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HowShorted

XBIL 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
44,685
vs previous settlement
โˆ’16,290 (-26.7%)
days to cover
1.00
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for XBIL: 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
1,351
9 Sep 2026
Highest in window
55,782
14 Jan 2026
Days with a balance
110
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 56K shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 202644,685โˆ’16,2901.00
31 Aug 202660,975+40,4061.00
14 Aug 202620,569โˆ’47,5241.00
31 Jul 202668,093+8,4941.00
15 Jul 202659,599+18,4291.00
30 Jun 202641,170โˆ’39,4701.00
15 Jun 202680,640+36,3321.00
29 May 202644,308โˆ’12,8201.00
15 May 202657,128โˆ’42,5441.00
30 Apr 202699,672+75,9511.00
15 Apr 202623,721โˆ’23,0121.00
31 Mar 202646,733+24,1331.00
13 Mar 202622,600+15,2481.00
27 Feb 20267,352โˆ’3,3991.00
13 Feb 202610,751โˆ’36,2821.00
30 Jan 202647,033+14,7371.00
15 Jan 202632,296+23,9721.00
31 Dec 20258,324โˆ’45,7761.00
15 Dec 202554,100+8,7841.00
28 Nov 202545,316+33,5741.00
14 Nov 202511,742โˆ’5,0021.00
31 Oct 202516,744โˆ’11,6891.00
15 Oct 202528,433โˆ’37,1341.00
30 Sep 202565,567+48,6601.00
15 Sep 202516,907+13,2111.00
29 Aug 20253,696โˆ’14,2471.00
15 Aug 202517,943โˆ’64,5961.00
31 Jul 202582,539+29,1921.00
15 Jul 202553,347+34,0721.00
30 Jun 202519,275โˆ’1,8031.00
13 Jun 202521,078โˆ’1,7621.00
30 May 202522,840โˆ’22,1271.00
15 May 202544,967+16,7711.00
30 Apr 202528,196+8,2021.00
15 Apr 202519,994โˆ’17,1031.00
31 Mar 202537,097+7,2551.00
14 Mar 202529,842โˆ’8,2911.00
28 Feb 202538,133+7,1251.00
14 Feb 202531,008โˆ’2,5831.00
31 Jan 202533,591โˆ’5,3161.00
15 Jan 202538,907โˆ’31,0051.00
31 Dec 202469,912+59,1291.00
13 Dec 202410,783โˆ’11,7811.00
29 Nov 202422,564โˆ’38,5621.00
15 Nov 202461,126+33,9721.00
31 Oct 202427,154โˆ’8,5101.00
15 Oct 202435,664โˆ’95,4371.00
30 Sep 2024131,101+103,0061.06
13 Sep 202428,095+12,6621.00
30 Aug 202415,433โˆ’21,6631.00
15 Aug 202437,096+24,5781.00
31 Jul 202412,518โˆ’9731.00
15 Jul 202413,491โˆ’2,7261.00
28 Jun 202416,217โˆ’25,0331.00
14 Jun 202441,250+33,5171.00
31 May 20247,733โˆ’12,8611.00
15 May 202420,594โˆ’11,0171.00
30 Apr 202431,611+30,4211.00
15 Apr 20241,190+1,0211.00
28 Mar 2024169โˆ’5,9281.00
15 Mar 20246,097โˆ’5,1701.00
29 Feb 202411,267+1,4681.00
15 Feb 20249,799โˆ’2,0481.00
31 Jan 202411,847โˆ’203,7891.00
12 Jan 2024215,636+106,3491.21
29 Dec 2023109,287+99,8821.00
15 Dec 20239,405โˆ’4,4671.00
30 Nov 202313,872โˆ’102,4001.00
15 Nov 2023116,272สณโˆ’85,1581.00
31 Oct 2023201,430+135,8711.00
13 Oct 202365,559โˆ’33,4371.00
29 Sep 202398,996+48,9451.00
15 Sep 202350,051โˆ’59,6621.00
31 Aug 2023109,713โˆ’31,9461.00
15 Aug 2023141,659+16,9941.08
31 Jul 2023124,665+30,4251.19
14 Jul 202394,240โˆ’49,1501.00
30 Jun 2023143,390+46,3602.24
15 Jun 202397,030+80,6072.02
31 May 202316,423โˆ’7,2021.00
15 May 202323,625+2,7541.00
28 Apr 202320,871+5,6881.00
14 Apr 202315,183โˆ’24,6171.00
31 Mar 202339,800+23,0451.19
15 Mar 202316,755โ€“1.00

Scroll inside the table for earlier settlements, back to 15 Mar 2023.

Questions

Frequently asked questions

What is XBIL's short interest?
44,685 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 16,290 from the previous settlement.
Why is there no percentage for XBIL?
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 XBIL'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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