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HowShorted

How shorted is Codexis, Inc.? CDXS

#2,179most shorted US stockof 3,805 ranked stocks, more shorted than 42%

3.68%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
+0.17
5 reports (~10 weeks)
+0.13
days to cover
5.74
Aggregate net short position time series for Codexis, Inc.

Markers along the chart's base: ▲ results announced (an 8-K reporting results was filed) ▲ quarterly or annual report filed. Dates are SEC filing dates; hover a point to see events since the previous settlement.

Days to cover

FINRA's own figure: reported shares short divided by the stock's average daily trading volume, published alongside each settlement. It expresses the short position in days of typical trading rather than as a percentage of the company; the two can move differently.

Aggregate net short position time series for Codexis, Inc. days to cover

Short interest around results

For each results announcement (an 8-K reporting results, by its SEC filing date), the FINRA settlement before it and the first one after. Settlements fall twice a month, so the two figures can sit up to a month apart and much else changes in between: this shows what was reported, not why.

Reported short interest before and after each results announcement
Results filedSettlement beforeSettlement afterChange
11 Aug 20264.32% 31 Jul 20263.40% 14 Aug 2026−0.92
23 Jul 20264.13% 15 Jul 20264.32% 31 Jul 2026+0.19
7 May 20265.14% 30 Apr 20264.07% 15 May 2026−1.07
11 Mar 202610.14% 27 Feb 202611.85% 13 Mar 2026+1.71
6 Nov 20255.04% 31 Oct 20255.43% 14 Nov 2025+0.39
13 Aug 20256.73% 31 Jul 20255.75% 15 Aug 2025−0.98
14 May 20256.86% 30 Apr 20256.92% 15 May 2025+0.06
27 Feb 20253.75% 14 Feb 20253.66% 28 Feb 2025−0.09

Fails to deliver

The SEC's fails-to-deliver figure for CDXS: the aggregate net balance of shares that failed to be delivered at each settlement date, published by the SEC twice a month and shown here verbatim for the trailing window. A balance is not a daily flow, and a fail has many ordinary causes; the SEC says it cannot guarantee the accuracy of the data. See what fails to deliver are and the largest balances today.

Last balance on file
268
12 Aug 2026
Highest in window
581,232
13 Mar 2026
Days with a balance
70
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Codexis, Inc. fails to deliver

Source: U.S. Securities and Exchange Commission, fails-to-deliver data (public domain). Only settlement days with a positive balance appear; the largest balance in the window was 581K shares.

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Sector: Materials

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 20263.68%+0.17
31 Aug 20263.51%+0.11
14 Aug 20263.40%−0.92
31 Jul 20264.32%+0.19
15 Jul 20264.13%+0.58
30 Jun 20263.55%−0.03
15 Jun 20263.58%−0.69
29 May 20264.27%+0.20
15 May 20264.07%−1.07
30 Apr 20265.14%−1.77
15 Apr 20266.91%−0.73
31 Mar 20267.64%−4.21
13 Mar 202611.85%+1.71
27 Feb 202610.14%+2.10
13 Feb 20268.04%+0.90
30 Jan 20267.14%+0.57
15 Jan 20266.57%+0.14
31 Dec 20256.43%−0.01
15 Dec 20256.44%−0.28
28 Nov 20256.72%+1.29
14 Nov 20255.43%+0.39
31 Oct 20255.04%−0.23
15 Oct 20255.27%−0.36
30 Sep 20255.63%−0.61
15 Sep 20256.24%+0.70
29 Aug 20255.54%−0.21
15 Aug 20255.75%−0.98
31 Jul 20256.73%−0.15
15 Jul 20256.88%−1.69
30 Jun 20258.57%+0.90
13 Jun 20257.67%+1.13
30 May 20256.54%−0.38
15 May 20256.92%+0.06
30 Apr 20256.86%+0.39
15 Apr 20256.47%+0.31
31 Mar 20256.16%+0.65
14 Mar 20255.51%+1.85
28 Feb 20253.66%−0.09
14 Feb 20253.75%+0.12
31 Jan 20253.63%+0.70
15 Jan 20252.93%+0.11
31 Dec 20242.82%+0.48
13 Dec 20242.34%+0.23
29 Nov 20242.11%+0.04
15 Nov 20242.07%−0.33
31 Oct 20242.40%−0.42
15 Oct 20242.82%−0.36
30 Sep 20243.18%+0.13
13 Sep 20243.05%−0.19
30 Aug 20243.24%+0.48
15 Aug 20242.76%−0.12
31 Jul 20242.88%−0.25
15 Jul 20243.13%+0.15
28 Jun 20242.98%−0.18
14 Jun 20243.16%+0.29
31 May 20242.87%−0.39
15 May 20243.26%−0.14
30 Apr 20243.40%0.00
15 Apr 20243.40%−0.01
28 Mar 20243.41%+0.13
15 Mar 20243.28%−0.36
29 Feb 20243.64%+0.03
15 Feb 20243.61%+0.01
31 Jan 20243.60%+0.05
12 Jan 20243.55%−0.15
29 Dec 20233.70%−0.58
15 Dec 20234.28%+0.10
30 Nov 20234.18%−0.27
15 Nov 20234.45%+0.49
31 Oct 20233.96%+0.35
13 Oct 20233.61%+0.24
29 Sep 20233.37%−0.07
15 Sep 20233.44%+0.06
31 Aug 20233.38%−0.68
15 Aug 20234.06%+0.12
31 Jul 20233.94%−0.46
14 Jul 20234.40%−0.40
30 Jun 20234.80%+0.10
15 Jun 20234.70%−1.17
31 May 20235.87%+0.06
15 May 20235.81%−0.19
28 Apr 20236.00%−0.62
14 Apr 20236.62%−0.82
31 Mar 20237.44%0.00
15 Mar 20237.44%−0.13
28 Feb 20237.57%+0.31
15 Feb 20237.26%−0.02
31 Jan 20237.28%−0.44
13 Jan 20237.72%−0.58
30 Dec 20228.30%−0.05
15 Dec 20228.35%+0.13
30 Nov 20228.22%+0.59
15 Nov 20227.63%−0.22
31 Oct 20227.85%−0.29
14 Oct 20228.14%+0.05
30 Sep 20228.09%−0.30
15 Sep 20228.39%−0.01
31 Aug 20228.40%+0.15
15 Aug 20228.25%+0.14
29 Jul 20228.11%−0.36
15 Jul 20228.47%+0.14
30 Jun 20228.33%+0.31
15 Jun 20228.02%−0.61
31 May 20228.63%+0.50
13 May 20228.13%+0.44
29 Apr 20227.69%+0.49
14 Apr 20227.20%−0.21
31 Mar 20227.41%−0.33
15 Mar 20227.74%−0.35
28 Feb 20228.09%+0.22
15 Feb 20227.87%−5.94
31 Jan 202213.81%0.00
14 Jan 202213.81%−0.24
31 Dec 202114.05%+1.29
15 Dec 202112.76%+1.34
30 Nov 202111.42%+1.46
15 Nov 20219.96%−0.01
29 Oct 20219.97%−0.07
15 Oct 202110.04%−0.21
30 Sep 202110.25%−0.08
15 Sep 202110.33%−0.06
31 Aug 202110.39%−0.36
13 Aug 202110.75%+0.19
30 Jul 202110.56%+0.20
15 Jul 202110.36%−0.60
30 Jun 202110.96%+0.08
15 Jun 202110.88%−0.09
28 May 202110.97%+0.10
14 May 202110.87%+0.99
30 Apr 20219.88%−0.69
15 Apr 202110.57%+0.57
31 Mar 202110.00%+0.16
15 Mar 20219.84%+1.00
26 Feb 20218.84%+0.88
12 Feb 20217.96%−0.51
29 Jan 20218.47%−0.88
15 Jan 20219.35%−0.81
31 Dec 202010.16%+2.37
15 Dec 20207.79%−0.49
30 Nov 20208.28%+0.23
13 Nov 20208.05%+0.78
30 Oct 20207.27%−0.52
15 Oct 20207.79%−0.30
30 Sep 20208.09%+0.29
15 Sep 20207.80%−0.17
31 Aug 20207.97%−0.44
14 Aug 20208.41%+0.68
31 Jul 20207.73%−0.91
15 Jul 20208.64%−0.10
30 Jun 20208.74%+0.45
15 Jun 20208.29%−0.06
29 May 20208.35%+0.14
15 May 20208.21%−0.37
30 Apr 20208.58%−0.23
15 Apr 20208.81%−0.04
31 Mar 20208.85%−0.76
13 Mar 20209.61%+0.49
28 Feb 20209.12%+0.13
14 Feb 20208.99%−0.29
31 Jan 20209.28%+0.04
15 Jan 20209.24%+0.71
31 Dec 20198.53%−0.22
13 Dec 20198.75%+0.11
29 Nov 20198.64%+0.04
15 Nov 20198.60%−0.48
31 Oct 20199.08%−0.13
15 Oct 20199.21%+0.59
30 Sep 20198.62%+0.61
13 Sep 20198.01%+0.43
30 Aug 20197.58%+0.13
15 Aug 20197.45%+0.82
31 Jul 20196.63%−0.81
15 Jul 20197.44%+0.17
28 Jun 20197.27%+0.15
14 Jun 20197.12%+0.06
31 May 20197.06%+0.53
15 May 20196.53%−0.20
30 Apr 20196.73%−0.43
15 Apr 20197.16%+0.27
29 Mar 20196.89%+0.05
15 Mar 20196.84%−0.03
28 Feb 20196.87%+0.04
15 Feb 20196.83%+0.23
31 Jan 20196.60%+0.26
15 Jan 20196.34%+0.11
31 Dec 20186.23%−0.16
14 Dec 20186.39%−0.80
30 Nov 20187.19%+0.48
15 Nov 20186.71%+0.19
31 Oct 20186.52%−0.35
15 Oct 20186.87%+1.41
28 Sep 20185.46%+0.97
14 Sep 20184.49%+0.05
31 Aug 20184.44%−0.15
15 Aug 20184.59%−0.10
31 Jul 20184.69%−0.35
13 Jul 20185.04%−0.02
29 Jun 20185.06%+0.99
15 Jun 20184.07%+0.03
31 May 20184.04%+0.01
15 May 20184.03%+0.35
30 Apr 20183.68%+0.25
13 Apr 20183.43%−0.93
29 Mar 20184.36%−0.09
15 Mar 20184.45%−0.67
28 Feb 20185.12%−0.03
15 Feb 20185.15%−0.32
31 Jan 20185.47%+0.27
12 Jan 20185.20%+0.42
29 Dec 20174.78%–

Newest first. Scroll inside the table for earlier dates, back to 29 Dec 2017.

Frequently asked questions

How shorted is Codexis, Inc. right now?
3.68% of Codexis, Inc.'s (CDXS) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 2,179th most shorted US stock, out of 3,805 we rank.
What does this number include?
FINRA member firms must report their short positions in all US equities twice a month; FINRA consolidates them per security. We divide that official share count by the company's shares outstanding from its SEC filings. This is the regulatory figure, not a daily estimate.
Why does it only update twice a month?
US short interest is reported for settlement on the 15th and the last business day of each month, and FINRA publishes the consolidated figures about nine business days later. That cadence is set by regulation; no daily official figure exists.
Is this CDXS's short float?
No. This is short interest as a percentage of shares outstanding, the count in the company's SEC filings. "Short float" divides the same FINRA short count by the public float, which excludes closely held shares, so it comes out higher for the same company. We publish no float estimates: the float is not a regulatory figure.
What is CDXS's days to cover?
5.74 days for settlement date 15 Sep 2026: FINRA's own short interest ratio, the reported shares short divided by average daily trading volume. It is published in the same FINRA file and shown verbatim; we hold no volume data ourselves.
Which funds are short?
US public short interest is aggregate-only: individual short sellers are not named. Only some EU markets publish named positions.