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Stock research / United States / AJG / Short interest

Arthur J. Gallagher & Co. short interest

7.1M shares of Arthur J. Gallagher & were sold short at the 15 October 2026 settlement, near the middle of its range over the last year (3.8M to 8.2M). Short sellers would need 5.1 days of normal trading to buy them back.

Shares sold short7.1Mat 15 Oct 2026
Change on the settlement before-13.6%+87% over a year
Days to cover5.13at 1.4M shares a day
Of shares in issue2.77%shares short over shares outstanding
New to this? How to read this page
  1. Short interest is the number of shares investors have borrowed and sold, betting the price will fall, and not yet bought back.
  2. Days to cover is shares short over an average day's trading: how many days it would take short sellers to buy them all back. Above 5 or so is high.
  3. Rising short interest says more investors are betting against the stock. A crowded short can also rise fast if shorts rush to buy back.
  4. Brokers report it twice a month to FINRA, about ten days after each settlement date.
  5. What is short interest?

Short interest, days to cover and the price

Short interest is near the middle of its range over the last year (3.8M to 8.2M), and the share price moved -5% over the last year.

Shares sold shortDays to coverShare price

Three charts on one timeline. Top: shares sold short at each settlement. Middle: days to cover, taller meaning shorts would need longer to buy back. Bottom: the share price, so you can see whether shorts added as the price fell or rose.

How it compares

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    The bar ranks every company on the site from the lowest on the left to the highest on the right, in three equal thirds; the small figures under it are the values where each third starts, and the black tick is the middle company. The orange dot is this company; the grey ticks are the other companies in its industry (hover or tap for names). A hatched block is companies tied at none.

    Every settlement since 29 Dec 2017 as a table
    SettlementShares shortChangeAverage daily volumeDays to cover
    15 October 20267.1M-13.6%1.4M5.13
    30 September 20268.2M+29.2%1.5M5.50
    15 September 20266.4M-4.8%1.4M4.51
    31 August 20266.7M+14.5%1.3M5.07
    14 August 20265.8M-6.3%1.3M4.61
    31 July 20266.2M-21.9%1.4M4.55
    15 July 20268.0M+17.2%1.9M4.30
    30 June 20266.8M-0.8%2.0M3.36
    15 June 20266.9M+35.9%1.8M3.82
    29 May 20265.1M-6.3%1.6M3.16
    15 May 20265.4M-9.6%2.2M2.50
    30 April 20266.0M-7.1%1.5M3.88
    15 April 20266.4M+10.2%2.0M3.20
    31 March 20265.8M+16.4%2.2M2.64
    13 March 20265.0M-8.3%2.4M2.13
    27 February 20265.5M+10.5%2.7M1.99
    13 February 20264.9M-13.5%3.4M1.43
    30 January 20265.7M+7.3%2.3M2.51
    15 January 20265.3M+8.3%1.8M2.91
    31 December 20254.9M+26.4%1.5M3.28
    15 December 20253.9M-8.6%1.7M2.28
    28 November 20254.3M+4.3%1.6M2.68
    14 November 20254.1M+8.5%1.8M2.27
    31 October 20253.8M-1.2%2.1M1.81
    15 October 20253.8M-9.1%1.2M3.23
    30 September 20254.2M+21.4%1.4M2.91
    15 September 20253.5M-6.9%1.4M2.48
    29 August 20253.7M+0.1%1.3M2.75
    15 August 20253.7M+51.1%1.7M2.16
    31 July 20252.5M-15.1%1.5M1.59
    15 July 20252.9M+1.9%1.2M2.51
    30 June 20252.8M-12.9%1.8M1.56
    13 June 20253.3M-11.6%1.3M2.53
    30 May 20253.7M-7.6%1.0M3.58
    15 May 20254.0M+32.3%1.3M3.11
    30 April 20253.0M-13.7%1.5M1.96
    15 April 20253.5M-6.7%1.7M2.00
    31 March 20253.7M+15.5%1.5M2.54
    14 March 20253.2M-16.8%1.9M1.75
    28 February 20253.9M+7.6%1.2M3.12
    14 February 20253.6M+17.2%1.6M2.20
    31 January 20253.1M-17.5%1.7M1.86
    15 January 20253.7M-60.1%2.3M1.62
    31 December 20249.4M+27.7%2.5M3.78
    13 December 20247.3M+157.1%3.4M2.16
    29 November 20242.9M+3.5%1.1M2.63
    15 November 20242.8M-3.6%833K3.31
    31 October 20242.9M+1.2%841K3.40
    15 October 20242.8M+19.1%1.1M2.64
    30 September 20242.4M-16.0%1.1M2.23
    13 September 20242.8M+5.3%627K4.51
    30 August 20242.7M+15.4%621K4.32
    15 August 20242.3M-12.1%775K3.00
    31 July 20242.6M-16.4%830K3.19
    15 July 20243.2M-5.4%648K4.89
    28 June 20243.3M+19.4%1.1M2.94
    14 June 20242.8M+4.6%919K3.05
    31 May 20242.7M+25.8%721K3.72
    15 May 20242.1M+18.8%725K2.94
    30 April 20241.8M-15.0%841K2.13
    15 April 20242.1M+5.9%797K2.65
    28 March 20242.0M-10.8%965K2.07
    15 March 20242.2M-6.3%754K2.96
    29 February 20242.4M+23.7%757K3.15
    15 February 20241.9M+6.8%947K2.04
    31 January 20241.8M+6.0%998K1.81
    12 January 20241.7M-11.8%899K1.90
    29 December 20231.9M-5.9%949K2.04
    15 December 20232.1M-17.1%1.2M1.69
    30 November 20232.5M+9.0%760K3.26
    15 November 20232.3M+17.3%932K2.44
    31 October 20231.9M-7.8%843K2.30
    13 October 20232.1M+4.0%647K3.25
    29 September 20232.0M+12.9%835K2.42
    15 September 20231.8M-26.6%758K2.36
    31 August 20232.4M+53.1%633K3.85
    15 August 20231.6M+12.3%640K2.49
    31 July 20231.4M-15.3%774K1.83
    14 July 20231.7M+1.5%659K2.54
    30 June 20231.6M+0.3%1.1M1.44
    15 June 20231.6M-11.2%720K2.28
    31 May 20231.9M-15.3%977K1.89
    15 May 20232.2M+1.5%827K2.64
    28 April 20232.2M+2.2%1.0M2.07
    14 April 20232.1M+22.2%837K2.52
    31 March 20231.7M-12.9%1.1M1.53
    15 March 20232.0M+10.0%1.2M1.67
    28 February 20231.8M+36.9%818K2.20
    15 February 20231.3M-17.2%782K1.68
    31 January 20231.6M+14.3%786K2.02
    13 January 20231.4M+18.8%608K2.28
    30 December 20221.2M-9.5%601K1.94
    15 December 20221.3M-8.8%773K1.67
    30 November 20221.4M-32.2%925K1.53
    15 November 20222.1M+3.2%921K2.27
    31 October 20222.0M-6.6%1.0M1.97
    14 October 20222.2M-11.0%945K2.29
    30 September 20222.4M-4.6%1.0M2.32
    15 September 20222.6M-11.1%1.1M2.26
    31 August 20222.9M+26.4%836K3.43
    15 August 20222.3M+1.9%832K2.73
    29 July 20222.2M+18.8%749K2.97
    15 July 20221.9M+3.1%634K2.96
    30 June 20221.8M+24.8%1.1M1.72
    15 June 20221.5M-11.0%771K1.89
    31 May 20221.6M-6.7%874K1.87
    13 May 20221.8M+12.9%1.0M1.69
    29 April 20221.6M-17.4%1.1M1.43
    14 April 20221.9M+17.8%941K2.00
    31 March 20221.6M-5.5%871K1.83
    15 March 20221.7M+11.2%1.1M1.60
    28 February 20221.5M-24.0%882K1.72
    15 February 20222.0M+1.1%974K2.05
    31 January 20222.0M+4.9%1.4M1.40
    14 January 20221.9M+8.3%888K2.13
    31 December 20211.7M+11.3%784K2.22
    15 December 20211.6M-11.8%969K1.62
    30 November 20211.8M+1.0%1.0M1.76
    15 November 20211.8M-10.9%794K2.22
    29 October 20212.0M-7.4%833K2.37
    15 October 20212.1M-17.8%963K2.21
    30 September 20212.6M+38.3%1.1M2.41
    15 September 20211.9M+1.4%1.2M1.57
    31 August 20211.8M-32.7%1.0M1.85
    13 August 20212.7M+13.9%1.0M2.74
    30 July 20212.4M-5.8%1.1M2.15
    15 July 20212.6M-15.8%814K3.15
    30 June 20213.0M+27.2%1.3M2.28
    15 June 20212.4M+21.1%1.1M2.13
    28 May 20212.0M-20.4%1.2M1.61
    14 May 20212.5M+14.9%1.3M1.94
    30 April 20212.2M+3.1%594K3.64
    15 April 20212.1M-19.6%661K3.17
    31 March 20212.6M+20.9%1,000K2.61
    15 March 20212.2M+13.0%812K2.66
    26 February 20211.9M+1.7%777K2.46
    12 February 20211.9M-12.6%707K2.65
    29 January 20212.1M+26.5%817K2.63
    15 January 20211.7M+14.5%712K2.39
    31 December 20201.5M+6.5%646K2.30
    15 December 20201.4M+3.4%740K1.88
    30 November 20201.3M-4.2%856K1.57
    13 November 20201.4M-14.2%901K1.56
    30 October 20201.6M+10.7%776K2.11
    15 October 20201.5M-1.6%584K2.53
    30 September 20201.5M+23.9%953K1.58
    15 September 20201.2M-14.4%710K1.71
    31 August 20201.4M+14.9%784K1.81
    14 August 20201.2M-1.3%672K1.84
    31 July 20201.3M-19.4%758K1.65
    15 July 20201.6M-15.8%652K2.38
    30 June 20201.8M-9.3%1.2M1.57
    15 June 20202.0M-8.5%1.2M1.76
    29 May 20202.2M-20.7%931K2.39
    15 May 20202.8M+10.2%1.3M2.17
    30 April 20202.5M+1.7%1.2M2.14
    15 April 20202.5M-4.5%1.4M1.77
    31 March 20202.6M-11.3%1.6M1.66
    13 March 20202.9M+4.1%1.3M2.35
    28 February 20202.8M-4.4%1.1M2.51
    14 February 20203.0M+1.2%634K4.67
    31 January 20202.9M+2.0%596K4.90
    15 January 20202.9M+1.8%639K4.49
    31 December 20192.8M+4.5%662K4.26
    13 December 20192.7M-6.5%643K4.19
    29 November 20192.9M-7.1%708K4.08
    15 November 20193.1M+3.9%716K4.34
    31 October 20193.0M+14.5%959K3.12
    15 October 20192.6M-3.9%761K3.43
    30 September 20192.7M+4.1%838K3.24
    13 September 20192.6M-3.4%826K3.16
    30 August 20192.7M+3.4%941K2.88
    15 August 20192.6M-3.5%847K3.09
    31 July 20192.7M+35.4%1.3M2.06
    15 July 20192.0M+11.0%887K2.26
    28 June 20191.8M+5.1%1.1M1.68
    14 June 20191.7M+5.6%784K2.19
    31 May 20191.6M-13.1%815K1.99
    15 May 20191.9M+4.8%770K2.43
    30 April 20191.8M+15.6%1.0M1.78
    15 April 20191.5M-3.6%975K1.58
    29 March 20191.6M-37.3%1.2M1.35
    15 March 20192.6M+18.1%1.4M1.86
    28 February 20192.2M-4.8%929K2.33
    15 February 20192.3M+36.7%1.3M1.79
    31 January 20191.7M-21.9%1.1M1.45
    15 January 20192.1M-13.9%1.0M2.09
    31 December 20182.5M+8.7%1.2M2.02
    14 December 20182.3M+0.7%1.3M1.78
    30 November 20182.3M-1.8%1.3M1.71
    15 November 20182.3M+13.8%1.1M2.12
    31 October 20182.0M+10.0%1.1M1.80
    15 October 20181.8M+3.2%708K2.59
    28 September 20181.8M+4.1%795K2.24
    14 September 20181.7M+14.3%670K2.55
    31 August 20181.5M-9.8%558K2.68
    15 August 20181.7M-18.4%686K2.42
    31 July 20182.0M+5.3%996K2.04
    13 July 20181.9M-2.8%734K2.63
    29 June 20182.0M+4.7%1.3M1.58
    15 June 20181.9M+5.5%820K2.31
    31 May 20181.8M+4.5%903K1.99
    15 May 20181.7M-3.6%1.0M1.68
    30 April 20181.8M+2.6%813K2.19
    13 April 20181.7M-6.4%947K1.83
    29 March 20181.9M-18.2%1.3M1.47
    15 March 20182.3M+11.4%1.0M2.26
    28 February 20182.0M-17.3%1.1M1.79
    15 February 20182.5M-14.5%1.4M1.73
    31 January 20182.9M-15.4%1.3M2.25
    12 January 20183.4M+5.8%846K4.03
    29 December 20173.2M892K3.61
    Shares in millions (M) or thousands (K); hold the pointer on a figure for the exact count. FINRA publishes consolidated short interest twice a month, about ten days after each settlement.