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HowShorted

BITO short interest NYSE Arca

ProShares Bitcoin ETF. 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
21,370,907
vs previous settlement
โˆ’5,493,386 (-20.4%)
days to cover
1.00
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for BITO: 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
11,722
10 Sep 2026
Highest in window
3,323,644
18 Dec 2025
Days with a balance
172
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for ProShares Bitcoin ETF 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 3.3M shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 202621,370,907โˆ’5,493,3861.00
31 Aug 202626,864,293+5,315,6691.00
14 Aug 202621,548,624โˆ’82,1891.00
31 Jul 202621,630,813โˆ’527,8401.00
15 Jul 202622,158,653+3,603,3231.00
30 Jun 202618,555,330โˆ’1,832,7771.00
15 Jun 202620,388,107โˆ’1,770,7671.00
29 May 202622,158,874+579,7241.00
15 May 202621,579,150โˆ’1,189,4121.00
30 Apr 202622,768,562+6,534,1581.00
15 Apr 202616,234,404โˆ’1,936,6001.00
31 Mar 202618,171,004โˆ’5,167,3411.00
13 Mar 202623,338,345+5,146,9561.00
27 Feb 202618,191,389+5,154,4891.00
13 Feb 202613,036,900โˆ’8,407,2731.00
30 Jan 202621,444,173โˆ’2,815,6481.00
15 Jan 202624,259,821โˆ’8,146,9641.00
31 Dec 202532,406,785+8,916,0581.00
15 Dec 202523,490,727โˆ’6,415,4601.00
28 Nov 202529,906,187+3,152,4321.00
14 Nov 202526,753,755+1,918,3751.00
31 Oct 202524,835,380+3,081,6241.00
15 Oct 202521,753,756โˆ’1,537,1241.00
30 Sep 202523,290,880+2,327,1612.01
15 Sep 202520,963,719+2,105,8971.90
29 Aug 202518,857,822โˆ’518,5701.51
15 Aug 202519,376,392โˆ’382,7871.78
31 Jul 202519,759,179+3,220,5482.06
15 Jul 202516,538,631โˆ’1,517,9801.62
30 Jun 202518,056,611+2,206,6112.73
13 Jun 202515,850,000+1,022,7732.31
30 May 202514,827,227+2,885,6591.73
15 May 202511,941,568โˆ’1,294,7572.16
30 Apr 202513,236,325โˆ’754,7772.42
15 Apr 202513,991,102โˆ’1,263,4321.66
31 Mar 202515,254,534โˆ’3,477,2433.46
14 Mar 202518,731,777+479,2721.85
28 Feb 202518,252,505โˆ’259,9951.71
14 Feb 202518,512,500+1,747,3582.25
31 Jan 202516,765,142โˆ’987,8741.65
15 Jan 202517,753,016+2,351,5242.22
31 Dec 202415,401,492โˆ’950,0471.49
13 Dec 202416,351,539+2,314,7701.72
29 Nov 202414,036,769+2,659,2901.00
15 Nov 202411,377,479โˆ’300,0771.00
31 Oct 202411,677,556โˆ’514,6371.13
15 Oct 202412,192,193โˆ’1,130,5601.53
30 Sep 202413,322,753+1,248,3831.79
13 Sep 202412,074,370โˆ’1,087,6591.47
30 Aug 202413,162,029+420,8811.77
15 Aug 202412,741,148โˆ’3,714,0051.19
31 Jul 202416,455,153+3,887,4931.98
15 Jul 202412,567,660โˆ’2,804,8811.23
28 Jun 202415,372,541+279,9841.81
14 Jun 202415,092,557โˆ’1,293,5812.10
31 May 202416,386,138+2,200,0592.26
15 May 202414,186,079+1,316,3951.58
30 Apr 202412,869,684+1,004,9141.36
15 Apr 202411,864,770+4,228,4601.00
28 Mar 20247,636,310โˆ’916,5771.00
15 Mar 20248,552,887+363,6861.00
29 Feb 20248,189,201สณ+1,763,3901.00
15 Feb 20246,425,811โˆ’4,072,2381.00
31 Jan 202410,498,049โˆ’15,849,3691.00
12 Jan 202426,347,418โˆ’740,1981.00
29 Dec 202327,087,616+2,253,5211.54
15 Dec 202324,834,095+5,298,2931.51
30 Nov 202319,535,802+2,268,1081.49
15 Nov 202317,267,694โˆ’396,2981.07
31 Oct 202317,663,992+530,4841.21
13 Oct 202317,133,508+1,910,4513.10
29 Sep 202315,223,057โˆ’263,7302.93
15 Sep 202315,486,787โˆ’1,343,7842.29
31 Aug 202316,830,571+822,3581.09
15 Aug 202316,008,213+915,8272.73
31 Jul 202315,092,386โˆ’1,437,0072.60
14 Jul 202316,529,393โˆ’4,484,4761.44
30 Jun 202321,013,869+1,270,1891.37
15 Jun 202319,743,680+784,3082.95
31 May 202318,959,372+2,235,4392.88
15 May 202316,723,933โˆ’1,082,4261.51
28 Apr 202317,806,359โˆ’56,1491.86
14 Apr 202317,862,508โˆ’892,7361.76
31 Mar 202318,755,244โˆ’260,6941.34
15 Mar 202319,015,938+602,2871.49
28 Feb 202318,413,651+1,354,5461.59
15 Feb 202317,059,105+44,8551.62
31 Jan 202317,014,250+853,1451.52
13 Jan 202316,161,105โˆ’656,7312.98
30 Dec 202216,817,836โˆ’944,4535.18
15 Dec 202217,762,289+1,403,4963.55
30 Nov 202216,358,793+36,1822.82
15 Nov 202216,322,611โˆ’432,9921.00
31 Oct 202216,755,603+1,788,1222.58
14 Oct 202214,967,481โˆ’1,287,6632.15
30 Sep 202216,255,144โˆ’2,129,1432.25
15 Sep 202218,384,287+1,793,5892.52
31 Aug 202216,590,698+2,623,1863.44
15 Aug 202213,967,512+245,8342.19
29 Jul 202213,721,678โˆ’334,5581.48
15 Jul 202214,056,236+371,2441.79
30 Jun 202213,684,992โˆ’1,829,7661.41
15 Jun 202215,514,758โˆ’86,1021.58
31 May 202215,600,860+2,884,0862.16
13 May 202212,716,774+2,328,7471.32
29 Apr 202210,388,027+1,096,6671.73
14 Apr 20229,291,360+3,831,5631.78
31 Mar 20225,459,797โˆ’149,0501.00
15 Mar 20225,608,847โˆ’1,721,3981.00
28 Feb 20227,330,245+299,8531.00
15 Feb 20227,030,392โˆ’809,9201.01
31 Jan 20227,840,312+802,8761.00
14 Jan 20227,037,436+2,192,9401.00
31 Dec 20214,844,496โˆ’722,2411.00
15 Dec 20215,566,737+2,987,8781.00
30 Nov 20212,578,859+1,302,6541.00
15 Nov 20211,276,205+610,5161.00
29 Oct 2021665,689โ€“1.00

Scroll inside the table for earlier settlements, back to 29 Oct 2021.

Questions

Frequently asked questions

What is BITO's short interest?
21,370,907 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 5,493,386 from the previous settlement.
Why is there no percentage for BITO?
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 BITO'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.

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.