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Stock research / United States / PNR / Short interest

Pentair plc short interest

7.4M shares of Pentair were sold short at the 15 October 2026 settlement, near the top of its range over the last year (1.9M to 8.5M). Short sellers would need 2.6 days of normal trading to buy them back.

Shares sold short7.4Mat 15 Oct 2026
Change on the settlement before-1.2%+288% over a year
Days to cover2.61at 2.8M shares a day
Of shares in issue4.62%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 top of its range over the last year (1.9M to 8.5M), and the share price moved -38% 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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    Every settlement since 29 Dec 2017 as a table
    SettlementShares shortChangeAverage daily volumeDays to cover
    15 October 20267.4M-1.2%2.8M2.61
    30 September 20267.5M+18.8%2.6M2.87
    15 September 20266.3M-26.2%3.0M2.12
    31 August 20268.5M+13.3%4.6M1.86
    14 August 20267.5M+12.3%2.6M2.89
    31 July 20266.7M+6.7%3.9M1.72
    15 July 20266.3M-8.3%3.3M1.93
    30 June 20266.8M-3.4%2.4M2.86
    15 June 20267.1M+3.7%2.1M3.35
    29 May 20266.8M-3.5%2.6M2.66
    15 May 20267.1M+11.0%1.9M3.79
    30 April 20266.4M+23.8%2.4M2.61
    15 April 20265.1M+6.3%1.3M4.00
    31 March 20264.8M-2.5%1.5M3.20
    13 March 20265.0M+2.5%1.6M3.07
    27 February 20264.9M+8.7%1.5M3.17
    13 February 20264.5M+12.0%2.8M1.60
    30 January 20264.0M+11.5%1.6M2.54
    15 January 20263.6M+7.9%1.9M1.83
    31 December 20253.3M-5.4%944K3.51
    15 December 20253.5M-4.9%1.2M2.97
    28 November 20253.7M+11.7%1.4M2.65
    14 November 20253.3M-14.1%1.1M3.08
    31 October 20253.8M+101.4%1.5M2.58
    15 October 20251.9M-21.1%1.0M1.89
    30 September 20252.4M-27.7%1.1M2.14
    15 September 20253.3M+10.1%1.0M3.29
    29 August 20253.0M+6.7%1.1M2.64
    15 August 20252.8M+18.7%1.5M1.93
    31 July 20252.4M-10.9%2.4M1.00
    15 July 20252.7M-8.0%1.5M1.81
    30 June 20252.9M-0.1%1.4M2.06
    13 June 20252.9M+0.9%936K3.11
    30 May 20252.9M-1.0%1.3M2.24
    15 May 20252.9M-18.8%1.1M2.70
    30 April 20253.6M+1.7%2.0M1.81
    15 April 20253.5M+10.1%2.2M1.63
    31 March 20253.2M+39.1%1.6M1.98
    14 March 20252.3M-0.1%2.0M1.18
    28 February 20252.3M-7.3%1.5M1.57
    14 February 20252.5M-9.3%1.5M1.61
    31 January 20252.7M-2.4%1.4M2.03
    15 January 20252.8M+7.9%1.1M2.57
    31 December 20242.6M+15.7%1.1M2.35
    13 December 20242.3M+11.9%1.1M2.09
    29 November 20242.0M-16.8%1.2M1.74
    15 November 20242.4M-23.2%1.4M1.73
    31 October 20243.2M+11.3%1.6M1.99
    15 October 20242.8M-15.9%1.6M1.76
    30 September 20243.4M+7.9%1.6M2.14
    13 September 20243.1M+10.1%1.2M2.64
    30 August 20242.8M-10.9%1.0M2.78
    15 August 20243.2M+0.1%1.2M2.61
    31 July 20243.2M+1.6%2.3M1.38
    15 July 20243.1M-39.4%1.7M1.80
    28 June 20245.2M+9.1%2.3M2.29
    14 June 20244.7M+17.6%1.3M3.73
    31 May 20244.0M-8.9%1.2M3.47
    15 May 20244.4M+28.9%1.2M3.73
    30 April 20243.4M+2.9%1.7M1.99
    15 April 20243.3M-27.0%1.5M2.24
    28 March 20244.6M+4.6%1.6M2.80
    15 March 20244.4M-1.6%1.7M2.50
    29 February 20244.4M+14.6%1.7M2.64
    15 February 20243.9M+6.9%1.4M2.83
    31 January 20243.6M+32.8%1.9M1.86
    12 January 20242.7M-22.4%1.5M1.80
    29 December 20233.5M+17.7%1.1M3.25
    15 December 20233.0M+30.7%1.6M1.87
    30 November 20232.3M-13.1%1.3M1.77
    15 November 20232.6M-8.2%1.3M2.00
    31 October 20232.9M+4.5%1.9M1.54
    13 October 20232.7M-9.5%1.1M2.41
    29 September 20233.0M-6.4%821K3.69
    15 September 20233.2M-7.8%927K3.49
    31 August 20233.5M-7.3%843K4.16
    15 August 20233.8M+1.2%1.1M3.39
    31 July 20233.7M-5.5%1.7M2.21
    14 July 20234.0M+9.5%1.4M2.84
    30 June 20233.6M-9.2%1.1M3.15
    15 June 20234.0M+8.6%1.0M3.84
    31 May 20233.7M-14.9%1.0M3.51
    15 May 20234.3M-21.8%1.1M3.81
    28 April 20235.5M-19.4%1.9M2.96
    14 April 20236.8M+4.8%1.1M6.08
    31 March 20236.5M-12.7%1.6M4.05
    15 March 20237.5M-5.3%1.5M5.14
    28 February 20237.9M+7.0%1.5M5.35
    15 February 20237.4M-4.3%2.1M3.58
    31 January 20237.7M+6.6%1.9M3.97
    13 January 20237.2M+5.2%1.6M4.53
    30 December 20226.9M+2.1%1.2M5.68
    15 December 20226.7M+1.8%1.2M5.66
    30 November 20226.6M-2.3%1.1M6.16
    15 November 20226.8M-5.3%1.7M4.07
    31 October 20227.1M+11.6%2.6M2.70
    14 October 20226.4M-14.1%1.3M4.75
    30 September 20227.5M+2.0%1.5M5.12
    15 September 20227.3M+4.0%1.5M4.81
    31 August 20227.0M+6.3%1.2M6.02
    15 August 20226.6M+49.8%1.2M5.35
    29 July 20224.4M-6.1%2.1M2.15
    15 July 20224.7M-4.0%1.1M4.43
    30 June 20224.9M-1.1%1.3M3.90
    15 June 20225.0M-5.0%1.0M4.81
    31 May 20225.2M+2.1%1.5M3.57
    13 May 20225.1M+1.7%1.5M3.45
    29 April 20225.0M-3.0%2.1M2.40
    14 April 20225.2M-5.9%1.5M3.36
    31 March 20225.5M+10.5%1.6M3.45
    15 March 20225.0M+8.8%1.3M3.69
    28 February 20224.6M+3.2%1.4M3.34
    15 February 20224.4M-20.1%1.3M3.41
    31 January 20225.5M+10.9%1.7M3.30
    14 January 20225.0M-15.6%1.3M3.96
    31 December 20215.9M+0.2%1.2M4.87
    15 December 20215.9M+5.2%1.3M4.72
    30 November 20215.6M-9.3%988K5.69
    15 November 20216.2M+2.2%984K6.30
    29 October 20216.1M-8.6%1.3M4.57
    15 October 20216.6M+25.7%1.3M5.03
    30 September 20215.3M+5.7%1.1M4.83
    15 September 20215.0M+18.3%1.0M4.82
    31 August 20214.2M-5.9%1.3M3.22
    13 August 20214.5M+10.8%1.1M4.25
    30 July 20214.0M+1.3%1.2M3.35
    15 July 20214.0M+9.2%838K4.77
    30 June 20213.7M+14.6%1.0M3.57
    15 June 20213.2M-2.4%1.0M3.06
    28 May 20213.3M+0.4%795K4.12
    14 May 20213.3M+2.6%806K4.04
    30 April 20213.2M+5.5%1.1M2.81
    15 April 20213.0M+68.3%832K3.62
    31 March 20211.8M-47.0%805K2.22
    15 March 20213.4M+3.8%816K4.14
    26 February 20213.3M+0.1%907K3.58
    12 February 20213.2M-2.6%936K3.47
    29 January 20213.3M+3.8%1.2M2.79
    15 January 20213.2M+20.9%1.1M2.84
    31 December 20202.7M-2.0%604K4.41
    15 December 20202.7M+33.6%955K2.84
    30 November 20202.0M+34.3%850K2.39
    13 November 20201.5M-23.7%1.3M1.14
    30 October 20202.0M-7.7%1.1M1.74
    15 October 20202.1M+10.9%1.0M2.06
    30 September 20201.9M+17.5%1.3M1.54
    15 September 20201.6M-13.7%773K2.13
    31 August 20201.9M-5.6%703K2.71
    14 August 20202.0M-24.0%840K2.41
    31 July 20202.7M+21.8%1.2M2.19
    15 July 20202.2M+23.5%1.2M1.79
    30 June 20201.8M+16.9%1.3M1.34
    15 June 20201.5M-25.3%1.1M1.40
    29 May 20202.0M-10.7%963K2.11
    15 May 20202.3M+20.4%925K2.45
    30 April 20201.9M-37.2%1.2M1.59
    15 April 20203.0M-0.2%1.1M2.68
    31 March 20203.0M-4.2%1.6M1.87
    13 March 20203.1M+5.5%1.7M1.89
    28 February 20203.0M-10.5%1.3M2.26
    14 February 20203.3M-17.7%917K3.63
    31 January 20204.0M+6.3%1.2M3.38
    15 January 20203.8M-0.1%755K5.03
    31 December 20193.8M+4.3%728K5.22
    13 December 20193.6M+2.8%860K4.23
    29 November 20193.5M-0.3%785K4.51
    15 November 20193.6M+5.5%927K3.83
    31 October 20193.4M+8.6%1.5M2.29
    15 October 20193.1M-7.1%860K3.61
    30 September 20193.3M-3.8%1.2M2.82
    13 September 20193.5M-0.5%1.1M3.14
    30 August 20193.5M-24.1%956K3.65
    15 August 20194.6M-8.7%1.5M3.02
    31 July 20195.0M+14.4%1.7M2.95
    15 July 20194.4M-7.0%1.2M3.68
    28 June 20194.7M+0.5%1.4M3.28
    14 June 20194.7M-2.9%1.4M3.30
    31 May 20194.8M-19.4%1.9M2.59
    15 May 20196.0M+27.1%1.5M3.91
    30 April 20194.7M+31.1%2.7M1.75
    15 April 20193.6M-5.5%2.5M1.42
    29 March 20193.8M-7.9%1.3M2.90
    15 March 20194.1M+43.9%1.3M3.24
    28 February 20192.9M+1.8%1.3M2.17
    15 February 20192.8M-7.0%1.3M2.16
    31 January 20193.0M-26.6%2.0M1.50
    15 January 20194.1M-7.5%1.5M2.75
    31 December 20184.5M+6.0%1.5M3.07
    14 December 20184.2M+16.6%2.3M1.85
    30 November 20183.6M+7.7%1.2M3.14
    15 November 20183.4M+3.1%1.2M2.77
    31 October 20183.3M-15.4%2.3M1.41
    15 October 20183.9M-23.7%1.3M2.88
    28 September 20185.1M-15.7%1.5M3.40
    14 September 20186.0M-13.0%1.5M3.92
    31 August 20186.9M+0.2%1.1M6.02
    15 August 20186.9M+28.3%1.6M4.26
    31 July 20185.4M+30.9%2.3M2.38
    13 July 20184.1M-6.0%1.2M3.49
    29 June 20184.4M+37.6%1.5M2.87
    15 June 20183.2M-11.7%1.6M1.92
    31 May 20183.6M+49.3%1.4M2.60
    15 May 20182.4M+14.0%2.9M1.00
    30 April 20182.1M+8.9%1.3M1.62
    13 April 20181.9M-14.7%981K1.97
    29 March 20182.3M-28.8%1.2M1.97
    15 March 20183.2M+15.8%1.0M3.15
    28 February 20182.8M+8.5%832K3.31
    15 February 20182.5M-9.6%1.5M1.70
    31 January 20182.8M+31.4%1.2M2.41
    12 January 20182.1M-13.4%914K2.34
    29 December 20172.5M658K3.75
    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.