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HowShorted

MRGR short interest Cboe BZX

ProShares Merger 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
1,251
vs previous settlement
โˆ’710 (-36.2%)
days to cover
1.00
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for MRGR: 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
273
14 Sep 2026
Highest in window
26,098
18 Feb 2026
Days with a balance
101
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for ProShares Merger 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 26K shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20261,251โˆ’7101.00
31 Aug 20261,961+6771.32
14 Aug 20261,284โˆ’3331.37
31 Jul 20261,617โˆ’4151.47
15 Jul 20262,032+1653.92
30 Jun 20261,867โˆ’7891.74
15 Jun 20262,656โˆ’8461.40
29 May 20263,502โˆ’2713.77
15 May 20263,773+5391.89
30 Apr 20263,234โˆ’5322.26
15 Apr 20263,766+1,6423.79
31 Mar 20262,124+535.22
13 Mar 20262,071+2481.02
27 Feb 20261,823โˆ’22,3101.00
13 Feb 202624,133+20,1987.93
30 Jan 20263,935+3411.52
15 Jan 20263,594+1,0811.00
31 Dec 20252,513โˆ’2,5663.24
15 Dec 20255,079โˆ’5733.00
28 Nov 20255,652+3,8454.81
14 Nov 20251,807โˆ’1,4182.58
31 Oct 20253,225+2,0373.03
15 Oct 20251,188+1,0381.00
30 Sep 2025150+1291.00
15 Sep 202521โˆ’7411.00
29 Aug 2025762+4901.00
15 Aug 2025272+1481.00
31 Jul 2025124โˆ’281.00
15 Jul 2025152+501.00
30 Jun 2025102โˆ’501.00
13 Jun 2025152โˆ’291.00
30 May 2025181โˆ’271.00
15 May 2025208+661.00
30 Apr 2025142โˆ’71.00
15 Apr 2025149+851.00
31 Mar 202564โˆ’6201.00
14 Mar 2025684+1981.00
28 Feb 2025486โˆ’1,4691.00
14 Feb 20251,955+1,7923.57
31 Jan 2025163โˆ’1191.00
15 Jan 2025282โˆ’301.00
31 Dec 2024312โˆ’331.00
13 Dec 2024345+2121.00
29 Nov 2024133โˆ’2101.00
15 Nov 2024343+1391.00
31 Oct 2024204โˆ’5041.00
15 Oct 2024708โˆ’1651.00
30 Sep 2024873โˆ’781.00
13 Sep 2024951+2991.52
30 Aug 2024652+2111.30
15 Aug 2024441โˆ’1221.00
31 Jul 2024563+2641.00
15 Jul 2024299+991.00
28 Jun 2024200+151.00
14 Jun 2024185+91.18
31 May 2024176โˆ’1,3201.00
15 May 20241,496โˆ’641.65
30 Apr 20241,560+4587.65
15 Apr 20241,102โˆ’9881.48
28 Mar 20242,090+1,2411.15
15 Mar 2024849+1871.00
29 Feb 2024662+801.00
15 Feb 2024582โˆ’4,5311.00
31 Jan 20245,113+5,0221.39
29 Dec 202391+11.00
15 Dec 202390+421.00
30 Nov 202348โˆ’5821.00
15 Nov 2023630สณโˆ’48,2461.00
31 Oct 202348,876โˆ’26321.93
13 Oct 202349,139+18,38455.65
29 Sep 202330,755+19,8791.00
15 Sep 202310,876โˆ’11,39511.91
31 Aug 202322,271โˆ’6,87743.50
15 Aug 202329,148+2,89242.12
31 Jul 202326,256โˆ’4,2607.56
14 Jul 202330,516+2,37217.33
30 Jun 202328,144+28,11812.37
15 Jun 20232601.00
31 May 202326โˆ’4251.00
15 May 2023451+4041.00
28 Apr 202347โˆ’2661.00
14 Apr 2023313โˆ’8211.00
31 Mar 20231,134โˆ’9,4801.00
15 Mar 202310,614โˆ’3,0695.65
28 Feb 202313,683+31132.97
15 Feb 202313,372+6,6864.95
31 Jan 20236,686โˆ’28,9724.42
15 Dec 202235,658+14,12410.91
30 Nov 202221,53401.22
15 Nov 202221,534โˆ’6594.47
31 Oct 202222,193+7574.90
14 Oct 202221,436+7,3875.08
30 Sep 202214,049โˆ’10,6273.91
15 Sep 202224,676โˆ’18,0856.24
31 Aug 202242,761+21,22014.03
15 Aug 202221,541+12,7454.67
29 Jul 20228,796โˆ’57,2931.17
15 Jul 202266,089+19,9411.00
30 Jun 202246,148+35,6664.70
15 Jun 202210,482โˆ’25,2431.09
31 May 202235,725+10,6752.64
13 May 202225,050โˆ’2,5951.85
29 Apr 202227,645โˆ’1,7212.38
14 Apr 202229,366+16,8763.28
31 Mar 202212,490โˆ’3,9051.27
15 Mar 202216,395โˆ’10,9902.43
28 Feb 202227,385+6,7102.31
15 Feb 202220,675+8,2121.69
31 Jan 202212,463โˆ’14,4211.08
14 Jan 202226,884+19,9831.92
31 Dec 20216,901โˆ’67,8751.00
15 Dec 202174,776+27,9884.48
30 Nov 202146,788+23,5085.54
15 Nov 202123,280+7,0452.30
29 Oct 202116,235+2,4362.06
15 Oct 202113,799โˆ’27,0822.01
30 Sep 202140,881+17,1336.37
15 Sep 202123,748+2,1234.55
31 Aug 202121,625+5,3454.12
13 Aug 202116,280โˆ’10,2801.12
30 Jul 202126,560โˆ’5,2513.15
15 Jul 202131,811+15,7873.55
30 Jun 202116,024โˆ’14,5233.86
15 Jun 202130,547+15,8026.27
28 May 202114,745โˆ’1,3363.78
14 May 202116,081+5,9113.05
30 Apr 202110,170+6,6322.36
15 Apr 20213,538+1,7231.00
31 Mar 20211,815โˆ’24,6401.00
15 Mar 202126,455+19,5714.91
26 Feb 20216,884โˆ’16,3941.00
12 Feb 202123,278+23,2551.00
29 Jan 202123โˆ’571.00
13 Nov 202080+451.00
15 Oct 202035โˆ’4491.00
31 Aug 2020484+141.00
14 Aug 2020470+3701.00
31 Jul 2020100โˆ’8271.00
30 Jun 2020927โˆ’28,5871.00
15 May 202029,514+15,96311.84
30 Apr 202013,551+12,6594.73
15 Apr 2020892+383.23
31 Mar 2020854โˆ’13,6581.00
13 Mar 202014,512+13,7742.63
28 Feb 2020738+7121.10
15 Nov 201926โˆ’4231.00
30 Sep 2019449โˆ’6231.00
13 Sep 20191,072โˆ’5741.58
30 Aug 20191,646โˆ’1,2425.94
15 Aug 20192,888+2,7621.14
28 Jun 2019126โˆ’4261.00
14 Jun 2019552โˆ’1,2211.00
31 May 20191,773+4981.67
15 May 20191,275โˆ’2,4322.35
30 Apr 20193,707โˆ’2041.57
15 Apr 20193,911โˆ’7,0362.36
29 Mar 201910,947โˆ’2,9107.88
15 Mar 201913,857+1,96310.14
28 Feb 201911,894โˆ’7,5276.42
15 Feb 201919,421+4,5449.27
31 Jan 201914,877โˆ’7,3972.89
15 Jan 201922,274+10,4324.72
31 Dec 201811,842+2,79911.19
14 Dec 20189,043โˆ’9,7602.02
30 Nov 201818,803+13,0446.40
15 Nov 20185,759+3,6281.80
31 Oct 20182,131โˆ’1,0261.90
15 Oct 20183,157+2,6776.12
28 Sep 201848003.00
14 Sep 2018480+3241.00
31 Aug 2018156+701.00
15 Aug 201886+151.00
31 Jul 201871โˆ’181.00
13 Jul 201889+841.00
29 Jun 20185+41.00
15 Jun 2018101.00
31 May 2018101.00
15 May 20181โˆ’4141.00
30 Apr 2018415โˆ’1171.40
13 Apr 2018532โˆ’411.36
29 Mar 2018573โˆ’110.05
15 Mar 2018574+1711.27
28 Feb 2018403โˆ’2144.91
15 Feb 2018617+4141.64
31 Jan 2018203โˆ’391.68
12 Jan 2018242โˆ’1069.31
29 Dec 2017348โ€“1.21

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

Questions

Frequently asked questions

What is MRGR's short interest?
1,251 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 710 from the previous settlement.
Why is there no percentage for MRGR?
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 MRGR'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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