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HowShorted

IYM short interest NYSE Arca

iShares U.S. Basic Materials E. 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
82,938
vs previous settlement
โˆ’10,805 (-11.5%)
days to cover
1.00
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for IYM: 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
12,743
14 Sep 2026
Highest in window
172,098
17 Apr 2026
Days with a balance
116
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for iShares U.S. Basic Materials E 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 172K shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 202682,938โˆ’10,8051.00
31 Aug 202693,743+63,3401.29
14 Aug 202630,403โˆ’10,1601.00
31 Jul 202640,563โˆ’4,9341.00
15 Jul 202645,497โˆ’25,6861.00
30 Jun 202671,183โˆ’363,9941.00
15 Jun 2026435,177+422,9901.37
29 May 202612,187โˆ’26,3521.00
15 May 202638,539โˆ’43,1231.00
30 Apr 202681,662+33,2251.00
15 Apr 202648,437โˆ’139,1591.00
31 Mar 2026187,596+146,0191.00
13 Mar 202641,577โˆ’40,1431.00
27 Feb 202681,720+38,8341.00
13 Feb 202642,886โˆ’32,3811.00
30 Jan 202675,267โˆ’31,7991.00
15 Jan 2026107,066+58,1691.00
31 Dec 202548,897+26,1191.00
15 Dec 202522,778โˆ’6,6551.00
28 Nov 202529,433+1,0411.64
14 Nov 202528,392+9,9501.00
31 Oct 202518,442โˆ’40,4631.00
15 Oct 202558,905โˆ’118,8321.95
30 Sep 2025177,737โˆ’70,9503.73
15 Sep 2025248,687โˆ’143,3919.51
29 Aug 2025392,078โˆ’1,60460.40
15 Aug 2025393,682+53735.04
31 Jul 2025393,145โˆ’9839.68
15 Jul 2025393,243โˆ’2,40530.42
30 Jun 2025395,648โˆ’3,80138.98
13 Jun 2025399,449โˆ’7,1479.02
30 May 2025406,596+1,63925.13
15 May 2025404,957+11,13425.21
30 Apr 2025393,823โˆ’14,20515.53
15 Apr 2025408,028โˆ’30,8477.72
31 Mar 2025438,875+2,53525.19
14 Mar 2025436,340โˆ’9,46822.35
28 Feb 2025445,808+9,86021.28
14 Feb 2025435,948โˆ’3,06216.27
31 Jan 2025439,010+1,52925.31
15 Jan 2025437,481+73515.77
31 Dec 2024436,746+6,01812.56
13 Dec 2024430,728โˆ’15,62926.51
29 Nov 2024446,357+13,93454.86
15 Nov 2024432,423โˆ’3424.43
31 Oct 2024432,457โˆ’1,82039.60
15 Oct 2024434,277+2,20035.25
30 Sep 2024432,077โˆ’19,77140.72
13 Sep 2024451,848โˆ’1,14423.76
30 Aug 2024452,992+20,27519.20
15 Aug 2024432,717โˆ’61134.14
31 Jul 2024433,328+1,56637.02
15 Jul 2024431,762โˆ’1028.48
28 Jun 2024431,864โˆ’2,04119.80
14 Jun 2024433,905โˆ’7,31958.51
31 May 2024441,224โˆ’6,38841.15
15 May 2024447,612+12,63320.31
30 Apr 2024434,979โˆ’24,66325.41
15 Apr 2024459,642+452,4515.25
28 Mar 20247,191+4,1731.00
15 Mar 20243,018โˆ’321.00
29 Feb 20243,050โˆ’3,2871.00
15 Feb 20246,337โˆ’7581.00
31 Jan 20247,095+2,1841.00
12 Jan 20244,911โˆ’15,5301.00
29 Dec 202320,441โˆ’6261.54
15 Dec 202321,067โˆ’9,8271.00
30 Nov 202330,894+2,0031.49
15 Nov 202328,891+23,5361.00
31 Oct 20235,355โˆ’4861.00
13 Oct 20235,841+8791.00
29 Sep 20234,962+1211.00
15 Sep 20234,841โˆ’8,3411.00
31 Aug 202313,182โˆ’4,8821.00
15 Aug 202318,064โˆ’10,9901.00
31 Jul 202329,054โˆ’26,9211.00
14 Jul 202355,975+15,1811.00
30 Jun 202340,794โˆ’15,8401.34
15 Jun 202356,634+46,8961.00
31 May 20239,738โˆ’1921.00
15 May 20239,930โˆ’35,0911.00
28 Apr 202345,021+14,2091.00
14 Apr 202330,812โˆ’8,4611.00
31 Mar 202339,273+2,7251.00
15 Mar 202336,548โˆ’2,9031.00
28 Feb 202339,451โˆ’5,5921.11
15 Feb 202345,043โˆ’68,3461.00
31 Jan 2023113,389+40,2782.75
13 Jan 202373,111+36,0171.00
30 Dec 202237,094โˆ’2011.02
15 Dec 202237,295+5,0051.00
30 Nov 202232,290โˆ’3411.00
15 Nov 202232,631โˆ’3571.00
31 Oct 202232,988+7,6621.00
14 Oct 202225,326โˆ’2,3431.00
30 Sep 202227,669โˆ’19,3321.00
15 Sep 202247,001โˆ’9,0111.00
31 Aug 202256,012+7,5111.00
15 Aug 202248,501โˆ’53,4491.00
29 Jul 2022101,950+1,8121.00
15 Jul 2022100,138+12,8901.00
30 Jun 202287,248+40,3581.00
15 Jun 202246,890+20,7831.00
31 May 202226,107โˆ’4,4581.00
13 May 202230,565โˆ’26,2891.00
29 Apr 202256,854โˆ’32,6551.00
14 Apr 202289,509+59,6311.00
31 Mar 202229,878โˆ’528,1181.00
15 Mar 2022557,996+71,2183.96
28 Feb 2022486,778โˆ’6,7683.74
15 Feb 2022493,546+15,7285.23
31 Jan 2022477,818+2,7933.74
14 Jan 2022475,025+43,8686.28
31 Dec 2021431,157+419,7696.36
15 Dec 202111,388โˆ’401.00
30 Nov 202111,428โˆ’10,9951.00
15 Nov 202122,423โˆ’19,6401.00
29 Oct 202142,063+22,8041.00
15 Oct 202119,259โˆ’6,6471.00
30 Sep 202125,906โˆ’49,6591.00
15 Sep 202175,565+10,4671.26
31 Aug 202165,098+19,0371.00
13 Aug 202146,061+1,1451.00
30 Jul 202144,916โˆ’36,8751.00
15 Jul 202181,791+24,5111.00
30 Jun 202157,280โˆ’9,1881.00
15 Jun 202166,468สณโˆ’65,7501.00
28 May 2021132,218โˆ’22,0661.50
14 May 2021154,284+36,3551.70
30 Apr 2021117,929โˆ’198,0431.76
15 Apr 2021315,972+23,2482.24
31 Mar 2021292,724โˆ’102,4555.30
15 Mar 2021395,179+251,9712.86
26 Feb 2021143,208โˆ’1,5681.12
12 Feb 2021144,776+27,2171.08
29 Jan 2021117,559+24,8831.30
15 Jan 202192,676โˆ’15,0501.00
31 Dec 2020107,726โˆ’21,8031.99
15 Dec 2020129,529โˆ’8,6891.44
30 Nov 2020138,218+26,1621.43
13 Nov 2020112,056+15,7891.00
30 Oct 202096,267โˆ’38,6181.35
15 Oct 2020134,885+3,2001.00
30 Sep 2020131,685โˆ’64,2282.54
15 Sep 2020195,913+41,6561.95
31 Aug 2020154,257โˆ’80,8436.78
14 Aug 2020235,100+110,8782.71
31 Jul 2020124,222+3,2745.90
15 Jul 2020120,948+12,5462.96
30 Jun 2020108,402โˆ’11,7864.31
15 Jun 2020120,188โˆ’38,1443.34
29 May 2020158,332+114,9323.97
15 May 202043,400โˆ’7,0901.62
30 Apr 202050,490โˆ’6,8351.77
15 Apr 202057,325โˆ’72,0221.00
31 Mar 2020129,347+77,1792.05
13 Mar 202052,168+8,6421.00
28 Feb 202043,526+2,2871.00
14 Feb 202041,239+9611.58
31 Jan 202040,278+9,6581.94
15 Jan 202030,620โˆ’4,1921.15
31 Dec 201934,812โˆ’12,9492.96
13 Dec 201947,761+2,5832.17
29 Nov 201945,178+10,1441.00
15 Nov 201935,034โˆ’1,9111.14
31 Oct 201936,945+7,9441.00
15 Oct 201929,001โˆ’2,1851.00
30 Sep 201931,186โˆ’2,8161.00
13 Sep 201934,002+3,9321.00
30 Aug 201930,070โˆ’21,1251.00
15 Aug 201951,195โˆ’10,6901.05
31 Jul 201961,885+7,0782.24
15 Jul 201954,807+6,1621.90
28 Jun 201948,645โˆ’1,2781.50
14 Jun 201949,923+21,7451.00
31 May 201928,178+2,1011.00
15 May 201926,077+3,6981.00
30 Apr 201922,379โˆ’1,9331.00
15 Apr 201924,312+1,3261.00
29 Mar 201922,986+561.00
15 Mar 201922,930โˆ’9661.00
28 Feb 201923,896โˆ’4,7871.00
15 Feb 201928,683+4,7161.00
31 Jan 201923,967โˆ’6,3341.00
15 Jan 201930,301โˆ’10,9751.00
31 Dec 201841,276+21,4641.00
14 Dec 201819,812โˆ’11,8431.00
30 Nov 201831,655โˆ’3,5941.00
15 Nov 201835,249โˆ’29,3891.00
31 Oct 201864,638+10,6781.00
15 Oct 201853,960โˆ’9,2211.00
28 Sep 201863,181โˆ’84,3931.00
14 Sep 2018147,574+104,3422.41
31 Aug 201843,232+4,2811.14
15 Aug 201838,951+5681.00
31 Jul 201838,383โˆ’97,0361.00
13 Jul 2018135,419โˆ’202,1152.22
29 Jun 2018337,534โˆ’14,6863.05
15 Jun 2018352,220+4,1015.81
31 May 2018348,119+5,4095.45
15 May 2018342,710+55,0325.91
30 Apr 2018287,678โˆ’6,6434.33
13 Apr 2018294,321+5,3491.00
29 Mar 2018288,972+121,0601.87
15 Mar 2018167,912+23,7661.19
28 Feb 2018144,146+54,5591.00
15 Feb 201889,587โˆ’17,5771.00
31 Jan 2018107,164โˆ’531.46
12 Jan 2018107,217+45,9971.00
29 Dec 201761,220โ€“1.00

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

Questions

Frequently asked questions

What is IYM's short interest?
82,938 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 10,805 from the previous settlement.
Why is there no percentage for IYM?
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 IYM'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.