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Stock research / United States / MOS / Short interest

Mosaic Co. short interest

33.8M shares of Mosaic were sold short at the 15 October 2026 settlement, the most at any settlement since 29 Dec 2017, when our record starts. Short sellers would need 3.3 days of normal trading to buy them back.

Shares sold short33.8Mat 15 Oct 2026
Change on the settlement before+12.6%+172% over a year
Days to cover3.31at 10.2M shares a day
Of shares in issue10.63%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 most at any settlement since 29 Dec 2017, when our record starts, and the share price moved -25% 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

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 202633.8M+12.6%10.2M3.31
    30 September 202630.0M-2.9%7.9M3.79
    15 September 202630.9M+6.9%8.7M3.54
    31 August 202628.9M-0.4%8.2M3.51
    14 August 202629.0M-8.9%7.7M3.77
    31 July 202631.8M+7.4%7.1M4.50
    15 July 202629.6M-0.1%8.0M3.68
    30 June 202629.7M+24.5%11.3M2.62
    15 June 202623.8M+14.3%9.4M2.53
    29 May 202620.9M+6.8%8.6M2.43
    15 May 202619.5M+12.3%9.1M2.15
    30 April 202617.4M-5.2%8.6M2.03
    15 April 202618.3M-12.0%8.4M2.18
    31 March 202620.8M-1.9%12.8M1.62
    13 March 202621.2M+10.6%12.8M1.66
    27 February 202619.2M+3.7%6.9M2.80
    13 February 202618.5M+19.6%6.0M3.11
    30 January 202615.5M-0.3%7.4M2.10
    15 January 202615.5M-7.1%7.7M2.02
    31 December 202516.7M-7.1%6.3M2.64
    15 December 202518.0M+22.5%8.3M2.17
    28 November 202514.7M+2.4%7.1M2.08
    14 November 202514.3M-0.7%8.3M1.73
    31 October 202514.4M+16.4%5.3M2.71
    15 October 202512.4M-3.2%5.1M2.45
    30 September 202512.8M-5.0%4.3M2.98
    15 September 202513.5M+18.3%4.1M3.26
    29 August 202511.4M+13.4%4.3M2.64
    15 August 202510.1M-5.2%6.3M1.60
    31 July 202510.6M-3.2%4.2M2.50
    15 July 202511.0M-12.8%4.4M2.50
    30 June 202512.6M+4.2%5.6M2.25
    13 June 202512.1M+18.3%6.7M1.79
    30 May 202510.2M-15.2%4.2M2.41
    15 May 202512.0M+23.5%6.5M1.85
    30 April 20259.7M+16.2%5.0M1.94
    15 April 20258.4M+1.3%6.4M1.31
    31 March 20258.3M+3.7%5.8M1.42
    14 March 20258.0M-12.2%6.3M1.26
    28 February 20259.1M+4.9%8.2M1.10
    14 February 20258.7M-9.9%5.0M1.72
    31 January 20259.6M+0.0%4.4M2.21
    15 January 20259.6M+7.2%5.1M1.89
    31 December 20249.0M+5.3%4.1M2.19
    13 December 20248.5M+22.7%4.4M1.91
    29 November 20246.9M+1.8%4.5M1.52
    15 November 20246.8M-16.9%4.6M1.49
    31 October 20248.2M+10.3%3.2M2.53
    15 October 20247.4M+20.6%4.1M1.80
    30 September 20246.2M+4.4%4.9M1.26
    13 September 20245.9M+7.5%4.4M1.35
    30 August 20245.5M+4.7%2.8M1.99
    15 August 20245.2M-15.0%3.7M1.42
    31 July 20246.2M-9.2%2.9M2.13
    15 July 20246.8M-2.7%3.7M1.83
    28 June 20247.0M-16.7%5.9M1.17
    14 June 20248.4M+39.1%3.8M2.23
    31 May 20246.0M+24.7%4.1M1.48
    15 May 20244.8M-33.4%5.2M1.00
    30 April 20247.2M+4.4%3.9M1.88
    15 April 20246.9M+36.0%4.1M1.71
    28 March 20245.1M+12.0%4.4M1.16
    15 March 20244.6M+43.5%5.0M1.00
    29 February 20243.2M-28.1%6.6M1.00
    15 February 20244.4M+18.2%5.5M1.00
    31 January 20243.7M+25.6%4.8M1.00
    12 January 20243.0M-6.0%5.0M1.00
    29 December 20233.2M-12.4%3.3M1.00
    15 December 20233.6M-5.5%4.0M1.00
    30 November 20233.8M-4.3%3.4M1.11
    15 November 20234.0M+12.7%4.6M1.00
    31 October 20233.5M-8.0%2.9M1.20
    13 October 20233.8M+5.4%3.6M1.06
    29 September 20233.6M-24.9%4.3M1.00
    15 September 20234.9M-1.0%4.1M1.17
    31 August 20234.9M-5.6%2.6M1.88
    15 August 20235.2M-13.3%3.7M1.42
    31 July 20236.0M-10.7%3.8M1.58
    14 July 20236.7M-1.9%3.9M1.72
    30 June 20236.8M-9.2%4.6M1.50
    15 June 20237.5M-21.1%4.5M1.68
    31 May 20239.6M+3.6%4.4M2.16
    15 May 20239.2M+7.8%4.7M1.98
    28 April 20238.6M-17.1%4.1M2.08
    14 April 202310.3M-1.2%3.9M2.63
    31 March 202310.5M+2.6%4.1M2.57
    15 March 202310.2M+35.4%5.3M1.93
    28 February 20237.5M-11.9%5.1M1.47
    15 February 20238.5M+1.5%3.7M2.29
    31 January 20238.4M-4.3%3.4M2.46
    13 January 20238.8M+20.5%4.8M1.83
    30 December 20227.3M-2.0%3.8M1.93
    15 December 20227.4M+3.8%3.4M2.18
    30 November 20227.2M-12.8%3.5M2.04
    15 November 20228.2M-7.2%4.9M1.67
    31 October 20228.9M-10.2%3.6M2.49
    14 October 20229.9M-12.2%4.5M2.20
    30 September 202211.2M+7.9%6.1M1.85
    15 September 202210.4M+6.3%5.0M2.08
    31 August 20229.8M+13.5%4.9M2.00
    15 August 20228.6M-12.0%4.5M1.93
    29 July 20229.8M-11.6%4.5M2.18
    15 July 202211.1M-13.3%6.4M1.74
    30 June 202212.8M-1.3%9.0M1.42
    15 June 202213.0M+20.1%7.7M1.67
    31 May 202210.8M-16.3%8.9M1.22
    13 May 202212.9M+0.8%8.3M1.56
    29 April 202212.8M-3.3%9.2M1.39
    14 April 202213.3M+6.9%8.7M1.53
    31 March 202212.4M-20.8%11.1M1.12
    15 March 202215.7M+20.3%15.2M1.03
    28 February 202213.0M+74.6%9.0M1.44
    15 February 20227.5M+30.7%7.5M1.00
    31 January 20225.7M-24.7%5.1M1.11
    14 January 20227.6M+1.6%5.0M1.53
    31 December 20217.5M+39.0%3.7M2.00
    15 December 20215.4M+26.3%4.3M1.25
    30 November 20214.3M-13.8%4.9M1.00
    15 November 20214.9M-22.8%8.9M1.00
    29 October 20216.4M-10.7%3.6M1.76
    15 October 20217.1M+10.6%4.8M1.48
    30 September 20216.5M+15.0%4.1M1.59
    15 September 20215.6M+9.0%3.0M1.86
    31 August 20215.2M-18.1%3.4M1.51
    13 August 20216.3M-1.8%4.3M1.46
    30 July 20216.4M+1.0%3.5M1.82
    15 July 20216.3M-6.2%3.8M1.65
    30 June 20216.8M+24.4%6.8M1.00
    15 June 20215.4M+9.4%4.8M1.14
    28 May 20215.0M-10.4%4.9M1.02
    14 May 20215.5M-9.2%6.1M1.00
    30 April 20216.1M-8.3%4.5M1.37
    15 April 20216.7M+31.4%4.6M1.43
    31 March 20215.1M-15.1%5.9M1.00
    15 March 20216.0M+53.0%5.5M1.08
    26 February 20213.9M-28.5%8.0M1.00
    12 February 20215.5M-12.7%4.0M1.35
    29 January 20216.3M-20.1%3.6M1.73
    15 January 20217.8M+23.9%6.0M1.30
    31 December 20206.3M-24.9%4.1M1.54
    15 December 20208.4M+56.4%5.0M1.69
    30 November 20205.4M+8.2%4.6M1.18
    13 November 20205.0M-44.0%6.2M1.00
    30 October 20208.9M+20.0%3.4M2.58
    15 October 20207.4M+18.1%3.6M2.06
    30 September 20206.3M-12.7%6.1M1.03
    15 September 20207.2M-7.7%3.3M2.18
    31 August 20207.8M-1.1%3.1M2.49
    14 August 20207.8M+3.3%6.7M1.18
    31 July 20207.6M+4.1%2.8M2.75
    15 July 20207.3M-22.9%3.9M1.87
    30 June 20209.5M+8.7%3.6M2.66
    15 June 20208.7M-18.7%4.2M2.09
    29 May 202010.7M-13.2%4.2M2.57
    15 May 202012.4M+10.0%4.8M2.56
    30 April 202011.2M-20.0%4.0M2.80
    15 April 202014.0M+12.3%5.2M2.68
    31 March 202012.5M-17.8%7.1M1.76
    13 March 202015.2M-0.6%7.4M2.06
    28 February 202015.3M+2.8%8.5M1.80
    14 February 202014.9M-11.2%3.9M3.80
    31 January 202016.7M+5.2%4.7M3.59
    15 January 202015.9M-5.6%3.5M4.51
    31 December 201916.9M+27.8%5.0M3.40
    13 December 201913.2M+5.5%3.6M3.71
    29 November 201912.5M-7.1%3.7M3.37
    15 November 201913.5M+2.9%5.2M2.59
    31 October 201913.1M+6.2%3.0M4.43
    15 October 201912.3M-10.4%4.8M2.59
    30 September 201913.8M+2.6%5.0M2.75
    13 September 201913.4M-8.0%5.3M2.53
    30 August 201914.6M-6.9%4.9M2.97
    15 August 201915.7M+35.2%7.7M2.04
    31 July 201911.6M-7.6%3.6M3.23
    15 July 201912.5M+13.7%4.7M2.64
    28 June 201911.0M+19.5%6.6M1.66
    14 June 20199.2M+3.8%5.2M1.79
    31 May 20198.9M+16.0%4.5M1.99
    15 May 20197.7M+47.8%5.3M1.45
    30 April 20195.2M-21.4%4.6M1.12
    15 April 20196.6M+3.7%3.4M1.94
    29 March 20196.3M+5.7%3.9M1.63
    15 March 20196.0M-14.2%5.0M1.20
    28 February 20197.0M+11.0%5.4M1.30
    15 February 20196.3M-3.0%3.9M1.61
    31 January 20196.5M-12.0%3.1M2.12
    15 January 20197.4M-0.8%3.2M2.28
    31 December 20187.5M-21.5%3.9M1.91
    14 December 20189.5M+1.7%4.9M1.95
    30 November 20189.3M-0.2%3.7M2.53
    15 November 20189.3M+4.5%5.6M1.67
    31 October 20188.9M-22.4%4.5M2.00
    15 October 201811.5M+6.7%3.8M3.01
    28 September 201810.8M-0.9%4.1M2.67
    14 September 201810.9M+4.4%2.9M3.77
    31 August 201810.5M-10.6%4.0M2.59
    15 August 201811.7M+1.8%5.3M2.20
    31 July 201811.5M-12.5%3.6M3.20
    13 July 201813.1M-1.2%2.6M5.05
    29 June 201813.3M-15.7%3.7M3.58
    15 June 201815.8M+10.2%4.0M3.96
    31 May 201814.3M+8.5%4.4M3.29
    15 May 201813.2M+10.0%4.8M2.73
    30 April 201812.0M-1.8%4.3M2.79
    13 April 201812.2M+0.2%3.8M3.25
    29 March 201812.2M-9.7%4.3M2.81
    15 March 201813.5M-10.3%4.9M2.74
    28 February 201815.1M+8.2%6.4M2.35
    15 February 201813.9M-7.6%5.2M2.67
    31 January 201815.1M-11.7%5.2M2.92
    12 January 201817.0M+12.0%4.6M3.73
    29 December 201715.2M3.6M4.28
    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.