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W. R. Berkley Corp. short interest

12.1M shares of W. R. Berkley were sold short at the 15 October 2026 settlement, the fewest since 15 Oct 2025. Short sellers would need 5.6 days of normal trading to buy them back.

Shares sold short12.1Mat 15 Oct 2026
Change on the settlement before-7.5%+24% over a year
Days to cover5.56at 2.2M shares a day
Of shares in issue3.26%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 the fewest since 15 Oct 2025, and the share price moved -2% 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. Counts before a split are restated to today's shares, the way the price is.

How it compares

every company on the site

    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 202612.1M-7.5%2.2M5.56
    30 September 202613.1M-15.2%4.6M2.83
    15 September 202615.5M+1.8%2.7M5.68
    31 August 202615.2M+2.2%1.5M9.91
    14 August 202614.9M-4.8%1.7M8.72
    31 July 202615.6M-11.9%2.1M7.27
    15 July 202617.7M-0.7%1.8M9.64
    30 June 202617.8M-5.0%2.3M7.87
    15 June 202618.8M+1.5%2.1M8.84
    29 May 202618.5M-0.5%2.6M6.98
    15 May 202618.6M-2.3%1.7M11.11
    30 April 202619.0M+3.1%2.5M7.72
    15 April 202618.4M-8.7%1.7M11.15
    31 March 202620.2M+5.5%2.7M7.40
    13 March 202619.1M-5.2%1.8M10.85
    27 February 202620.2M+0.4%2.2M9.02
    13 February 202620.1M+5.1%2.1M9.67
    30 January 202619.1M+4.0%3.0M6.46
    15 January 202618.4M+5.1%2.3M8.05
    31 December 202517.5M-29.6%2.7M6.53
    15 December 202524.9M-3.9%5.0M4.95
    28 November 202525.9M+7.0%1.8M14.21
    14 November 202524.2M+14.8%2.7M9.01
    31 October 202521.0M+115.3%4.2M5.02
    15 October 20259.8M+10.0%1.9M5.03
    30 September 20258.9M-0.7%2.2M4.06
    15 September 20258.9M+2.1%1.5M6.01
    29 August 20258.8M+10.0%1.4M6.10
    15 August 20258.0M+22.2%2.0M4.01
    31 July 20256.5M+42.8%2.5M2.59
    15 July 20254.6M-0.7%2.2M2.03
    30 June 20254.6M+3.2%1.9M2.40
    13 June 20254.5M+14.8%1.3M3.47
    30 May 20253.9M-5.6%1.5M2.62
    15 May 20254.1M+8.0%1.4M2.86
    30 April 20253.8M-11.1%2.0M1.94
    15 April 20254.3M-28.4%2.5M1.69
    31 March 20256.0M-26.1%2.5M2.37
    14 March 20258.1M-6.4%1.4M5.61
    28 February 20258.6M+20.5%1.6M5.26
    14 February 20257.2M+5.9%1.5M4.84
    31 January 20256.8M+39.8%2.8M2.44
    15 January 20254.8M+1.0%1.6M2.96
    31 December 20244.8M+2.3%1.5M3.21
    13 December 20244.7M+18.8%1.2M3.78
    29 November 20243.9M-12.7%1.2M3.31
    15 November 20244.5M+0.7%1.4M3.30
    31 October 20244.5M-23.9%2.6M1.72
    15 October 20245.9M-3.6%1.9M3.17
    30 September 20246.1M-12.8%2.2M2.82
    13 September 20247.0M-12.7%1.5M4.80
    30 August 20248.0M+0.1%1.0M7.90
    15 August 20248.0M-7.3%1.7M4.75
    31 July 20248.7M-44.2%2.3M3.85
    15 July 202415.5M+44.9%2.1M7.27
    28 June 202410.7M+1.1%1.9M5.78
    14 June 202410.6M+19.8%1.4M7.47
    31 May 20248.8M+11.3%1.5M6.01
    15 May 20248.0M+11.9%1.5M5.29
    30 April 20247.1M+5.3%2.7M2.59
    15 April 20246.8M+10.8%1.7M3.89
    28 March 20246.1M+10.3%1.7M3.68
    15 March 20245.5M+16.9%1.7M3.21
    29 February 20244.7M-22.0%1.8M2.62
    15 February 20246.1M+12.2%1.5M3.99
    31 January 20245.4M-0.1%2.3M2.38
    12 January 20245.4M+6.7%1.7M3.26
    29 December 20235.1M-16.0%1.6M3.22
    15 December 20236.0M+19.3%2.3M2.60
    30 November 20235.1M-4.5%2.2M2.33
    15 November 20235.3M-3.9%1.5M3.52
    31 October 20235.5M+7.2%2.4M2.29
    13 October 20235.1M+26.1%1.6M3.24
    29 September 20234.1M+3.0%1.6M2.56
    15 September 20234.0M-2.1%1.5M2.64
    31 August 20234.0M+1.0%1.3M3.14
    15 August 20234.0M-5.1%1.4M2.86
    31 July 20234.2M+0.6%2.4M1.74
    14 July 20234.2M-24.8%1.7M2.42
    30 June 20235.6M+13.3%2.1M2.68
    15 June 20234.9M-7.2%1.9M2.53
    31 May 20235.3M-10.6%3.0M1.78
    15 May 20235.9M+13.0%2.3M2.55
    28 April 20235.2M+40.0%4.2M1.24
    14 April 20233.7M-2.1%1.9M1.95
    31 March 20233.8M-28.8%2.8M1.38
    15 March 20235.4M+25.9%2.6M2.06
    28 February 20234.3M+1.8%2.0M2.15
    15 February 20234.2M-8.5%2.2M1.89
    31 January 20234.6M+8.6%2.0M2.27
    13 January 20234.2M+1.6%1.7M2.44
    30 December 20224.1M+23.0%1.8M2.33
    15 December 20223.4M+8.7%1.6M2.06
    30 November 20223.1M-10.2%1.7M1.79
    15 November 20223.5M+3.6%2.2M1.53
    31 October 20223.3M-6.0%2.6M1.29
    14 October 20223.5M-13.7%1.7M2.10
    30 September 20224.1M+22.8%1.8M2.26
    15 September 20223.3M-3.5%1.6M2.13
    31 August 20223.5M-18.8%1.4M2.48
    15 August 20224.3M-1.7%1.7M2.47
    29 July 20224.3M+10.8%2.3M1.92
    15 July 20223.9M+22.5%1.9M2.05
    30 June 20223.2M+3.4%2.5M1.28
    15 June 20223.1M-7.5%1.6M1.97
    31 May 20223.3M-7.4%2.6M1.31
    13 May 20223.6M+24.8%2.6M1.41
    29 April 20222.9M-0.8%2.9M1.00
    14 April 20222.9M+42.4%2.5M1.17
    31 March 20222.1M-28.2%2.2M1.00
    15 March 20222.9M+1.6%1.8M1.57
    28 February 20222.8M-19.2%1.6M1.76
    15 February 20223.5M+14.9%2.5M1.38
    31 January 20223.0M+4.9%2.5M1.22
    14 January 20222.9M+8.4%1.3M2.21
    31 December 20212.7M+0.0%1.4M1.96
    15 December 20212.7M+23.3%1.3M1.98
    30 November 20212.2M-9.5%1.7M1.26
    15 November 20212.4M+1.0%1.2M2.06
    29 October 20212.4M-5.4%1.4M1.63
    15 October 20212.5M-18.3%1.2M2.02
    30 September 20213.1M+15.9%1.7M1.81
    15 September 20212.6M-34.6%1.3M1.99
    31 August 20214.0M+1.6%1.2M3.47
    13 August 20214.0M+4.1%1.4M2.75
    30 July 20213.8M+11.7%1.5M2.57
    15 July 20213.4M+9.9%1.2M2.84
    30 June 20213.1M+1.3%1.5M2.06
    15 June 20213.1M-20.1%1.3M2.45
    28 May 20213.8M+0.4%1.2M3.10
    14 May 20213.8M+4.6%1.2M3.12
    30 April 20213.7M+0.2%1.4M2.65
    15 April 20213.6M-21.2%1.3M2.75
    31 March 20214.6M+63.0%1.8M2.60
    15 March 20212.8M-8.5%1.6M1.75
    26 February 20213.1M-11.6%1.5M2.07
    12 February 20213.5M-5.4%1.4M2.43
    29 January 20213.7M-30.2%1.9M2.00
    15 January 20215.3M+113.7%2.3M2.30
    31 December 20202.5M+5.6%1.2M2.14
    15 December 20202.4M-46.3%1.7M1.36
    30 November 20204.4M-0.2%2.2M1.98
    13 November 20204.4M+31.7%1.8M2.49
    30 October 20203.3M+0.7%1.6M2.06
    15 October 20203.3M-2.9%934K3.55
    30 September 20203.4M-0.8%1.6M2.18
    15 September 20203.4M-10.2%1.3M2.61
    31 August 20203.8M+5.9%1.2M3.23
    14 August 20203.6M-7.7%1.2M3.09
    31 July 20203.9M+18.1%1.7M2.31
    15 July 20203.3M+17.9%1.4M2.42
    30 June 20202.8M-14.6%1.8M1.59
    15 June 20203.3M-18.1%1.7M1.89
    29 May 20204.0M-11.3%1.9M2.09
    15 May 20204.5M+24.0%1.8M2.47
    30 April 20203.7M+2.8%2.2M1.70
    15 April 20203.6M-12.8%2.1M1.67
    31 March 20204.1M-34.4%3.1M1.34
    13 March 20206.2M-12.2%2.9M2.17
    28 February 20207.1M-0.7%3.0M2.39
    14 February 20207.1M+10.8%1.5M4.77
    31 January 20206.4M+6.9%1.6M4.08
    15 January 20206.0M-9.2%1.5M4.00
    31 December 20196.6M+15.6%1.5M4.53
    13 December 20195.7M-25.5%10.2M1.00
    29 November 20197.7M+12.1%2.0M3.79
    15 November 20196.9M-3.7%1.2M5.58
    31 October 20197.1M-17.1%1.7M4.18
    15 October 20198.6M+5.7%942K9.14
    30 September 20198.2M+0.0%1.4M5.65
    13 September 20198.1M-7.6%1.5M5.39
    30 August 20198.8M-4.0%1.3M6.89
    15 August 20199.2M-7.1%1.3M7.02
    31 July 20199.9M-14.6%1.5M6.68
    15 July 201911.6M-1.4%965K11.99
    28 June 201911.7M+11.3%1.7M7.07
    14 June 201910.5M-5.1%1.3M8.03
    31 May 201911.1M-3.7%1.4M7.99
    15 May 201911.5M-10.0%1.1M10.28
    30 April 201912.8M-1.8%1.0M12.28
    15 April 201913.1M+4.9%868K15.04
    29 March 201912.4M-5.7%1.0M11.87
    15 March 201913.2M-2.9%1.3M10.05
    28 February 201913.6M-7.9%1.3M10.17
    15 February 201914.7M+8.2%1.2M12.40
    31 January 201913.6M+0.1%1.1M11.99
    15 January 201913.6M-0.2%1.3M10.25
    31 December 201813.6M+8.8%1.6M8.70
    14 December 201812.5M-3.2%1.4M8.95
    30 November 201813.0M+10.0%1.9M6.82
    15 November 201811.8M-4.8%1.1M10.27
    31 October 201812.4M+1.5%1.4M8.79
    15 October 201812.2M+3.0%1.4M8.59
    28 September 201811.8M+2.3%2.1M5.53
    14 September 201811.6M-5.2%872K13.27
    31 August 201812.2M+2.2%765K15.96
    15 August 201811.9M-2.4%768K15.55
    31 July 201812.2M+0.1%1.2M10.52
    13 July 201812.2M-5.9%956K12.80
    29 June 201813.0M+2.2%1.6M8.09
    15 June 201812.7M+5.5%1.1M11.34
    31 May 201812.1M-0.3%1.2M10.44
    15 May 201812.1M-3.3%1.1M11.32
    30 April 201812.5M+0.6%1.4M9.02
    13 April 201812.4M+3.9%1.2M9.96
    29 March 201812.0M+5.9%1.8M6.47
    15 March 201811.3M+7.9%1.2M9.54
    28 February 201810.5M-2.6%1.2M9.04
    15 February 201810.7M-2.3%1.7M6.47
    31 January 201811.0M-1.2%1.3M8.56
    12 January 201811.1M-8.6%1.4M7.94
    29 December 201712.2M1.1M11.42
    Shares in millions (M) or thousands (K); hold the pointer on a figure for the exact count. Counts before a split are restated to today's shares. FINRA publishes consolidated short interest twice a month, about ten days after each settlement.