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HowShorted

OBIL short interest Nasdaq Global Market

The RBB Fund, Inc. US Treasury. FINRA's reported shares short for this symbol, twice a month by settlement date, shown as the regulator publishes them. No percentage is shown: no SEC filer maps to the symbol (funds, notes, preferreds, warrants and foreign listings).

Shares short
76,184
vs previous settlement
+6,779 (+9.8%)
days to cover
2.11
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for OBIL: 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
360
14 Sep 2026
Highest in window
13,603
15 Jul 2026
Days with a balance
88
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for The RBB Fund, Inc. US Treasury 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 14K shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 202676,184+6,7792.11
31 Aug 202669,405+43,7291.85
14 Aug 202625,676+5,0811.00
31 Jul 202620,595โˆ’6,1751.00
15 Jul 202626,770+15,7901.00
30 Jun 202610,980โˆ’21,1631.00
15 Jun 202632,143โˆ’1521.00
29 May 202632,295โˆ’7,6301.00
15 May 202639,925โˆ’2671.15
30 Apr 202640,192+20,1511.05
15 Apr 202620,041โˆ’1,0511.00
31 Mar 202621,092+1,6511.00
13 Mar 202619,441โˆ’15,1161.00
27 Feb 202634,557+14,4221.00
13 Feb 202620,135+11,5831.00
30 Jan 20268,552โˆ’61,9731.00
15 Jan 202670,525+61,0101.60
31 Dec 20259,515+9,2011.00
15 Dec 2025314โˆ’22,9161.00
28 Nov 202523,230+10,6331.00
14 Nov 202512,597โˆ’6,5921.00
31 Oct 202519,189+15,0171.00
15 Oct 20254,172โˆ’43,3671.00
30 Sep 202547,539+29,4601.32
15 Sep 202518,079+1,1391.00
29 Aug 202516,940โˆ’3,7281.00
15 Aug 202520,668โˆ’8,8871.00
31 Jul 202529,555+16,3401.16
15 Jul 202513,215+10,1471.00
30 Jun 20253,068+1,3851.00
13 Jun 20251,683โˆ’12,0831.00
30 May 202513,766โˆ’641.00
15 May 202513,830โˆ’7,9901.00
30 Apr 202521,820+1,5211.00
15 Apr 202520,299โˆ’7,4351.00
31 Mar 202527,734โˆ’6,5361.00
14 Mar 202534,270+18,3671.00
28 Feb 202515,903โˆ’45,0281.00
14 Feb 202560,931+5,4511.29
31 Jan 202555,480โˆ’31,6071.43
15 Jan 202587,087+13,8612.08
31 Dec 202473,226+64,2601.26
13 Dec 20248,966+5,7191.00
29 Nov 20243,247โˆ’11,2181.00
15 Nov 202414,465โˆ’12,2571.00
31 Oct 202426,722โˆ’46,6611.03
15 Oct 202473,383+24,5811.00
30 Sep 202448,802+48,4581.00
13 Sep 2024344โˆ’6,9261.00
30 Aug 20247,270โˆ’29,7501.00
15 Aug 202437,020+31,9941.00
31 Jul 20245,026โˆ’9,4021.00
15 Jul 202414,428+4,4161.00
28 Jun 202410,012โˆ’5931.00
14 Jun 202410,605โˆ’6,8721.00
31 May 202417,477+9,5941.00
15 May 20247,883+4,0511.00
30 Apr 20243,832+3,4061.00
15 Apr 2024426โˆ’1521.00
28 Mar 2024578โˆ’4901.00
15 Mar 20241,068โˆ’1,5181.00
29 Feb 20242,586+1,6951.00
15 Feb 2024891โˆ’7421.00
31 Jan 20241,633โˆ’3,0281.00
12 Jan 20244,661+2,9671.00
29 Dec 20231,694โˆ’10,9981.00
15 Dec 202312,692+10,9171.00
30 Nov 20231,775โˆ’12,5551.00
15 Nov 202314,330สณโˆ’28,9861.00
31 Oct 202343,316+11,3311.00
13 Oct 202331,985+12,5801.00
29 Sep 202319,405โˆ’12,7581.00
15 Sep 202332,163โˆ’19,4171.03
31 Aug 202351,580+21,1401.93
15 Aug 202330,440+12,3141.18
31 Jul 202318,126โˆ’59,2051.00
14 Jul 202377,331+36,4602.45
30 Jun 202340,871+38,7141.52
15 Jun 20232,157โˆ’5,3211.00
31 May 20237,478+5,1921.00
15 May 20232,286โˆ’8,5221.00
28 Apr 202310,808โˆ’6,9371.00
14 Apr 202317,745+1,6461.00
31 Mar 202316,099+13,2611.00
15 Mar 20232,838โˆ’4,3451.00
28 Feb 20237,183โˆ’9,7871.00
15 Feb 202316,970+7,0201.17
31 Jan 20239,950+4,4891.01
13 Jan 20235,461โˆ’4081.00
30 Dec 20225,869+2,3441.00
15 Dec 20223,525+3,0431.00
30 Nov 2022482โ€“1.00

Scroll inside the table for earlier settlements, back to 30 Nov 2022.

Questions

Frequently asked questions

What is OBIL's short interest?
76,184 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 6,779 from the previous settlement.
Why is there no percentage for OBIL?
Because no defensible share count exists to divide by: no SEC filer maps to the symbol (funds, notes, preferreds, warrants and foreign listings). No SEC filer maps to this symbol in EDGAR's ticker file. That is the normal case for funds, exchange-traded notes, preferred shares, warrants, units and foreign listings, none of which file a share count we could divide by.
What is OBIL's days to cover?
2.11 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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