	3.96
13 May 2022	123,319,480	+7,010,578	2.71
29 Apr 2022	116,308,902	+6,915,245	3.58
14 Apr 2022	109,393,657	+4,019,072	3.92
31 Mar 2022	105,374,585	−3,721,560	4.12
15 Mar 2022	109,096,145	−10,988,725	3.36
28 Feb 2022	120,084,870	−4,968,748	3.46
15 Feb 2022	125,053,618	+11,994,127	3.50
31 Jan 2022	113,059,491	+7,783,851	1.80
14 Jan 2022	105,275,640	+2,135,301	2.95
31 Dec 2021	103,140,339	−11,204,416	3.04
15 Dec 2021	114,344,755	−884,951	2.46
30 Nov 2021	115,229,706	+2,848,116	3.07
15 Nov 2021	112,381,590	+231,625	3.68
29 Oct 2021	112,149,965	−1,190,665	5.61
15 Oct 2021	113,340,630	−5,924,508	4.78
30 Sep 2021	119,265,138	+4,393,500	3.72
15 Sep 2021	114,871,638	+3,209,584	4.59
31 Aug 2021	111,662,054	−4,124,403	4.16
13 Aug 2021	115,786,457	+309,018	4.91
30 Jul 2021	115,477,439	+765,884	3.51
15 Jul 2021	114,711,555	+330,733	4.10
30 Jun 2021	114,380,822	−16,142,700	3.98
15 Jun 2021	130,523,522ʳ	+407,732	6.01
28 May 2021	130,115,790	+5,373,616	6.33
14 May 2021	124,742,174	+2,175,725	4.79
30 Apr 2021	122,566,449	+5,178,855	5.25
15 Apr 2021	117,387,594	+2,617,124	5.14
31 Mar 2021	114,770,470	+15,736,027	3.31
15 Mar 2021	99,034,443	−10,646,523	3.05
26 Feb 2021	109,680,966	+2,299,984	4.06
12 Feb 2021	107,380,982	+13,247,412	4.97
29 Jan 2021	94,133,570	+15,305,053	3.73
15 Jan 2021	78,828,517	−7,064,913	2.92
31 Dec 2020	85,893,430	−23,066,952	3.81
15 Dec 2020	108,960,382	+16,308,745	4.93
30 Nov 2020	92,651,637	+7,967,853	4.24
13 Nov 2020	84,683,784	+1,109,250	2.77
30 Oct 2020	83,574,534	−14,301,869	4.17
15 Oct 2020	97,876,403	−7,954,697	4.16
30 Sep 2020	105,831,100	+11,336,194	4.43
15 Sep 2020	94,494,906	−3,257,356	4.57
31 Aug 2020	97,752,262	+5,484,456	7.24
14 Aug 2020	92,267,806	−2,328,982	4.81
31 Jul 2020	94,596,788	−17,429,761	4.90
15 Jul 2020	112,026,549	−12,010,289	4.64
30 Jun 2020	124,036,838	+28,515,386	3.75
15 Jun 2020	95,521,452	+2,170,455	2.44
29 May 2020	93,350,997	−9,312,407	2.88
15 May 2020	102,663,404ʳ	+8,986,406	2.93
30 Apr 2020	93,676,998	+9,821,982	2.64
15 Apr 2020	83,855,016	−5,462,124	1.89
31 Mar 2020	89,317,140	+4,445,303	1.66
13 Mar 2020	84,871,837	+12,180,866	2.03
28 Feb 2020	72,690,971	+3,443,354	2.62
14 Feb 2020	69,247,617	+5,280,947	5.12
31 Jan 2020	63,966,670	+1,821,479	3.92
15 Jan 2020	62,145,191	−7,145,283	4.33
31 Dec 2019	69,290,474	+3,491,404	5.43
13 Dec 2019	65,799,070	+1,643,359	4.59
29 Nov 2019	64,155,711	−1,725,701	4.13
15 Nov 2019	65,881,412	+3,920,210	4.66
31 Oct 2019	61,961,202	−2,638,290	4.69
15 Oct 2019	64,599,492	−3,135,179	3.15
30 Sep 2019	67,734,671	−10,396,388	3.14
13 Sep 2019	78,131,059	−2,875,194	2.90
30 Aug 2019	81,006,253	+4,327,544	4.06
15 Aug 2019	76,678,709	+7,666,591	2.96
31 Jul 2019	69,012,118	−4,854,179	3.72
15 Jul 2019	73,866,297	−2,202,842	4.99
28 Jun 2019	76,069,139	−374,466	3.76
14 Jun 2019	76,443,605	+369,062	4.22
31 May 2019	76,074,543	+6,119,428	4.15
15 May 2019	69,955,115	+3,839,446	3.26
30 Apr 2019	66,115,669	+2,033,014	3.51
15 Apr 2019	64,082,655	−8,453,638	3.83
29 Mar 2019	72,536,293	−3,575,598	2.75
15 Mar 2019	76,111,891	+5,572,153	3.54
28 Feb 2019	70,539,738	−784,427	3.82
15 Feb 2019	71,324,165	+4,150,128	3.83
31 Jan 2019	67,174,037	−2,018,119	3.03
15 Jan 2019	69,192,156	−24,680	2.51
31 Dec 2018	69,216,836	+2,713,338	1.66
14 Dec 2018	66,503,498	+5,391,731	2.25
30 Nov 2018	61,111,767	−10,326,614	3.10
15 Nov 2018	71,438,381	−2,003,434	3.35
31 Oct 2018	73,441,815ʳ	+2,593,190	2.21
15 Oct 2018	70,848,625	−10,188,502	2.01
28 Sep 2018	81,037,127	+3,709,370	4.39
14 Sep 2018	77,327,757	−4,394,880	4.83
31 Aug 2018	81,722,637	−2,643,841	5.71
15 Aug 2018	84,366,478	−2,753,183	4.62
31 Jul 2018	87,119,661	+674,910	4.53
13 Jul 2018	86,444,751ʳ	−660,281	4.57
29 Jun 2018	87,105,032	+1,272,840	3.36
15 Jun 2018	85,832,192	+891,883	4.79
31 May 2018	84,940,309	−508,795	4.70
15 May 2018	85,449,104	+1,387,706	4.87
30 Apr 2018	84,061,398	+2,249,377	4.61
13 Apr 2018	81,812,021	+3,454,215	3.55
29 Mar 2018	78,357,806	−6,479,475	2.87
15 Mar 2018	84,837,281	+4,685	3.82
28 Feb 2018	84,832,596	−11,170,246	3.84
15 Feb 2018	96,002,842	+4,225,571	2.44
31 Jan 2018	91,777,271	+8,805,714	4.39
12 Jan 2018	82,971,557ʳ	+7,064,604	4.14
29 Dec 2017	75,906,953	–	4.39

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

Questions

Frequently asked questions

What is IWM's short interest?: 98,116,218 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 18,035,177 from the previous settlement.
Why is there no percentage for IWM?: 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 IWM's days to cover?: 4.52 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.