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Stock research / United States / CSX / Short interest

CSX Corp. short interest

40.1M shares of CSX were sold short at the 15 October 2026 settlement, near the top of its range over the last year (24.9M to 43.0M). Short sellers would need 4.7 days of normal trading to buy them back.

Shares sold short40.1Mat 15 Oct 2026
Change on the settlement before-6.6%+45% over a year
Days to cover4.68at 8.6M shares a day
Of shares in issue2.18%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 (24.9M to 43.0M), and the share price moved +35% 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 202640.1M-6.6%8.6M4.68
    30 September 202643.0M+5.5%11.9M3.62
    15 September 202640.8M-0.8%9.3M4.37
    31 August 202641.1M+19.7%8.6M4.76
    14 August 202634.3M-5.6%9.9M3.46
    31 July 202636.4M-1.7%16.2M2.25
    15 July 202637.0M-5.1%10.1M3.64
    30 June 202639.0M-4.4%13.2M2.96
    15 June 202640.8M+6.9%11.4M3.58
    29 May 202638.2M+13.1%12.9M2.96
    15 May 202633.7M-13.7%12.2M2.76
    30 April 202639.1M-7.1%13.3M2.94
    15 April 202642.1M+4.1%11.3M3.73
    31 March 202640.4M+14.4%13.5M2.98
    13 March 202635.3M+10.2%12.9M2.74
    27 February 202632.1M+3.2%10.8M2.97
    13 February 202631.0M-2.5%13.9M2.24
    30 January 202631.8M-9.3%16.0M1.99
    15 January 202635.1M+4.8%14.8M2.38
    31 December 202533.5M+5.6%10.3M3.24
    15 December 202531.7M-5.0%12.3M2.59
    28 November 202533.4M+9.3%14.6M2.29
    14 November 202530.5M+22.6%11.7M2.62
    31 October 202524.9M-10.1%13.5M1.85
    15 October 202527.7M-3.0%13.8M2.00
    30 September 202528.6M-16.5%19.2M1.49
    15 September 202534.2M+17.4%11.1M3.09
    29 August 202529.1M+6.0%32.1M1.00
    15 August 202527.5M+10.2%16.2M1.70
    31 July 202525.0M+6.0%24.7M1.01
    15 July 202523.5M-5.9%12.6M1.86
    30 June 202525.0M-15.1%14.8M1.69
    13 June 202529.5M+12.8%15.2M1.94
    30 May 202526.1M-3.2%15.8M1.65
    15 May 202527.0M-5.5%13.2M2.04
    30 April 202528.5M-7.1%16.8M1.70
    15 April 202530.7M+10.6%19.1M1.61
    31 March 202527.8M-6.8%14.0M1.99
    14 March 202529.8M+12.4%17.4M1.71
    28 February 202526.5M+3.1%14.5M1.82
    14 February 202525.7M-12.6%10.5M2.45
    31 January 202529.4M-5.3%17.3M1.70
    15 January 202531.1M-7.4%13.6M2.28
    31 December 202433.6M-1.5%10.9M3.08
    13 December 202434.1M+18.0%11.5M2.95
    29 November 202428.9M+21.3%9.2M3.15
    15 November 202423.8M+5.3%13.3M1.78
    31 October 202422.6M-18.3%14.2M1.59
    15 October 202427.7M+15.0%9.6M2.88
    30 September 202424.1M+19.6%11.4M2.11
    13 September 202420.1M-18.4%10.3M1.94
    30 August 202424.6M-3.9%8.7M2.84
    15 August 202425.7M+2.1%12.0M2.14
    31 July 202425.1M-14.8%11.1M2.26
    15 July 202429.5M-10.1%9.7M3.04
    28 June 202432.8M-0.8%13.5M2.42
    14 June 202433.1M+7.4%8.5M3.88
    31 May 202430.8M-1.3%12.1M2.55
    15 May 202431.2M-2.2%9.9M3.16
    30 April 202431.9M+4.7%16.6M1.92
    15 April 202430.5M+21.5%11.9M2.56
    28 March 202425.1M+7.3%11.1M2.27
    15 March 202423.4M+6.6%10.0M2.34
    29 February 202422.0M+5.8%14.2M1.55
    15 February 202420.7M+5.8%10.3M2.01
    31 January 202419.6M+18.3%14.8M1.32
    12 January 202416.6M-2.7%8.0M2.07
    29 December 202317.1M-22.5%8.1M2.11
    15 December 202322.0M-15.2%14.8M1.49
    30 November 202325.9M+46.7%12.0M2.15
    15 November 202317.7M+2.8%11.5M1.53
    31 October 202317.2M+7.4%14.1M1.22
    13 October 202316.0M-13.6%12.7M1.26
    29 September 202318.5M+3.7%13.1M1.41
    15 September 202317.9M-0.9%15.7M1.14
    31 August 202318.0M+16.6%10.6M1.71
    15 August 202315.4M-6.7%12.8M1.21
    31 July 202316.6M-0.6%17.3M1.00
    14 July 202316.7M-2.9%10.7M1.56
    30 June 202317.2M-15.9%11.0M1.56
    15 June 202320.4M+7.7%12.1M1.69
    31 May 202319.0M-0.1%12.1M1.57
    15 May 202319.0M+4.8%9.0M2.11
    28 April 202318.1M-7.9%15.3M1.18
    14 April 202319.7M+2.1%13.4M1.47
    31 March 202319.3M+2.0%14.2M1.35
    15 March 202318.9M-12.7%14.4M1.31
    28 February 202321.6M+29.1%15.1M1.43
    15 February 202316.8M-11.3%12.1M1.38
    31 January 202318.9M+13.4%16.0M1.18
    13 January 202316.7M+0.9%10.5M1.59
    30 December 202216.5M-23.9%11.9M1.38
    15 December 202221.7M-2.0%13.4M1.62
    30 November 202222.2M+3.4%14.2M1.56
    15 November 202221.4M+3.2%14.7M1.46
    31 October 202220.8M+10.7%18.6M1.12
    14 October 202218.8M-1.4%15.9M1.18
    30 September 202219.0M-20.1%21.1M1.00
    15 September 202223.8M+21.4%16.3M1.46
    31 August 202219.6M-12.0%13.0M1.50
    15 August 202222.3M-12.2%12.8M1.75
    29 July 202225.4M+10.5%16.0M1.59
    15 July 202223.0M-22.4%15.1M1.53
    30 June 202229.6M+13.5%18.3M1.61
    15 June 202226.1M+14.0%14.3M1.82
    31 May 202222.9M+5.0%21.9M1.05
    13 May 202221.8M-2.1%16.7M1.30
    29 April 202222.3M+2.5%13.9M1.60
    14 April 202221.7M-7.7%13.2M1.64
    31 March 202223.5M+1.6%16.2M1.45
    15 March 202223.2M-2.0%22.0M1.05
    28 February 202223.7M+0.3%13.9M1.70
    15 February 202223.6M+6.0%12.8M1.84
    31 January 202222.2M-2.1%20.6M1.08
    14 January 202222.7M+0.4%11.1M2.04
    31 December 202122.6M-1.6%9.9M2.28
    15 December 202123.0M+9.2%13.2M1.74
    30 November 202121.1M-9.2%14.0M1.50
    15 November 202123.2M-6.2%9.9M2.34
    29 October 202124.7M-10.8%12.3M2.01
    15 October 202127.7M+2.6%12.7M2.18
    30 September 202127.0M+24.1%12.6M2.14
    15 September 202121.8M+19.2%10.7M2.04
    31 August 202118.3M-14.2%7.8M2.35
    13 August 202121.3M+3.3%7.7M2.75
    30 July 202120.6M+16.8%10.8M1.90
    15 July 202117.6M+0.6%12.5M1.41
    30 June 202117.5M-22.2%12.8M1.37
    15 June 202122.6M+36.3%9.9M2.28
    28 May 202116.5M-12.5%10.3M1.60
    14 May 202118.9M+0.4%9.4M2.01
    30 April 202118.8M+1.8%11.6M1.63
    15 April 202118.5M-15.0%6.7M2.76
    31 March 202121.8M-18.1%12.7M1.71
    15 March 202126.6M+21.1%8.1M3.30
    26 February 202121.9M+6.5%10.2M2.16
    12 February 202120.6M-17.6%10.3M2.00
    29 January 202125.0M-5.8%13.0M1.92
    15 January 202126.5M+9.0%11.0M2.41
    31 December 202024.3M-11.1%8.3M2.93
    15 December 202027.4M+16.6%11.2M2.45
    30 November 202023.5M+10.4%8.4M2.79
    13 November 202021.3M-7.2%14.5M1.47
    30 October 202022.9M+18.9%12.7M1.80
    15 October 202019.3M-17.8%9.8M1.96
    30 September 202023.4M+4.6%11.8M1.99
    15 September 202022.4M+23.0%11.4M1.96
    31 August 202018.2M-0.8%7.3M2.49
    14 August 202018.4M-4.1%8.6M2.13
    31 July 202019.1M-2.0%9.2M2.07
    15 July 202019.5M-0.5%9.1M2.15
    30 June 202019.6M-2.2%11.6M1.69
    15 June 202020.1M-14.7%10.9M1.84
    29 May 202023.5M-1.3%12.2M1.93
    15 May 202023.8M+2.5%11.3M2.12
    30 April 202023.3M+0.7%14.3M1.63
    15 April 202023.1M-0.5%13.1M1.76
    31 March 202023.2M-1.4%20.9M1.11
    13 March 202023.5M-14.7%22.2M1.06
    28 February 202027.6M+14.5%18.2M1.52
    14 February 202024.1M-10.5%8.0M3.00
    31 January 202026.9M+6.4%13.6M1.97
    15 January 202025.3M-8.7%8.8M2.86
    31 December 201927.7M+2.3%11.2M2.48
    13 December 201927.1M+18.1%13.5M2.01
    29 November 201922.9M-8.5%9.0M2.54
    15 November 201925.0M-8.3%8.8M2.86
    31 October 201927.3M-1.0%20.4M1.34
    15 October 201927.6M-8.0%14.8M1.87
    30 September 201930.0M-10.1%13.5M2.22
    13 September 201933.3M+14.4%17.6M1.89
    30 August 201929.1M+10.6%12.2M2.39
    15 August 201926.3M-21.2%16.3M1.62
    31 July 201933.4M+10.0%28.1M1.19
    15 July 201930.4M-9.8%8.7M3.48
    28 June 201933.7M-14.1%10.8M3.12
    14 June 201939.2M+3.7%10.2M3.85
    31 May 201937.8M-11.2%15.8M2.40
    15 May 201942.6M+29.3%10.5M4.04
    30 April 201932.9M-4.1%12.2M2.69
    15 April 201934.3M-21.1%13.1M2.61
    29 March 201943.5M+1.5%10.1M4.31
    15 March 201942.8M+12.2%17.0M2.52
    28 February 201938.2M-6.9%13.3M2.88
    15 February 201941.0M-0.4%15.1M2.71
    31 January 201941.2M-12.2%19.7M2.09
    15 January 201946.9M-12.0%15.8M2.97
    31 December 201853.3M-0.5%18.1M2.95
    14 December 201853.6M-3.8%19.1M2.80
    30 November 201855.6M-3.1%14.5M3.84
    15 November 201857.4M+18.8%15.1M3.80
    31 October 201848.3M+20.9%25.1M1.93
    15 October 201840.0M+5.4%17.9M2.24
    28 September 201837.9M-13.9%17.2M2.20
    14 September 201844.1M-9.1%14.5M3.03
    31 August 201848.5M-18.3%12.7M3.81
    15 August 201859.4M+9.2%12.5M4.75
    31 July 201854.4M+61.5%25.1M2.17
    13 July 201833.7M+7.5%11.7M2.88
    29 June 201831.3M-19.4%14.9M2.10
    15 June 201838.9M-1.0%14.1M2.75
    31 May 201839.2M-8.6%11.6M3.37
    15 May 201842.9M-14.3%13.8M3.12
    30 April 201850.1M+12.4%22.5M2.23
    13 April 201844.6M-6.9%16.6M2.68
    29 March 201847.9M-14.9%16.4M2.91
    15 March 201856.2M+22.1%21.2M2.66
    28 February 201846.1M+3.1%19.9M2.31
    15 February 201844.7M+6.4%25.4M1.76
    31 January 201842.0M-15.3%22.6M1.86
    12 January 201849.6M+12.1%18.2M2.73
    29 December 201744.3M27.6M1.61
    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.