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Alliant Energy Corp. short interest

27.4M shares of Alliant Energy were sold short at the 15 October 2026 settlement, near the top of its range over the last year (14.1M to 28.0M). Short sellers would need 9.8 days of normal trading to buy them back.

Shares sold short27.4Mat 15 Oct 2026
Change on the settlement before-0.9%+94% over a year
Days to cover9.80at 2.8M shares a day
Of shares in issue10.57%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 (14.1M to 28.0M), and the share price moved +6% 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

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    Every settlement since 29 Dec 2017 as a table
    SettlementShares shortChangeAverage daily volumeDays to cover
    15 October 202627.4M-0.9%2.8M9.80
    30 September 202627.7M+8.5%3.1M9.06
    15 September 202625.5M+2.9%2.0M12.73
    31 August 202624.8M+5.1%1.8M13.43
    14 August 202623.6M-13.5%2.9M8.09
    31 July 202627.3M-2.5%2.5M10.73
    15 July 202628.0M-0.1%2.2M12.75
    30 June 202628.0M+9.5%2.9M9.73
    15 June 202625.6M+6.0%2.3M10.95
    29 May 202624.1M+8.5%2.4M10.23
    15 May 202622.2M+2.0%2.8M7.86
    30 April 202621.8M+4.7%2.0M10.80
    15 April 202620.8M+0.5%1.7M12.28
    31 March 202620.7M+1.0%2.1M10.01
    13 March 202620.5M+1.2%2.3M8.88
    27 February 202620.3M+5.9%3.8M5.38
    13 February 202619.1M-9.1%2.9M6.54
    30 January 202621.1M+7.8%2.5M8.42
    15 January 202619.5M-0.0%2.1M9.32
    31 December 202519.5M-0.4%1.6M12.30
    15 December 202519.6M+0.9%2.0M10.00
    28 November 202519.4M+25.1%1.8M10.76
    14 November 202515.5M+0.2%2.5M6.10
    31 October 202515.5M+9.7%2.3M6.76
    15 October 202514.1M+1.8%1.8M7.94
    30 September 202513.9M+0.6%1.8M7.76
    15 September 202513.8M+6.0%1.6M8.85
    29 August 202513.0M+9.7%2.0M6.52
    15 August 202511.9M+54.2%2.0M5.93
    31 July 20257.7M+21.3%1.8M4.17
    15 July 20256.4M-0.5%1.9M3.29
    30 June 20256.4M-1.8%1.8M3.53
    13 June 20256.5M-8.1%1.7M3.78
    30 May 20257.1M-13.8%2.0M3.57
    15 May 20258.2M+14.7%2.7M2.99
    30 April 20257.2M+3.3%1.9M3.77
    15 April 20256.9M+1.0%2.2M3.19
    31 March 20256.9M-7.8%2.1M3.29
    14 March 20257.4M-13.3%2.3M3.21
    28 February 20258.6M+1.4%2.6M3.26
    14 February 20258.5M-1.4%1.5M5.66
    31 January 20258.6M+10.9%1.4M5.96
    15 January 20257.7M-3.8%1.4M5.55
    31 December 20248.0M+3.9%1.3M6.09
    13 December 20247.7M+9.3%1.3M6.07
    29 November 20247.1M+16.0%1.5M4.61
    15 November 20246.1M-17.5%2.4M2.56
    31 October 20247.4M+8.6%1.5M5.01
    15 October 20246.8M-0.8%1.3M5.42
    30 September 20246.9M-3.9%1.4M4.98
    13 September 20247.1M+4.4%1.0M6.94
    30 August 20246.8M+7.7%847K8.08
    15 August 20246.4M+2.3%1.5M4.22
    31 July 20246.2M+5.7%1.6M3.97
    15 July 20245.9M-1.1%1.3M4.45
    28 June 20245.9M+22.8%1.9M3.14
    14 June 20244.8M+7.3%1.2M3.91
    31 May 20244.5M-12.9%1.2M3.68
    15 May 20245.2M-1.8%1.5M3.36
    30 April 20245.3M+20.8%1.5M3.41
    15 April 20244.4M-14.9%1.5M2.83
    28 March 20245.1M+7.6%1.8M2.89
    15 March 20244.8M-12.0%2.1M2.32
    29 February 20245.4M+6.8%1.9M2.78
    15 February 20245.1M+6.3%1.8M2.81
    31 January 20244.8M+4.3%2.7M1.77
    12 January 20244.6M-3.6%1.7M2.76
    29 December 20234.7M-20.6%1.5M3.17
    15 December 20236.0M+19.4%2.0M2.98
    30 November 20235.0M-9.2%1.9M2.64
    15 November 20235.5M+5.7%2.0M2.78
    31 October 20235.2M+9.5%1.4M3.61
    13 October 20234.8M+0.7%2.0M2.44
    29 September 20234.7M+15.1%1.6M2.99
    15 September 20234.1M+1.1%1.8M2.33
    31 August 20234.1M-15.1%1.5M2.73
    15 August 20234.8M+4.8%1.5M3.16
    31 July 20234.6M+11.9%1.1M3.97
    14 July 20234.1M-4.2%1.3M3.24
    30 June 20234.3M-4.3%1.4M3.01
    15 June 20234.5M+5.8%1.6M2.84
    31 May 20234.2M-3.6%1.3M3.24
    15 May 20234.4M+10.5%1.3M3.27
    28 April 20233.9M-3.7%1.3M3.11
    14 April 20234.1M-4.6%1.5M2.75
    31 March 20234.3M-7.4%1.8M2.34
    15 March 20234.6M+17.8%1.8M2.59
    28 February 20233.9M+22.6%1.9M2.06
    15 February 20233.2M+13.4%1.3M2.39
    31 January 20232.8M-8.5%1.2M2.28
    13 January 20233.1M+9.1%1.1M2.75
    30 December 20222.8M+8.8%1.1M2.47
    15 December 20222.6M-18.6%1.4M1.83
    30 November 20223.2M+1.1%1.2M2.61
    15 November 20223.2M+0.5%1.9M1.67
    31 October 20223.2M+11.3%1.9M1.69
    14 October 20222.8M-25.5%2.3M1.23
    30 September 20223.8M-0.8%1.5M2.58
    15 September 20223.8M+20.5%1.3M2.97
    31 August 20223.2M+2.6%1.0M3.10
    15 August 20223.1M+28.9%1.6M1.95
    29 July 20222.4M+9.6%1.2M2.07
    15 July 20222.2M+10.3%1.1M2.03
    30 June 20222.0M-11.4%1.7M1.18
    15 June 20222.2M-42.3%1.5M1.45
    31 May 20223.9M+2.5%3.1M1.26
    13 May 20223.8M+8.3%1.8M2.14
    29 April 20223.5M+4.2%1.4M2.45
    14 April 20223.4M+2.2%1.2M2.84
    31 March 20223.3M-4.0%1.2M2.77
    15 March 20223.4M+10.6%1.1M3.02
    28 February 20223.1M+0.1%1.3M2.47
    15 February 20223.1M-3.3%983K3.15
    31 January 20223.2M+12.4%1.2M2.67
    14 January 20222.9M+3.1%977K2.92
    31 December 20212.8M-4.9%793K3.49
    15 December 20212.9M-9.8%1.1M2.66
    30 November 20213.2M-12.8%1.6M2.03
    15 November 20213.7M+9.6%1.1M3.24
    29 October 20213.4M+8.0%1.0M3.35
    15 October 20213.1M+5.4%1.1M2.84
    30 September 20213.0M-9.5%1.1M2.80
    15 September 20213.3M-3.9%927K3.54
    31 August 20213.4M-7.2%935K3.65
    13 August 20213.7M+0.5%989K3.72
    30 July 20213.7M+1.6%1.0M3.62
    15 July 20213.6M-14.6%1.0M3.44
    30 June 20214.2M-6.6%1.2M3.43
    15 June 20214.5M-0.8%1.1M4.24
    28 May 20214.6M+20.5%2.2M2.11
    14 May 20213.8M-6.4%1.3M3.00
    30 April 20214.0M+1.3%1.1M3.67
    15 April 20214.0M-15.5%976K4.08
    31 March 20214.7M+31.1%1.8M2.62
    15 March 20213.6M+29.2%1.4M2.52
    26 February 20212.8M+12.3%1.2M2.27
    12 February 20212.5M-10.9%864K2.87
    29 January 20212.8M+22.6%1.3M2.10
    15 January 20212.3M+5.5%906K2.51
    31 December 20202.2M-10.6%1.1M1.97
    15 December 20202.4M+0.2%1.1M2.28
    30 November 20202.4M+17.6%1.1M2.26
    13 November 20202.0M+17.2%1.2M1.75
    30 October 20201.7M-22.6%1.0M1.68
    15 October 20202.3M-6.4%1.1M2.05
    30 September 20202.4M-16.2%1.4M1.76
    15 September 20202.9M-1.4%1.7M1.66
    31 August 20202.9M+5.0%870K3.35
    14 August 20202.8M-0.8%1.1M2.64
    31 July 20202.8M+12.8%1.1M2.66
    15 July 20202.5M-45.9%1.3M1.91
    30 June 20204.6M-0.5%1.7M2.63
    15 June 20204.6M+27.6%1.2M3.77
    29 May 20203.6M-6.7%971K3.71
    15 May 20203.9M+9.6%1.3M3.01
    30 April 20203.5M-7.1%1.1M3.22
    15 April 20203.8M+0.8%1.4M2.65
    31 March 20203.8M-0.9%2.8M1.33
    13 March 20203.8M+9.6%2.3M1.64
    28 February 20203.5M-1.7%1.9M1.83
    14 February 20203.5M+5.5%1.2M2.87
    31 January 20203.3M-30.0%1.3M2.53
    15 January 20204.8M-22.4%1.4M3.49
    31 December 20196.1M-10.5%1.7M3.58
    13 December 20196.9M-13.2%1.1M6.29
    29 November 20197.9M-6.0%1.4M5.66
    15 November 20198.4M+13.2%1.8M4.58
    31 October 20197.4M-11.5%1.3M5.75
    15 October 20198.4M+4.8%1.0M8.19
    30 September 20198.0M-0.7%1.2M6.77
    13 September 20198.1M-0.7%1.6M5.03
    30 August 20198.1M-10.8%1.1M7.37
    15 August 20199.1M-2.7%1.3M7.13
    31 July 20199.4M-0.3%899K10.43
    15 July 20199.4M-3.1%904K10.40
    28 June 20199.7M-1.4%1.4M6.90
    14 June 20199.8M+5.0%1.0M9.59
    31 May 20199.4M+8.8%986K9.50
    15 May 20198.6M-2.6%1.1M7.99
    30 April 20198.8M+11.8%1.1M7.94
    15 April 20197.9M-11.9%1.1M7.14
    29 March 20199.0M-5.3%1.2M7.37
    15 March 20199.5M+7.1%2.0M4.62
    28 February 20198.8M-5.5%1.5M5.90
    15 February 20199.4M+10.1%1.6M5.70
    31 January 20198.5M-3.1%1.7M4.98
    15 January 20198.8M-3.2%2.0M4.48
    31 December 20189.1M+98.4%2.8M3.23
    14 December 20184.6M+13.8%2.1M2.13
    30 November 20184.0M-16.2%1.4M2.85
    15 November 20184.8M+1.8%1.8M2.65
    31 October 20184.7M+4.4%1.6M2.90
    15 October 20184.5M-30.6%1.6M2.73
    28 September 20186.5M+15.0%1.6M4.13
    14 September 20185.6M-3.2%1.0M5.55
    31 August 20185.8M+15.5%921K6.33
    15 August 20185.0M+1.6%1.6M3.06
    31 July 20185.0M-1.0%1.1M4.44
    13 July 20185.0M-5.6%1.1M4.37
    29 June 20185.3M-31.7%1.6M3.32
    15 June 20187.8M+0.4%1.6M4.83
    31 May 20187.7M+8.3%1.9M3.99
    15 May 20187.2M-17.9%1.4M5.02
    30 April 20188.7M+11.6%1.5M5.82
    13 April 20187.8M-10.4%1.9M4.10
    29 March 20188.7M+8.4%2.0M4.39
    15 March 20188.0M+15.7%2.0M4.09
    28 February 20186.9M-4.3%2.1M3.24
    15 February 20187.3M-19.5%2.2M3.26
    31 January 20189.0M+12.0%2.0M4.55
    12 January 20188.0M+17.1%1.6M5.04
    29 December 20176.9M1.2M5.75
    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.