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HowShorted

SIZE short interest NYSE Arca

iShares MSCI USA Size Factor 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
59,111
vs previous settlement
−7,844 (-11.7%)
days to cover
13.55
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for SIZE: 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
564
8 Sep 2026
Highest in window
10,165
25 Mar 2026
Days with a balance
143
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for iShares MSCI USA Size Factor 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 10K shares.

History

Every FINRA settlement we hold for SIZE, newest first.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 202659,111−7,84413.55
31 Aug 202666,955+6,13314.79
14 Aug 202660,822+18,0608.68
31 Jul 202642,762−2,3529.47
15 Jul 202645,114+3,3508.95
30 Jun 202641,764+1017.72
15 Jun 202641,663−15,3709.84
29 May 202657,033−36,0905.98
15 May 202693,123−10,77315.32
30 Apr 2026103,896+2,49719.64
15 Apr 2026101,399−98014.77
31 Mar 2026102,379+39,2009.13
13 Mar 202663,179+6,87811.47
27 Feb 202656,301+1,47012.15
13 Feb 202654,831+4,63312.70
30 Jan 202650,198+2,99611.02
15 Jan 202647,202+2848.49
31 Dec 202546,918−45,6616.38
15 Dec 202592,579+17,64313.79
28 Nov 202574,936−2,17012.71
14 Nov 202577,106−3,45210.16
31 Oct 202580,558+8,80818.41
15 Oct 202571,750−5,98614.36
30 Sep 202577,736−7,36312.31
15 Sep 202585,099−7,17617.66
29 Aug 202592,275+73818.50
15 Aug 202591,537−4,87615.30
31 Jul 202596,413+44,3836.33
15 Jul 202552,030+7,90412.01
30 Jun 202544,126+15,17511.33
13 Jun 202528,951+79610.28
30 May 202528,155−3,6964.86
15 May 202531,851+15,8731.44
30 Apr 202515,978+372.92
15 Apr 202515,941+3,4241.00
31 Mar 202512,517+1621.71
14 Mar 202512,355−6,1381.50
28 Feb 202518,493−10,4584.69
14 Feb 202528,951+2,4815.94
31 Jan 202526,470+3,6082.49
15 Jan 202522,862−3,8534.48
31 Dec 202426,715+1,9704.35
13 Dec 202424,745+7,2865.69
29 Nov 202417,459−8,0853.00
15 Nov 202425,544+2,9704.35
31 Oct 202422,574+2,7284.55
15 Oct 202419,846−7,5356.67
30 Sep 202427,381+5426.62
13 Sep 202426,839+5,8765.09
30 Aug 202420,963+9396.28
15 Aug 202420,024+5,9633.89
31 Jul 202414,061+1,9003.24
15 Jul 202412,161−7,5063.04
28 Jun 202419,667−2,9853.31
14 Jun 202422,652+21,3463.04
31 May 20241,306−7,5161.00
15 May 20248,822+4,0781.00
30 Apr 20244,744+9971.30
15 Apr 20243,747−2,5341.00
28 Mar 20246,281+4,1041.00
15 Mar 20242,177−6,0421.00
29 Feb 20248,219+5,4211.00
15 Feb 20242,798−4,2951.00
31 Jan 20247,093−7,9471.00
12 Jan 202415,040−19,2031.13
29 Dec 202334,243−20,2681.75
15 Dec 202354,511+54,2471.00
30 Nov 2023264−3,5821.00
15 Nov 20233,846+1,8481.00
31 Oct 20231,998−50,0861.00
13 Oct 202352,084+38,2743.96
29 Sep 202313,810+2171.00
15 Sep 202313,593−1,0641.62
31 Aug 202314,657+3042.23
15 Aug 202314,353−3,1222.34
31 Jul 202317,475+9242.92
14 Jul 202316,551+1,9083.45
30 Jun 202314,643−4,2673.45
15 Jun 202318,910+3,2742.77
31 May 202315,636−1,8723.94
15 May 202317,508+7742.58
28 Apr 202316,734−8344.69
14 Apr 202317,568−4,5311.57
31 Mar 202322,099+2,9545.00
15 Mar 202319,145−7,2092.05
28 Feb 202326,354+1,6714.48
15 Feb 202324,683+5,4941.50
31 Jan 202319,189−6951.65
13 Jan 202319,884−3,4923.13
30 Dec 202223,376−3,5054.53
15 Dec 202226,881+2,9392.14
30 Nov 202223,942+4,5653.99
15 Nov 202219,377−14,4332.96
31 Oct 202233,810+5502.66
14 Oct 202233,260−2664.04
30 Sep 202233,526−894.47
15 Sep 202233,615+8335.17
31 Aug 202232,782+2,1128.29
15 Aug 202230,670+1,3484.11
29 Jul 202229,322−3315.61
15 Jul 202229,653−7063.32
30 Jun 202230,359+3,5551.64
15 Jun 202226,804+2,5932.55
31 May 202224,211−5,3861.00
13 May 202229,597+1,5051.67
29 Apr 202228,092+2,4441.73
14 Apr 202225,648−1,1181.90
31 Mar 202226,766−1,8631.00
15 Mar 202228,629−7221.44
28 Feb 202229,351+3051.92
15 Feb 202229,046+7,4811.00
31 Jan 202221,565−9,8601.00
14 Jan 202231,425+2,2821.24
31 Dec 202129,143−971.00
15 Dec 202129,240+2,9631.00
30 Nov 202126,277−8942.12
15 Nov 202127,171−1,0501.72
29 Oct 202128,221−9,9251.00
15 Oct 202138,146+9,6561.18
30 Sep 202128,490−7,5081.98
15 Sep 202135,998+17,0941.00
31 Aug 202118,904+7,0161.48
13 Aug 202111,888+6311.00
30 Jul 202111,257+8,3711.00
15 Jul 20212,886−4,7911.00
30 Jun 20217,677+1,9511.00
15 Jun 20215,726−2,4291.00
28 May 20218,155+2781.00
14 May 20217,877−4591.00
30 Apr 20218,336−9,2501.00
15 Apr 202117,586−34,9001.00
31 Mar 202152,486−343,7241.00
15 Mar 2021396,210+71,7225.40
26 Feb 2021324,488+34,3363.75
12 Feb 2021290,152+82,9332.54
29 Jan 2021207,219+140,2751.18
15 Jan 202166,944+28,7221.00
31 Dec 202038,222−5,1991.00
15 Dec 202043,421−41,8901.01
30 Nov 202085,311+35,2071.00
13 Nov 202050,104+5,5611.00
30 Oct 202044,543−37,6481.00
15 Oct 202082,191−166,7211.00
30 Sep 2020248,912+215,1094.12
15 Sep 202033,803−4,3541.00
31 Aug 202038,157−26,6201.45
14 Aug 202064,777−56,4581.00
31 Jul 2020121,235−70,6163.06
15 Jul 2020191,851−210,6002.76
30 Jun 2020402,451+144,9735.82
15 Jun 2020257,478+232,3851.25
29 May 202025,093−24,8191.00
15 May 202049,912+46,3941.00
30 Apr 20203,518−15,3531.00
15 Apr 202018,871−197,4271.00
31 Mar 2020216,298+36,5821.44
13 Mar 2020179,716+148,9151.00
28 Feb 202030,801+5,2751.00
14 Feb 202025,526−24,7091.00
31 Jan 202050,235−29,9221.00
15 Jan 202080,157−148,3271.00
31 Dec 2019228,484+112,2093.75
13 Dec 2019116,275+46,1771.02
29 Nov 201970,098+68,6281.00
15 Nov 20191,470−29,8641.00
31 Oct 201931,334+23,1741.21
15 Oct 20198,160+1,9011.00
30 Sep 20196,259+5,0831.00
13 Sep 20191,176−3,0111.00
30 Aug 20194,187+3,3411.00
15 Aug 2019846−23,3091.00
31 Jul 201924,155+2841.00
15 Jul 201923,871+7031.23
28 Jun 201923,168+1,1112.50
14 Jun 201922,057−14,9681.00
31 May 201937,025−12,2591.00
15 May 201949,284+28,1241.37
30 Apr 201921,160−6901.00
15 Apr 201921,850−451,1931.00
29 Mar 2019473,043−2,87219.37
15 Mar 2019475,915−150,7654.28
28 Feb 2019626,680+611,0125.05
15 Feb 201915,668+6,1981.00
31 Jan 20199,470−3,7171.00
15 Jan 201913,187+6,9381.00
31 Dec 20186,249−50,5161.00
14 Dec 201856,765+49,3141.00
30 Nov 20187,451+5,5431.00
15 Nov 20181,908+1,0711.00
31 Oct 2018837−2891.00
15 Oct 20181,126−1,3311.00
28 Sep 20182,457−9941.00
14 Sep 20183,451+1,3011.00
31 Aug 20182,150+331.00
15 Aug 20182,117+7361.00
31 Jul 20181,381−6,9581.00
13 Jul 20188,339+5,2661.00
29 Jun 20183,073−3801.00
15 Jun 20183,453+9441.00
31 May 20182,509−2,1631.39
15 May 20184,672−4111.00
30 Apr 20185,083+3,3721.23
13 Apr 20181,711−10,8621.00
29 Mar 201812,573+3621.00
15 Mar 201812,211−1591.30
28 Feb 201812,370−21,4522.53
15 Feb 201833,822+17,2811.00
31 Jan 201816,541+8,7622.10
12 Jan 20187,779−6331.00
29 Dec 20178,412–1.37

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

Questions

Frequently asked questions

What is SIZE's short interest?
59,111 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 7,844 from the previous settlement.
Why is there no percentage for SIZE?
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 SIZE's days to cover?
13.55 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.