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Core Laboratories Inc. short interest

4.9M shares of Core Laboratories were sold short at the 15 October 2026 settlement, near the middle of its range over the last year (4.0M to 6.4M). Short sellers would need 7.3 days of normal trading to buy them back.

Shares sold short4.9Mat 15 Oct 2026
Change on the settlement before+1.0%-23% over a year
Days to cover7.28at 676K shares a day
Of shares in issue10.72%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 middle of its range over the last year (4.0M to 6.4M), and the share price moved -12% 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 20264.9M+1.0%676K7.28
    30 September 20264.9M+11.1%715K6.81
    15 September 20264.4M+7.0%428K10.24
    31 August 20264.1M-3.8%427K9.59
    14 August 20264.3M+1.5%587K7.24
    31 July 20264.2M+4.2%835K5.02
    15 July 20264.0M-32.6%1.6M2.49
    30 June 20266.0M+7.9%1.0M5.78
    15 June 20265.5M-3.0%578K9.58
    29 May 20265.7M+12.7%509K11.21
    15 May 20265.1M+2.6%552K9.18
    30 April 20264.9M+15.9%467K10.58
    15 April 20264.3M-7.4%303K14.06
    31 March 20264.6M+3.2%447K10.29
    13 March 20264.5M+3.1%378K11.78
    27 February 20264.3M+4.1%431K10.04
    13 February 20264.2M-2.0%449K9.24
    30 January 20264.2M+5.2%334K12.71
    15 January 20264.0M-10.6%374K10.78
    31 December 20254.5M+5.5%349K12.91
    15 December 20254.3M+7.8%351K12.18
    28 November 20254.0M-16.5%454K8.73
    14 November 20254.7M-14.0%536K8.86
    31 October 20255.5M-14.0%747K7.39
    15 October 20256.4M-6.8%602K10.65
    30 September 20256.9M-14.3%568K12.13
    15 September 20258.0M-3.4%620K12.96
    29 August 20258.3M+4.7%397K20.94
    15 August 20257.9M+5.5%519K15.30
    31 July 20257.5M-2.2%532K14.14
    15 July 20257.7M+3.7%446K17.28
    30 June 20257.4M-5.5%745K9.97
    13 June 20257.9M+4.2%337K23.35
    30 May 20257.5M-3.1%355K21.23
    15 May 20257.8M+1.6%553K14.08
    30 April 20257.7M+15.8%667K11.49
    15 April 20256.6M+0.1%667K9.92
    31 March 20256.6M+1.1%325K20.32
    14 March 20256.5M+1.0%454K14.38
    28 February 20256.5M+6.5%306K21.11
    14 February 20256.1M-1.3%345K17.63
    31 January 20256.2M-0.7%327K18.79
    15 January 20256.2M-1.5%266K23.32
    31 December 20246.3M-6.6%378K16.64
    13 December 20246.7M+3.6%246K27.33
    29 November 20246.5M-5.0%235K27.70
    15 November 20246.8M-1.5%319K21.45
    31 October 20247.0M-0.5%356K19.54
    15 October 20247.0M+1.8%296K23.59
    30 September 20246.9M+0.0%351K19.57
    13 September 20246.9M-8.0%349K19.67
    30 August 20247.5M-6.0%339K22.01
    15 August 20247.9M-3.2%545K14.56
    31 July 20248.2M+12.0%603K13.60
    15 July 20247.3M+11.1%338K21.66
    28 June 20246.6M-8.1%607K10.86
    14 June 20247.2M+2.3%448K16.02
    31 May 20247.0M+3.1%347K20.19
    15 May 20246.8M+2.8%331K20.52
    30 April 20246.6M+10.7%435K15.20
    15 April 20246.0M-9.4%361K16.53
    28 March 20246.6M+10.0%309K21.33
    15 March 20246.0M+3.4%404K14.82
    29 February 20245.8M-1.5%534K10.86
    15 February 20245.9M+0.1%553K10.63
    31 January 20245.9M+4.4%634K9.27
    12 January 20245.6M-7.5%468K12.04
    29 December 20236.1M-4.0%286K21.26
    15 December 20236.3M+16.4%391K16.20
    30 November 20235.4M-5.1%299K18.18
    15 November 20235.7M-0.0%396K14.47
    31 October 20235.7M-1.7%250K22.95
    13 October 20235.8M+3.3%256K22.79
    29 September 20235.7M+2.1%278K20.36
    15 September 20235.5M-0.7%388K14.26
    31 August 20235.6M-19.2%241K23.16
    15 August 20236.9M+18.3%344K20.06
    31 July 20235.8M-12.9%423K13.77
    14 July 20236.7M+3.5%430K15.59
    30 June 20236.5M+66.3%1.3M5.00
    15 June 20233.9M+3.4%491K7.93
    31 May 20233.8M-2.6%595K6.33
    15 May 20233.9M-25.9%328K11.78
    28 April 20235.2M+23.9%358K14.55
    14 April 20234.2M+13.7%266K15.81
    31 March 20233.7M-4.1%427K8.67
    15 March 20233.9M+4.6%447K8.62
    28 February 20233.7M-4.4%282K13.07
    15 February 20233.9M+2.9%318K12.14
    31 January 20233.7M+2.4%311K12.05
    13 January 20233.7M+1.3%371K9.87
    30 December 20223.6M-25.5%373K9.69
    15 December 20224.8M+3.9%346K14.00
    30 November 20224.7M+14.4%325K14.38
    15 November 20224.1M+0.7%400K10.20
    31 October 20224.0M-6.0%565K7.16
    14 October 20224.3M-11.4%365K11.79
    30 September 20224.9M+2.3%477K10.18
    15 September 20224.8M-12.9%482K9.85
    31 August 20225.5M+24.6%305K17.86
    15 August 20224.4M-4.7%438K10.00
    29 July 20224.6M-11.2%477K9.64
    15 July 20225.2M+25.9%452K11.44
    30 June 20224.1M+2.5%475K8.65
    15 June 20224.0M+5.3%438K9.16
    31 May 20223.8M+3.1%363K10.48
    13 May 20223.7M-6.7%533K6.94
    29 April 20224.0M-1.5%552K7.17
    14 April 20224.0M+5.3%525K7.65
    31 March 20223.8M+6.6%583K6.55
    15 March 20223.6M+14.6%843K4.25
    28 February 20223.1M+1.7%385K8.12
    15 February 20223.1M+8.6%602K5.11
    31 January 20222.8M-2.5%367K7.71
    14 January 20222.9M-2.9%320K9.06
    31 December 20213.0M+3.3%336K8.89
    15 December 20212.9M-3.7%471K6.14
    30 November 20213.0M+3.9%506K5.94
    15 November 20212.9M+8.8%478K6.05
    29 October 20212.7M-9.8%711K3.74
    15 October 20212.9M-8.0%502K5.87
    30 September 20213.2M-10.9%633K5.06
    15 September 20213.6M+6.7%400K8.99
    31 August 20213.4M-11.8%570K5.91
    13 August 20213.8M-3.2%503K7.59
    30 July 20213.9M+1.9%405K9.75
    15 July 20213.9M-2.8%620K6.25
    30 June 20214.0M-20.3%542K7.36
    15 June 20215.0M-6.7%565K8.85
    28 May 20215.4M+49.0%650K8.25
    14 May 20213.6M+2.1%381K9.45
    30 April 20213.5M+6.0%339K10.41
    15 April 20213.3M-5.2%331K10.06
    31 March 20213.5M-9.4%464K7.57
    15 March 20213.9M-10.5%581K6.68
    26 February 20214.3M-6.5%395K10.96
    12 February 20214.6M-8.6%302K15.32
    29 January 20215.1M-7.1%487K10.40
    15 January 20215.4M+4.7%434K12.56
    31 December 20205.2M+5.1%556K9.36
    15 December 20205.0M+9.5%430K11.51
    30 November 20204.5M-3.6%413K10.94
    13 November 20204.7M-3.0%441K10.64
    30 October 20204.8M+1.8%479K10.10
    15 October 20204.7M+1.1%535K8.88
    30 September 20204.7M+4.0%511K9.19
    15 September 20204.5M-1.3%351K12.88
    31 August 20204.6M+0.7%347K13.21
    14 August 20204.5M-9.0%385K11.81
    31 July 20205.0M-2.7%758K6.59
    15 July 20205.1M-6.1%642K8.00
    30 June 20205.5M-33.7%1.7M3.16
    15 June 20208.3M+14.1%905K9.13
    29 May 20207.2M-8.2%686K10.55
    15 May 20207.9M+21.2%993K7.93
    30 April 20206.5M+5.4%1.6M4.00
    15 April 20206.2M-3.1%1.4M4.32
    31 March 20206.4M+25.8%2.4M2.69
    13 March 20205.1M+47.1%2.6M1.93
    28 February 20203.4M+7.0%939K3.66
    14 February 20203.2M+0.8%643K5.00
    31 January 20203.2M-12.8%607K5.25
    15 January 20203.7M+29.2%739K4.94
    31 December 20192.8M-8.5%534K5.30
    13 December 20193.1M-7.1%584K5.30
    29 November 20193.3M-10.0%488K6.82
    15 November 20193.7M-21.1%494K7.49
    31 October 20194.7M+17.2%971K4.82
    15 October 20194.0M+19.7%460K8.69
    30 September 20193.3M+16.8%808K4.13
    13 September 20192.9M-10.2%651K4.39
    30 August 20193.2M-3.8%499K6.38
    15 August 20193.3M-13.4%810K4.08
    31 July 20193.8M+16.2%808K4.73
    15 July 20193.3M-1.5%606K5.42
    28 June 20193.3M+13.9%706K4.72
    14 June 20192.9M+0.8%654K4.48
    31 May 20192.9M-4.0%618K4.70
    15 May 20193.0M+1.9%623K4.86
    30 April 20193.0M+15.5%719K4.14
    15 April 20192.6M-19.5%444K5.81
    29 March 20193.2M-13.4%413K7.74
    15 March 20193.7M-8.7%619K5.97
    28 February 20194.0M-2.0%487K8.31
    15 February 20194.1M-9.2%598K6.90
    31 January 20194.5M+5.8%629K7.22
    15 January 20194.3M-11.3%746K5.76
    31 December 20184.8M-2.3%718K6.75
    14 December 20185.0M-4.2%709K6.99
    30 November 20185.2M-7.9%543K9.53
    15 November 20185.6M-3.9%522K10.77
    31 October 20185.8M-2.7%794K7.37
    15 October 20186.0M+2.0%458K13.12
    28 September 20185.9M+1.0%361K16.32
    14 September 20185.8M+1.3%337K17.29
    31 August 20185.8M+4.4%282K20.44
    15 August 20185.5M-7.7%303K18.21
    31 July 20186.0M-9.6%454K13.17
    13 July 20186.6M+3.9%765K8.65
    29 June 20186.4M-4.0%352K18.07
    15 June 20186.6M+4.5%357K18.56
    31 May 20186.3M-1.1%306K20.74
    15 May 20186.4M-4.9%383K16.78
    30 April 20186.7M-11.6%495K13.64
    13 April 20187.6M+17.2%419K18.23
    29 March 20186.5M-7.6%341K19.08
    15 March 20187.0M+9.3%518K13.61
    28 February 20186.4M-3.4%454K14.21
    15 February 20186.7M-4.1%558K11.96
    31 January 20187.0M-10.7%399K17.47
    12 January 20187.8M+2.1%433K18.00
    29 December 20177.6M360K21.21
    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.