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Stock research / United States / CDXS / Short interest

Codexis, Inc. short interest

5.0M shares of Codexis were sold short at the 15 October 2026 settlement, the most since 15 Apr 2026. Short sellers would need 6.3 days of normal trading to buy them back.

Shares sold short5.0Mat 15 Oct 2026
Change on the settlement before+2.4%+4% over a year
Days to cover6.31at 785K shares a day
Of shares in issue5.42%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 the most since 15 Apr 2026, and the share price moved -56% 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 20265.0M+2.4%785K6.31
    30 September 20264.8M+20.2%968K5.00
    15 September 20264.0M+4.6%701K5.74
    31 August 20263.8M+3.3%1.1M3.56
    14 August 20263.7M-5.1%1.1M3.33
    31 July 20263.9M+4.7%1.9M2.06
    15 July 20263.7M+16.0%749K5.01
    30 June 20263.2M-0.8%1.1M3.04
    15 June 20263.3M-16.0%749K4.35
    29 May 20263.9M+4.8%769K5.04
    15 May 20263.7M-20.9%1.2M2.98
    30 April 20264.7M-25.5%1.3M3.66
    15 April 20266.3M-9.5%1.6M3.88
    31 March 20266.9M-35.6%1.6M4.28
    13 March 202610.8M+17.5%7.2M1.50
    27 February 20269.2M+26.2%1.1M8.55
    13 February 20267.3M+12.6%1.3M5.59
    30 January 20266.4M+8.7%1.2M5.54
    15 January 20265.9M+2.2%573K10.34
    31 December 20255.8M-0.2%1.2M4.67
    15 December 20255.8M-4.1%1.1M5.44
    28 November 20256.1M+23.7%972K6.24
    14 November 20254.9M+7.7%1.9M2.57
    31 October 20254.6M-4.2%616K7.40
    15 October 20254.8M-6.5%570K8.34
    30 September 20255.1M-9.8%567K8.97
    15 September 20255.6M+12.7%817K6.90
    29 August 20255.0M-3.7%1.4M3.70
    15 August 20255.2M-6.9%1.2M4.27
    31 July 20255.6M-2.2%796K7.00
    15 July 20255.7M-19.7%942K6.05
    30 June 20257.1M+11.7%954K7.44
    13 June 20256.4M+17.4%671K9.48
    30 May 20255.4M-5.5%1.3M4.03
    15 May 20255.7M+0.8%638K8.98
    30 April 20255.7M+6.2%453K12.56
    15 April 20255.4M+4.9%1.2M4.65
    31 March 20255.1M+11.8%977K5.23
    14 March 20254.6M+50.8%1.3M3.50
    28 February 20253.0M-0.8%802K3.78
    14 February 20253.1M+3.3%483K6.33
    31 January 20253.0M+24.1%699K4.23
    15 January 20252.4M+3.8%671K3.55
    31 December 20242.3M+20.7%885K2.59
    13 December 20241.9M+10.6%818K2.32
    29 November 20241.7M+2.3%586K2.93
    15 November 20241.7M-13.9%814K2.07
    31 October 20242.0M-2.4%402K4.85
    15 October 20242.0M-11.3%375K5.34
    30 September 20242.3M+4.2%1.6M1.45
    13 September 20242.2M-5.8%233K9.31
    30 August 20242.3M+17.4%260K8.84
    15 August 20242.0M-3.6%430K4.56
    31 July 20242.0M-8.1%471K4.32
    15 July 20242.2M+5.2%344K6.43
    28 June 20242.1M-5.7%514K4.09
    14 June 20242.2M+10.0%329K6.77
    31 May 20242.0M-11.7%376K5.39
    15 May 20242.3M-4.3%639K3.59
    30 April 20242.4M+1.0%362K6.62
    15 April 20242.4M-0.4%346K6.87
    28 March 20242.4M+4.1%505K4.72
    15 March 20242.3M-10.0%722K3.17
    29 February 20242.5M+1.0%1.1M2.41
    15 February 20242.5M+0.2%499K5.05
    31 January 20242.5M+1.4%441K5.70
    12 January 20242.5M-4.0%523K4.74
    29 December 20232.6M-13.5%825K3.13
    15 December 20233.0M+2.2%1.3M2.22
    30 November 20232.9M-6.0%694K4.21
    15 November 20233.1M+12.3%748K4.15
    31 October 20232.8M+9.8%624K4.43
    13 October 20232.5M+7.1%728K3.46
    29 September 20232.4M-2.2%965K2.44
    15 September 20232.4M+2.0%1.4M1.78
    31 August 20232.4M-16.8%1.0M2.27
    15 August 20232.8M+2.8%1.2M2.29
    31 July 20232.8M-6.4%979K2.81
    14 July 20232.9M-8.3%925K3.18
    30 June 20233.2M+2.1%945K3.39
    15 June 20233.1M-19.9%1.2M2.70
    31 May 20233.9M+1.1%1.1M3.66
    15 May 20233.9M-1.5%953K4.07
    28 April 20233.9M-9.4%553K7.12
    14 April 20234.3M-11.1%744K5.84
    31 March 20234.9M+0.0%515K9.49
    15 March 20234.9M-1.7%636K7.68
    28 February 20235.0M+4.2%743K6.69
    15 February 20234.8M-0.3%449K10.62
    31 January 20234.8M-5.7%655K7.31
    13 January 20235.1M-7.0%895K5.66
    30 December 20225.5M-0.6%778K7.01
    15 December 20225.5M+1.5%555K9.88
    30 November 20225.4M+7.7%1.4M3.92
    15 November 20225.0M-2.4%725K6.91
    31 October 20225.1M-3.6%718K7.16
    14 October 20225.3M+0.5%849K6.28
    30 September 20225.3M-3.6%766K6.92
    15 September 20225.5M-0.1%553K9.93
    31 August 20225.5M+1.8%614K8.96
    15 August 20225.4M+2.1%1.1M4.90
    29 July 20225.3M-4.4%1.5M3.51
    15 July 20225.5M+1.7%1.8M3.04
    30 June 20225.4M+3.9%902K6.03
    15 June 20225.2M-7.1%708K7.39
    31 May 20225.6M+6.2%895K6.30
    13 May 20225.3M+6.5%1.1M4.73
    29 April 20225.0M+6.8%1.1M4.72
    14 April 20224.7M-2.9%582K8.02
    31 March 20224.8M-4.2%497K9.68
    15 March 20225.0M-4.3%721K6.96
    28 February 20225.2M+2.8%876K5.99
    15 February 20225.1M-43.0%1.3M3.85
    31 January 20229.0M+0.0%842K10.64
    14 January 20229.0M-1.7%533K16.80
    31 December 20219.1M+10.0%632K14.43
    15 December 20218.3M+11.8%764K10.84
    30 November 20217.4M+14.6%753K9.84
    15 November 20216.5M+0.3%899K7.19
    29 October 20216.4M-0.7%774K8.32
    15 October 20216.5M-2.1%1.5M4.25
    30 September 20216.6M-0.8%298K22.21
    15 September 20216.7M-0.6%285K23.42
    31 August 20216.7M-3.3%308K21.83
    13 August 20216.9M+2.0%406K17.11
    30 July 20216.8M+2.0%282K24.19
    15 July 20216.7M-5.5%322K20.76
    30 June 20217.1M+0.8%504K14.04
    15 June 20217.0M-0.8%370K18.94
    28 May 20217.1M+0.9%323K21.90
    14 May 20217.0M+10.0%582K12.05
    30 April 20216.4M+1.7%281K22.64
    15 April 20216.3M+5.7%597K10.50
    31 March 20215.9M+1.6%610K9.73
    15 March 20215.8M+11.3%747K7.80
    26 February 20215.2M+11.1%593K8.83
    12 February 20214.7M-6.1%722K6.53
    29 January 20215.0M-9.4%640K7.85
    15 January 20215.5M-8.0%599K9.26
    31 December 20206.0M+30.4%898K6.71
    15 December 20204.6M-5.9%639K7.23
    30 November 20204.9M+2.8%273K17.95
    13 November 20204.8M+10.8%309K15.44
    30 October 20204.3M-6.5%219K19.70
    15 October 20204.6M-3.7%337K13.67
    30 September 20204.8M+3.8%297K16.13
    15 September 20204.6M-2.1%226K20.44
    31 August 20204.7M-5.2%212K22.18
    14 August 20205.0M+8.7%298K16.69
    31 July 20204.6M-10.3%230K19.91
    15 July 20205.1M-1.1%390K13.07
    30 June 20205.2M+5.4%381K13.53
    15 June 20204.9M-0.7%405K12.09
    29 May 20204.9M+1.7%522K9.44
    15 May 20204.8M-4.3%373K13.00
    30 April 20205.1M-1.8%289K17.52
    15 April 20205.2M-0.4%291K17.70
    31 March 20205.2M-7.9%421K12.31
    13 March 20205.6M+5.4%453K12.41
    28 February 20205.3M+1.4%467K11.42
    14 February 20205.3M-3.2%390K13.47
    31 January 20205.4M+0.4%307K17.67
    15 January 20205.4M+8.3%362K14.93
    31 December 20195.0M-2.5%294K17.01
    13 December 20195.1M+1.3%262K19.53
    29 November 20195.1M+0.4%303K16.69
    15 November 20195.0M-5.3%355K14.20
    31 October 20195.3M-1.1%256K20.78
    15 October 20195.4M+6.9%330K16.27
    30 September 20195.0M+7.6%399K12.60
    13 September 20194.7M+5.6%666K7.02
    30 August 20194.4M+1.8%594K7.45
    15 August 20194.3M+12.2%593K7.32
    31 July 20193.9M-4.6%248K15.62
    15 July 20194.1M+2.4%418K9.72
    28 June 20194.0M+2.0%419K9.46
    14 June 20193.9M+1.0%421K9.23
    31 May 20193.8M+8.0%298K12.90
    15 May 20193.6M-3.0%339K10.52
    30 April 20193.7M-5.0%263K13.94
    15 April 20193.9M+3.9%269K14.38
    29 March 20193.7M+0.7%259K14.35
    15 March 20193.7M-0.5%484K7.64
    28 February 20193.7M+0.6%514K7.21
    15 February 20193.7M+3.5%711K5.19
    31 January 20193.6M+4.2%355K10.04
    15 January 20193.4M+1.8%347K9.87
    31 December 20183.4M-2.6%509K6.60
    14 December 20183.5M-11.1%518K6.66
    30 November 20183.9M+7.1%392K9.89
    15 November 20183.6M+2.9%289K12.54
    31 October 20183.5M-4.1%270K13.04
    15 October 20183.7M+25.8%584K6.29
    28 September 20182.9M+21.5%495K5.91
    14 September 20182.4M+1.1%321K7.48
    31 August 20182.4M-3.2%378K6.29
    15 August 20182.5M-2.2%283K8.66
    31 July 20182.5M-6.4%297K8.45
    13 July 20182.7M-0.6%247K10.87
    29 June 20182.7M+24.3%579K4.66
    15 June 20182.2M+0.9%374K5.80
    31 May 20182.2M+0.2%384K5.60
    15 May 20182.1M+9.4%327K6.57
    30 April 20182.0M+18.4%283K6.93
    13 April 20181.7M-21.4%594K2.79
    29 March 20182.1M-2.1%346K6.08
    15 March 20182.2M-13.1%679K3.17
    28 February 20182.5M-0.5%247K10.01
    15 February 20182.5M-5.8%217K11.45
    31 January 20182.6M+5.1%219K12.06
    12 January 20182.5M+8.9%341K7.37
    29 December 20172.3M256K9.01
    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.