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ICON plc short interest

2.4M shares of ICON were sold short at the 30 October 2026 settlement, near the middle of its range over the last year (1.9M to 3.3M). Short sellers would need 1.7 days of normal trading to buy them back.

Shares sold short2.4Mat 30 Oct 2026
Change on the settlement before-20.0%+26% over a year
Days to cover1.69at 1.4M shares a day
Of shares in issuen/a
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 (1.9M to 3.3M), and the share price moved +19% 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
    30 October 20262.4M-20.0%1.4M1.69
    15 October 20263.0M+6.0%800K3.71
    30 September 20262.8M+6.6%1.1M2.54
    15 September 20262.6M+10.4%948K2.77
    31 August 20262.4M+7.1%475K5.01
    14 August 20262.2M-0.1%638K3.48
    31 July 20262.2M-14.4%963K2.31
    15 July 20262.6M-13.2%611K4.25
    30 June 20263.0M-7.7%1.2M2.42
    15 June 20263.2M+7.8%1.1M2.92
    29 May 20263.0M-8.7%1.2M2.52
    15 May 20263.3M+22.9%938K3.51
    30 April 20262.7M-13.4%1.8M1.48
    15 April 20263.1M+6.8%788K3.92
    31 March 20262.9M+42.8%938K3.09
    13 March 20262.0M+5.2%1.2M1.71
    27 February 20261.9M-3.6%2.0M1.00
    13 February 20262.0M-29.2%5.0M1.00
    30 January 20262.8M+3.0%732K3.86
    15 January 20262.7M+3.9%1.1M2.39
    31 December 20252.6M-5.2%617K4.28
    15 December 20252.8M-0.1%1.0M2.71
    28 November 20252.8M+46.9%1.1M2.47
    14 November 20251.9M+0.5%634K3.00
    31 October 20251.9M-16.1%1.2M1.57
    15 October 20252.3M-9.2%837K2.69
    30 September 20252.5M-13.0%927K2.68
    15 September 20252.9M+21.6%1.3M2.20
    29 August 20252.3M+7.9%794K2.95
    15 August 20252.2M+3.9%1.1M2.07
    31 July 20252.1M-5.9%2.2M1.00
    15 July 20252.2M+6.9%1.0M2.16
    30 June 20252.1M+20.0%1.3M1.66
    13 June 20251.7M+19.9%1.2M1.49
    30 May 20251.4M-5.2%1.2M1.21
    15 May 20251.5M+25.1%2.1M1.00
    30 April 20251.2M-36.2%2.2M1.00
    15 April 20251.9M-16.4%1.3M1.49
    31 March 20252.3M+41.8%913K2.50
    14 March 20251.6M-4.5%1.1M1.52
    28 February 20251.7M+13.8%1.2M1.43
    14 February 20251.5M+6.6%803K1.85
    31 January 20251.4M-13.8%924K1.51
    15 January 20251.6M+2.5%991K1.63
    31 December 20241.6M+3.8%802K1.96
    13 December 20241.5M+14.2%1.1M1.32
    29 November 20241.3M+3.4%1.4M1.00
    15 November 20241.3M+18.8%1.7M1.00
    31 October 20241.1M-38.3%1.9M1.00
    15 October 20241.7M-0.4%508K3.44
    30 September 20241.8M+18.0%688K2.55
    13 September 20241.5M-4.0%844K1.77
    30 August 20241.6M-2.7%289K5.36
    15 August 20241.6M-3.5%376K4.24
    31 July 20241.7M+12.0%692K2.39
    15 July 20241.5M-26.5%446K3.31
    28 June 20242.0M-4.6%1.0M1.91
    14 June 20242.1M+7.2%464K4.53
    31 May 20242.0M+3.8%489K4.01
    15 May 20241.9M-1.6%487K3.88
    30 April 20241.9M+21.5%689K2.79
    15 April 20241.6M+13.7%392K4.03
    28 March 20241.4M-6.9%418K3.32
    15 March 20241.5M-2.7%530K2.82
    29 February 20241.5M-15.2%688K2.23
    15 February 20241.8M-10.4%559K3.24
    31 January 20242.0M+21.2%555K3.64
    12 January 20241.7M-3.5%615K2.71
    29 December 20231.7M+11.5%372K4.65
    15 December 20231.6M-8.0%526K2.95
    30 November 20231.7M-2.0%432K3.90
    15 November 20231.7M-8.2%427K4.02
    31 October 20231.9M+2.0%730K2.56
    13 October 20231.8M-25.4%565K3.25
    29 September 20232.5M+15.7%460K5.35
    15 September 20232.1M-5.0%479K4.45
    31 August 20232.2M-14.9%463K4.84
    15 August 20232.6M+17.2%512K5.15
    31 July 20232.2M-9.7%797K2.82
    14 July 20232.5M+5.6%691K3.60
    30 June 20232.4M+32.3%1.2M1.90
    15 June 20231.8M+32.0%488K3.65
    31 May 20231.3M+13.1%684K1.97
    15 May 20231.2M+19.3%760K1.57
    28 April 20231,000K+4.9%829K1.21
    14 April 2023953K+28.4%384K2.48
    31 March 2023742K-8.4%497K1.49
    15 March 2023811K+10.9%510K1.59
    28 February 2023731K-32.0%663K1.10
    15 February 20231.1M+40.2%441K2.44
    31 January 2023767K-16.8%416K1.84
    13 January 2023922K+14.3%591K1.56
    30 December 2022806K+16.2%407K1.98
    15 December 2022694K-10.0%622K1.12
    30 November 2022771K-2.2%465K1.66
    15 November 2022788K-8.3%691K1.14
    31 October 2022860K-32.2%815K1.05
    14 October 20221.3M-4.3%543K2.33
    30 September 20221.3M-18.2%564K2.35
    15 September 20221.6M+39.9%545K2.97
    31 August 20221.2M-10.6%327K3.54
    15 August 20221.3M+12.0%513K2.52
    29 July 20221.2M-16.7%514K2.25
    15 July 20221.4M-6.4%373K3.72
    30 June 20221.5M+47.5%485K3.06
    15 June 20221.0M+35.3%547K1.84
    31 May 2022743K-11.4%517K1.44
    13 May 2022838K+10.1%432K1.94
    29 April 2022762K-23.8%520K1.46
    14 April 20221.0M-7.8%476K2.10
    31 March 20221.1M+19.4%601K1.81
    15 March 2022909K-6.1%650K1.40
    28 February 2022968K-2.6%1.0M1.00
    15 February 2022993K-12.8%509K1.95
    31 January 20221.1M-8.2%707K1.61
    14 January 20221.2M+12.1%624K1.99
    31 December 20211.1M+11.8%498K2.22
    15 December 2021990K+15.3%406K2.44
    30 November 2021858K+14.6%359K2.39
    15 November 2021749K+6.8%467K1.61
    29 October 2021702K-0.7%379K1.85
    15 October 2021707K-16.1%357K1.98
    30 September 2021842K+11.5%548K1.54
    15 September 2021755K-19.9%375K2.01
    31 August 2021942K-14.8%447K2.11
    13 August 20211.1M+11.7%771K1.43
    30 July 2021990K-11.9%1.1M1.00
    15 July 20211.1M-87.1%1.8M1.00
    30 June 20218.7M+23.5%1.2M7.29
    15 June 20217.1M+9.9%465K15.18
    28 May 20216.4M+2.8%440K14.62
    14 May 20216.3M+10.1%610K10.24
    30 April 20215.7M+13.1%591K9.61
    15 April 20215.0M+31.5%457K10.98
    31 March 20213.8M+27.4%631K6.04
    15 March 20213.0M+111.3%916K3.27
    26 February 20211.4M+120.4%717K1.98
    12 February 2021643K-4.1%220K2.93
    29 January 2021671K-26.9%176K3.80
    15 January 2021918K+33.6%215K4.27
    31 December 2020688K-1.3%163K4.22
    15 December 2020696K+1.0%206K3.38
    30 November 2020689K+10.1%143K4.81
    13 November 2020626K+1.0%192K3.26
    30 October 2020620K-19.1%189K3.28
    15 October 2020766K+16.8%239K3.21
    30 September 2020656K+19.1%223K2.95
    15 September 2020551K+2.4%126K4.37
    31 August 2020538K+2.7%145K3.71
    14 August 2020524K+3.2%155K3.38
    31 July 2020508K-13.4%228K2.22
    15 July 2020586K-1.0%184K3.19
    30 June 2020592K+1.3%218K2.71
    15 June 2020584K-9.9%214K2.74
    29 May 2020648K-22.7%244K2.66
    15 May 2020839K-4.0%230K3.65
    30 April 2020874K-15.4%308K2.84
    15 April 20201.0M-3.7%294K3.51
    31 March 20201.1M+5.8%530K2.02
    13 March 20201.0M+21.2%322K3.16
    28 February 2020837K-7.2%323K2.60
    14 February 2020903K-13.5%137K6.58
    31 January 20201.0M-12.4%163K6.38
    15 January 20201.2M+0.5%232K5.12
    31 December 20191.2M+16.9%232K5.11
    13 December 20191.0M+24.5%253K4.00
    29 November 2019814K+6.6%257K3.17
    15 November 2019764K-11.5%226K3.38
    31 October 2019862K+34.4%266K3.25
    15 October 2019641K+21.4%281K2.29
    30 September 2019529K+17.4%184K2.88
    13 September 2019450K-8.8%235K1.92
    30 August 2019493K-4.7%165K2.99
    15 August 2019518K+3.8%242K2.14
    31 July 2019499K+12.1%256K1.95
    15 July 2019445K-26.7%187K2.37
    28 June 2019607K-9.1%290K2.09
    14 June 2019668K+5.3%242K2.75
    31 May 2019634K+7.7%238K2.67
    15 May 2019588K-16.7%335K1.76
    30 April 2019707K+19.6%311K2.27
    15 April 2019591K-7.2%196K3.01
    29 March 2019636K+3.7%247K2.57
    15 March 2019613K+11.9%527K1.16
    28 February 2019548K+10.8%303K1.81
    15 February 2019495K-1.8%238K2.08
    31 January 2019504K-22.9%261K1.93
    15 January 2019654K+4.2%328K1.99
    31 December 2018628K-30.8%254K2.47
    14 December 2018907K+3.7%418K2.17
    30 November 2018875K+7.7%309K2.83
    15 November 2018812K+8.4%183K4.45
    31 October 2018750K+8.5%301K2.49
    15 October 2018691K-6.7%256K2.70
    28 September 2018740K-9.1%196K3.77
    14 September 2018815K-15.4%212K3.84
    31 August 2018963K-12.1%164K5.87
    15 August 20181.1M-4.2%245K4.46
    31 July 20181.1M+7.8%302K3.78
    13 July 20181.1M-3.2%200K5.30
    29 June 20181.1M+4.1%205K5.35
    15 June 20181.1M+12.7%187K5.63
    31 May 2018934K-8.6%195K4.78
    15 May 20181.0M-4.3%223K4.59
    30 April 20181.1M+12.9%210K5.08
    13 April 2018946K-6.0%331K2.86
    29 March 20181.0M-4.2%268K3.76
    15 March 20181.1M+5.7%297K3.54
    28 February 2018994K-3.9%295K3.36
    15 February 20181.0M-1.9%438K2.36
    31 January 20181.1M+22.5%330K3.20
    12 January 2018861K+7.5%286K3.01
    29 December 2017801K230K3.48
    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.