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HowShorted

HIMU short interest Cboe BZX

iShares High Yield Muni Active. 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
140,798
vs previous settlement
−152,545 (-52.0%)
days to cover
1.00
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for HIMU: 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
6,037
8 Sep 2026
Highest in window
245,632
12 Aug 2026
Days with a balance
126
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for iShares High Yield Muni Active 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 246K shares.

History

Every FINRA settlement we hold for HIMU, newest first.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 2026140,798−152,5451.00
31 Aug 2026293,343−299,3271.00
14 Aug 2026592,670+490,4491.36
31 Jul 2026102,221−45,8871.00
15 Jul 2026148,108+65,0371.00
30 Jun 202683,071+31,7771.00
15 Jun 202651,294−49,8761.00
29 May 2026101,170−41,3231.00
15 May 2026142,493−75,6321.00
30 Apr 2026218,125+78,6901.00
15 Apr 2026139,435+124,9151.00
31 Mar 202614,520+14,3161.00
13 Mar 2026204−63,8591.00
27 Feb 202664,063−12,8211.00
13 Feb 202676,884−6,0751.00
30 Jan 202682,959−132,5381.00
15 Jan 2026215,497+213,0871.00
31 Dec 20252,410−39,4061.00
15 Dec 202541,816+13,3351.00
28 Nov 202528,481−42,9711.00
14 Nov 202571,452+18,6521.00
31 Oct 202552,800−8,7851.00
15 Oct 202561,585+20,5661.00
30 Sep 202541,019−61,1841.00
15 Sep 2025102,203+71,3191.00
29 Aug 202530,884−19,1511.00
15 Aug 202550,035−9591.00
31 Jul 202550,994+2,4051.00
15 Jul 202548,589−16,2311.00
30 Jun 202564,820+12,2051.00
13 Jun 202552,615−6551.00
30 May 202553,270−73,7911.00
15 May 2025127,061+83,2661.00
30 Apr 202543,795−35,4211.00
15 Apr 202579,216+65,9261.00
31 Mar 202513,290−69,5431.00
14 Mar 202582,833−664,3781.00
28 Feb 2025747,211+746,6511.00
14 Feb 2025560–1.00

Scroll inside the table for earlier settlements, back to 14 Feb 2025.

Questions

Frequently asked questions

What is HIMU's short interest?
140,798 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 152,545 from the previous settlement.
Why is there no percentage for HIMU?
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 HIMU'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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