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Stock research / United States / WDC / Short interest

Western Digital Corp. short interest

19.4M shares of Western Digital were sold short at the 15 October 2026 settlement, near the bottom of its range over the last year (17.3M to 36.9M). Short sellers would need 1.9 days of normal trading to buy them back.

Shares sold short19.4Mat 15 Oct 2026
Change on the settlement before+6.3%-43% over a year
Days to cover1.88at 10.4M shares a day
Of shares in issue5.20%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 bottom of its range over the last year (17.3M to 36.9M), and the share price moved +119% 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 202619.4M+6.3%10.4M1.88
    30 September 202618.3M+5.9%7.5M2.45
    15 September 202617.3M-13.1%5.5M3.13
    31 August 202619.9M-1.9%6.3M3.14
    14 August 202620.3M-17.6%9.0M2.26
    31 July 202624.6M+5.8%7.7M3.18
    15 July 202623.3M+3.9%6.8M3.43
    30 June 202622.4M-15.4%13.8M1.62
    15 June 202626.4M-17.0%6.8M3.87
    29 May 202631.9M+7.1%6.4M5.02
    15 May 202629.8M+2.1%8.5M3.50
    30 April 202629.1M+8.9%7.0M4.18
    15 April 202626.8M+0.4%7.5M3.56
    31 March 202626.7M-3.3%9.5M2.81
    13 March 202627.6M-7.7%7.8M3.53
    27 February 202629.9M-5.4%8.9M3.36
    13 February 202631.6M+0.1%11.8M2.67
    30 January 202631.5M-5.9%10.7M2.95
    15 January 202633.5M-9.1%9.6M3.50
    31 December 202536.9M+17.6%8.1M4.54
    15 December 202531.4M+1.7%6.6M4.77
    28 November 202530.8M-8.3%7.8M3.93
    14 November 202533.6M+5.2%9.9M3.40
    31 October 202532.0M-6.5%10.3M3.10
    15 October 202534.2M-7.2%10.4M3.29
    30 September 202536.8M-6.7%9.5M3.86
    15 September 202539.5M+12.4%10.1M3.91
    29 August 202535.1M+5.4%5.5M6.36
    15 August 202533.3M+1.3%6.4M5.25
    31 July 202532.9M-0.4%8.1M4.04
    15 July 202533.0M-1.7%6.1M5.44
    30 June 202533.6M-2.9%6.5M5.18
    13 June 202534.6M+10.4%6.3M5.48
    30 May 202531.4M-1.7%5.8M5.38
    15 May 202531.9M+7.0%7.2M4.44
    30 April 202529.8M-2.2%7.0M4.28
    15 April 202530.5M-5.4%13.1M2.33
    31 March 202532.2M-3.8%6.0M5.39
    14 March 202533.5M+4.2%9.0M3.72
    28 February 202532.1M+8.6%9.4M3.43
    14 February 202529.6M+22.2%6.2M4.76
    31 January 202524.2M+10.6%8.2M2.93
    15 January 202521.9M+6.1%4.7M4.62
    31 December 202420.6M-1.2%5.5M3.74
    13 December 202420.8M-4.1%4.8M4.38
    29 November 202421.7M+20.1%5.7M3.82
    15 November 202418.1M+11.4%4.3M4.18
    31 October 202416.3M-9.3%6.4M2.55
    15 October 202417.9M-8.3%4.1M4.37
    30 September 202419.5M+6.1%5.2M3.74
    13 September 202418.4M+6.0%3.8M4.84
    30 August 202417.4M-0.6%4.3M4.07
    15 August 202417.5M-2.7%9.1M1.91
    31 July 202417.9M-16.4%7.3M2.45
    15 July 202421.5M-10.9%3.5M6.07
    28 June 202424.1M-5.8%5.3M4.54
    14 June 202425.6M+3.5%4.8M5.32
    31 May 202424.7M+13.2%5.3M4.63
    15 May 202421.8M-2.0%5.6M3.86
    30 April 202422.2M+17.5%7.5M2.98
    15 April 202418.9M+18.1%7.9M2.40
    28 March 202416.0M+2.9%6.7M2.38
    15 March 202415.6M-16.8%7.1M2.20
    29 February 202418.7M+3.8%5.3M3.55
    15 February 202418.0M+3.2%5.5M3.28
    31 January 202417.5M+13.4%10.6M1.65
    12 January 202415.4M+15.8%4.5M3.42
    29 December 202313.3M-12.7%3.7M3.55
    15 December 202315.2M+2.4%6.0M2.52
    30 November 202314.9M-7.9%5.0M2.98
    15 November 202316.2M+89.3%6.1M2.65
    31 October 20238.5M+8.7%7.7M1.11
    13 October 20237.9M+4.2%2.7M2.89
    29 September 20237.5M-4.7%3.7M2.03
    15 September 20237.9M+6.8%3.4M2.34
    31 August 20237.4M+2.8%2.8M2.68
    15 August 20237.2M+18.9%3.2M2.27
    31 July 20236.1M+8.5%3.7M1.62
    14 July 20235.6M-8.4%3.3M1.68
    30 June 20236.1M-23.9%3.7M1.66
    15 June 20238.0M+8.7%3.1M2.56
    31 May 20237.4M-6.1%4.3M1.71
    15 May 20237.8M-4.1%4.0M1.97
    28 April 20238.2M+15.9%3.4M2.38
    14 April 20237.1M-11.2%5.0M1.41
    31 March 20237.9M+0.2%3.6M2.23
    15 March 20237.9M-1.1%4.2M1.91
    28 February 20238.0M-8.2%3.0M2.68
    15 February 20238.7M+6.3%4.7M1.87
    31 January 20238.2M+8.5%5.5M1.50
    13 January 20237.6M-6.3%6.0M1.27
    30 December 20228.1M+9.3%4.6M1.77
    15 December 20227.4M-14.6%5.6M1.32
    30 November 20228.7M+1.9%3.5M2.46
    15 November 20228.5M+24.5%4.2M2.01
    31 October 20226.8M-28.8%5.0M1.36
    14 October 20229.6M+19.0%6.6M1.46
    30 September 20228.1M-2.1%5.1M1.59
    15 September 20228.2M+18.6%4.9M1.69
    31 August 20226.9M+7.9%2.7M2.61
    15 August 20226.4M-4.0%3.4M1.91
    29 July 20226.7M-27.2%3.0M2.24
    15 July 20229.2M+0.2%3.2M2.92
    30 June 20229.2M+29.6%4.1M2.24
    15 June 20227.1M+10.0%3.7M1.93
    31 May 20226.5M-18.1%3.1M2.08
    13 May 20227.9M+10.7%6.5M1.21
    29 April 20227.1M-9.0%4.9M1.45
    14 April 20227.8M+17.0%3.6M2.20
    31 March 20226.7M-2.2%2.6M2.54
    15 March 20226.8M+18.8%3.7M1.85
    28 February 20225.7M-14.9%3.5M1.66
    15 February 20226.8M+13.7%4.0M1.70
    31 January 20225.9M-14.5%6.7M1.00
    14 January 20226.9M-11.6%3.8M1.85
    31 December 20217.9M-10.7%3.5M2.24
    15 December 20218.8M+11.9%3.4M2.58
    30 November 20217.9M+11.5%4.1M1.90
    15 November 20217.0M-3.4%4.0M1.75
    29 October 20217.3M-9.9%4.3M1.68
    15 October 20218.1M+10.8%2.7M2.97
    30 September 20217.3M-14.1%2.8M2.65
    15 September 20218.5M+5.7%3.6M2.34
    31 August 20218.0M+1.4%5.1M1.57
    13 August 20217.9M+27.4%5.4M1.46
    30 July 20216.2M+23.5%3.6M1.75
    15 July 20215.0M+0.1%3.0M1.66
    30 June 20215.0M-3.6%3.4M1.47
    15 June 20215.2M-3.0%2.8M1.89
    28 May 20215.4M-9.3%5.7M1.00
    14 May 20215.9M+17.3%3.9M1.53
    30 April 20215.1M-13.4%3.6M1.39
    15 April 20215.9M+10.9%3.4M1.71
    31 March 20215.3M-9.5%4.1M1.30
    15 March 20215.8M-8.4%5.4M1.07
    26 February 20216.4M+2.3%4.6M1.40
    12 February 20216.2M-7.6%3.5M1.77
    29 January 20216.7M-21.8%4.3M1.58
    15 January 20218.6M+11.0%4.7M1.82
    31 December 20207.8M-2.4%3.3M2.37
    15 December 20207.9M-16.3%4.2M1.91
    30 November 20209.5M+9.8%3.4M2.80
    13 November 20208.6M+8.2%3.9M2.22
    30 October 20208.0M-25.8%7.5M1.07
    15 October 202010.8M+2.2%4.6M2.34
    30 September 202010.5M+13.0%5.4M1.94
    15 September 20209.3M-9.6%5.7M1.63
    31 August 202010.3M+0.4%5.2M1.96
    14 August 202010.3M+31.2%8.7M1.18
    31 July 20207.8M+1.8%4.2M1.84
    15 July 20207.7M-14.8%3.8M2.02
    30 June 20209.0M-14.7%5.3M1.69
    15 June 202010.6M-7.6%5.2M2.05
    29 May 202011.5M+15.0%4.7M2.42
    15 May 202010.0M+13.4%6.9M1.44
    30 April 20208.8M+0.7%5.4M1.62
    15 April 20208.7M+12.1%5.2M1.67
    31 March 20207.8M-1.1%7.9M1.00
    13 March 20207.9M+7.7%6.0M1.31
    28 February 20207.3M-10.4%4.6M1.57
    14 February 20208.1M+1.1%3.8M2.16
    31 January 20208.1M-21.2%4.4M1.82
    15 January 202010.2M-20.9%5.1M2.02
    31 December 201912.9M-7.6%4.5M2.88
    13 December 201914.0M+12.0%4.4M3.21
    29 November 201912.5M+19.7%5.1M2.46
    15 November 201910.4M-15.3%5.3M1.96
    31 October 201912.3M-4.0%4.8M2.54
    15 October 201912.8M+7.0%3.4M3.81
    30 September 201912.0M-14.7%4.6M2.58
    13 September 201914.1M-1.9%4.4M3.19
    30 August 201914.3M-8.7%3.4M4.18
    15 August 201915.7M-2.6%5.8M2.70
    31 July 201916.1M-24.3%5.6M2.87
    15 July 201921.3M+12.0%7.3M2.94
    28 June 201919.0M+6.2%8.0M2.38
    14 June 201917.9M+9.4%5.7M3.16
    31 May 201916.4M+0.6%4.9M3.36
    15 May 201916.3M+15.2%5.5M2.94
    30 April 201914.1M-3.5%7.5M1.87
    15 April 201914.6M-24.4%5.0M2.91
    29 March 201919.4M-2.7%7.2M2.69
    15 March 201919.9M+7.4%7.4M2.68
    28 February 201918.5M-8.7%6.0M3.10
    15 February 201920.3M+0.9%5.9M3.43
    31 January 201920.1M+12.4%11.0M1.82
    15 January 201917.9M+7.3%7.3M2.45
    31 December 201816.7M+29.3%6.7M2.47
    14 December 201812.9M+2.4%6.1M2.11
    30 November 201812.6M+9.1%6.1M2.05
    15 November 201811.5M-0.2%5.6M2.06
    31 October 201811.6M+3.1%8.4M1.38
    15 October 201811.2M-3.9%4.2M2.67
    28 September 201811.7M+23.1%5.1M2.29
    14 September 20189.5M+5.3%5.7M1.65
    31 August 20189.0M-0.1%3.2M2.83
    15 August 20189.0M+11.7%4.8M1.89
    31 July 20188.1M+0.3%4.2M1.93
    13 July 20188.1M+0.0%2.4M3.37
    29 June 20188.0M+2.1%3.4M2.33
    15 June 20187.9M-12.4%4.5M1.77
    31 May 20189.0M+6.6%4.2M2.16
    15 May 20188.4M+41.1%4.4M1.91
    30 April 20186.0M-27.2%4.0M1.49
    13 April 20188.2M+7.7%2.7M3.01
    29 March 20187.6M-9.3%4.2M1.81
    15 March 20188.4M+1.6%4.5M1.85
    28 February 20188.3M-4.5%3.1M2.63
    15 February 20188.7M-9.3%4.0M2.18
    31 January 20189.6M-27.5%5.4M1.77
    12 January 201813.2M+23.2%3.9M3.34
    29 December 201710.7M3.5M3.08
    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.