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HowShorted

FB short interest Cboe BZX

ProShares S&P 500 Dynamic Buff. 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
1,201
vs previous settlement
โˆ’462 (-27.8%)
days to cover
2.84
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for FB: 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
74
14 Sep 2026
Highest in window
8,708
24 Jun 2026
Days with a balance
100
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for ProShares S&P 500 Dynamic Buff 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 8.7K shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20261,201โˆ’4622.84
31 Aug 20261,663โˆ’4,9311.70
14 Aug 20266,594+6,0622.04
31 Jul 2026532+2121.00
15 Jul 2026320โˆ’6,8081.00
30 Jun 20267,128+7,0994.22
15 Jun 202629โˆ’241.00
29 May 202653โˆ’2151.00
15 May 2026268+281.00
30 Apr 2026240+921.00
15 Apr 2026148+711.00
31 Mar 202677+61.00
13 Mar 202671+541.00
27 Feb 202617โˆ’371.00
13 Feb 202654โˆ’4461.00
30 Jan 2026500+3401.00
15 Jan 2026160+1451.00
31 Dec 202515โˆ’191.00
15 Dec 202534โˆ’31.00
28 Nov 202537โˆ’5321.00
14 Nov 2025569โˆ’2391.00
31 Oct 2025808+7991.00
15 Oct 20259โˆ’4131.00
30 Sep 2025422โˆ’3,2401.00
15 Sep 20253,662+1,2781.00
29 Aug 20252,384+2,0971.00
15 Aug 2025287+861.00
31 Jul 2025201โˆ’3,4431.00
15 Jul 20253,644โˆ’12,9881.00
30 Jun 202516,632โˆ’28,020,0472.17
31 May 202228,036,679โˆ’1,243,9891.01
13 May 202229,280,668โˆ’825,1371.00
29 Apr 202230,105,805+2,496,0071.00
14 Apr 202227,609,798โˆ’2,557,6341.24
31 Mar 202230,167,432โˆ’3,053,0861.00
15 Mar 202233,220,518+2,012,8351.06
28 Feb 202231,207,683โˆ’616,6711.00
15 Feb 202231,824,354+7,281,1571.00
31 Jan 202224,543,197+429,3851.00
14 Jan 202224,113,812โˆ’2,316,5941.34
31 Dec 202126,430,406โˆ’1,516,2541.49
15 Dec 202127,946,660+2,684,0621.28
30 Nov 202125,262,598+1,677,4441.33
15 Nov 202123,585,154โˆ’2,316,6641.05
29 Oct 202125,901,818+1,986,9611.00
15 Oct 202123,914,857โˆ’1,920,4831.01
30 Sep 202125,835,340โˆ’1,452,6611.28
15 Sep 202127,288,001โˆ’263,3412.36
31 Aug 202127,551,342โˆ’1,609,6272.57
13 Aug 202129,160,969+768,2953.00
30 Jul 202128,392,674โˆ’167,5341.56
15 Jul 202128,560,208+948,7352.14
30 Jun 202127,611,473+1,158,2061.58
15 Jun 202126,453,267สณโˆ’719,7081.91
28 May 202127,172,975โˆ’1,977,9851.90
14 May 202129,150,960+2,410,7021.63
30 Apr 202126,740,258สณโˆ’3,858,6051.37
15 Apr 202130,598,863สณ+1,246,4721.86
31 Mar 202129,352,391+1,424,9131.40
15 Mar 202127,927,478+2,903,4821.48
26 Feb 202125,023,996+2,157,6791.58
12 Feb 202122,866,317โˆ’408,8201.65
29 Jan 202123,275,137+3,246,6041.01
15 Jan 202120,028,533โˆ’3,392,7391.06
31 Dec 202023,421,272+194,4621.56
15 Dec 202023,226,810โˆ’279,6211.57
30 Nov 202023,506,431โˆ’2,436,1021.82
13 Nov 202025,942,533+4,232,9761.30
30 Oct 202021,709,557+521,9051.16
15 Oct 202021,187,652โˆ’1,006,2661.25
30 Sep 202022,193,918โˆ’195,6401.02
15 Sep 202022,389,558โˆ’2,850,6481.02
31 Aug 202025,240,206+1,896,2781.02
14 Aug 202023,343,928โˆ’2,663,0841.00
31 Jul 202026,007,012โˆ’664,1801.61
15 Jul 202026,671,192โˆ’3,478,5841.06
30 Jun 202030,149,776+2,444,8671.12
15 Jun 202027,704,909โˆ’2,352,1951.52
29 May 202030,057,104+73,9021.00
15 May 202029,983,202สณ+3,465,8361.78
30 Apr 202026,517,366โˆ’3,943,1121.10
15 Apr 202030,460,478โˆ’702,9651.44
31 Mar 202031,163,443+988,4931.06
13 Mar 202030,174,950+3,880,5251.27
28 Feb 202026,294,425โˆ’689,6601.39
14 Feb 202026,984,085+313,7171.98
31 Jan 202026,670,368+779,4031.58
15 Jan 202025,890,965โˆ’928,1002.12
31 Dec 201926,819,065โˆ’3,110,9662.08
13 Dec 201929,930,031+1,997,8072.77
29 Nov 201927,932,224โˆ’1,400,3072.13
15 Nov 201929,332,531+3,047,3822.29
31 Oct 201926,285,149+96,6181.61
15 Oct 201926,188,531+1,014,8312.15
30 Sep 201925,173,700+115,4871.82
13 Sep 201925,058,213+232,4841.96
30 Aug 201924,825,729โˆ’1,359,1052.23
15 Aug 201926,184,834+930,0071.67
31 Jul 201925,254,827โˆ’995,1191.40
15 Jul 201926,249,946+3,425,5871.95
28 Jun 201922,824,359โˆ’1,780,7161.15
14 Jun 201924,605,075+3,916,9501.08
31 May 201920,688,125โˆ’44,5661.84
15 May 201920,732,691โˆ’758,3721.40
30 Apr 201921,491,063+2,960,1711.00
15 Apr 201918,530,892โˆ’227,4101.28
29 Mar 201918,758,302โˆ’3,174,0241.05
15 Mar 201921,932,326+523,1891.15
28 Feb 201921,409,137โˆ’4,549,7051.50
15 Feb 201925,958,842+2,679,5081.52
31 Jan 201923,279,334โˆ’3,597,9871.00
15 Jan 201926,877,321สณโˆ’7,584,7651.21
31 Dec 201834,462,086+3,414,8951.00
14 Dec 201831,047,191+488,1581.30
30 Nov 201830,559,033+491,0711.07
15 Nov 201830,067,962+1,720,0991.42
31 Oct 201828,347,863โˆ’23,2521.01
15 Oct 201828,371,115+1,721,4061.13
28 Sep 201826,649,709โˆ’1,805,9651.02
14 Sep 201828,455,674สณ+3,160,9161.07
31 Aug 201825,294,758โˆ’2,410,6481.26
15 Aug 201827,705,406โˆ’345,3011.00
31 Jul 201828,050,707+3,753,7571.00
13 Jul 201824,296,950สณโˆ’1,033,3301.59
29 Jun 201825,330,280โˆ’3,237,6911.28
15 Jun 201828,567,971+845,8401.65
31 May 201827,722,131โˆ’1,439,1971.77
15 May 201829,161,328+1,129,7071.40
30 Apr 201828,031,621โˆ’4,049,6451.00
13 Apr 201832,081,266+2,178,2981.00
29 Mar 201829,902,968+3,016,8941.00
15 Mar 201826,886,074+774,4211.52
28 Feb 201826,111,653+748,5831.35
15 Feb 201825,363,070+2,715,2551.00
31 Jan 201822,647,815โˆ’2,411,4001.00
12 Jan 201825,059,215+1,754,0451.18
29 Dec 201723,305,170โ€“2.00

Scroll inside the table for earlier settlements, back to 29 Dec 2017.

Questions

Frequently asked questions

What is FB's short interest?
1,201 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 462 from the previous settlement.
Why is there no percentage for FB?
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 FB's days to cover?
2.84 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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