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HowShorted

IWMW short interest Cboe BZX

iShares Russell 2000 BuyWrite. 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
11,583
vs previous settlement
−42,957 (-78.8%)
days to cover
1.00
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for IWMW: 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
78
11 Sep 2026
Highest in window
30,417
19 Aug 2026
Days with a balance
114
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for iShares Russell 2000 BuyWrite 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 30K shares.

History

Every FINRA settlement we hold for IWMW, newest first.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 202611,583−42,9571.00
31 Aug 202654,540+21,0532.60
14 Aug 202633,487−4,6762.02
31 Jul 202638,163+22,8863.46
15 Jul 202615,277−31,5161.26
30 Jun 202646,793+38,7152.34
15 Jun 20268,078+4,8831.00
29 May 20263,195−9701.00
15 May 20264,165−6,1381.00
30 Apr 202610,303−4,6341.06
15 Apr 202614,937+13,2761.36
31 Mar 20261,661+1,1561.00
13 Mar 2026505−33,9441.00
27 Feb 202634,449+33,8832.01
13 Feb 2026566−2,8151.00
30 Jan 20263,381−8,1741.00
15 Jan 202611,555+9,0121.00
31 Dec 20252,543−6071.00
15 Dec 20253,150−971.00
28 Nov 20253,247−6,8361.00
14 Nov 202510,083+7761.00
31 Oct 20259,307−1,6071.29
15 Oct 202510,914+1,3541.00
30 Sep 20259,560+3,9131.30
15 Sep 20255,647+4091.00
29 Aug 20255,238+4,7321.00
15 Aug 2025506−1,6021.00
31 Jul 20252,108+2801.00
15 Jul 20251,828−2161.00
30 Jun 20252,044+6881.00
13 Jun 20251,356+551.00
30 May 20251,301−8,0891.00
15 May 20259,390+5,7353.62
30 Apr 20253,655+2,3381.34
15 Apr 20251,317+8651.00
31 Mar 2025452−3,7011.00
14 Mar 20254,153−801.00
28 Feb 20254,233−5161.00
14 Feb 20254,749−4061.00
31 Jan 20255,155−3711.62
15 Jan 20255,526−1,0472.10
31 Dec 20246,573+4,7891.13
13 Dec 20241,784−2,9581.00
29 Nov 20244,742+6911.00
15 Nov 20244,051+4,0091.03
31 Oct 202442−3,7481.00
15 Oct 20243,790+3,3051.28
30 Sep 2024485−1231.00
13 Sep 2024608−8211.00
30 Aug 20241,429+1,2211.00
15 Aug 2024208−1,9881.00
31 Jul 20242,196+6071.00
15 Jul 20241,589+5361.00
28 Jun 20241,053+8801.00
14 Jun 2024173−9,7811.00
31 May 20249,954+7,4903.94
15 May 20242,464+2,2821.18
30 Apr 2024182−1481.00
15 Apr 2024330−1,3181.00
28 Mar 20241,648–1.02

Scroll inside the table for earlier settlements, back to 28 Mar 2024.

Questions

Frequently asked questions

What is IWMW's short interest?
11,583 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 42,957 from the previous settlement.
Why is there no percentage for IWMW?
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 IWMW'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.

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