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HowShorted

How shorted was GenMark Diagnostics, Inc.? GNMK

GenMark Diagnostics, Inc. left the US market in 2021. This page is a frozen archive of its reported short interest, ending 15 Apr 2021. The ticker GNMK no longer refers to this company and may since have been reassigned.
4.79%
of shares outstanding reported short · settlement date 15 Apr 2021
vs previous report
−2.81
5 reports (~10 weeks)
−4.75
days to cover
1.54
Aggregate net short position time series for GenMark Diagnostics, 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 GenMark Diagnostics, 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
25 Feb 20219.86% 12 Feb 20215.79% 26 Feb 2021−4.07
11 Jan 20219.88% 31 Dec 202010.08% 15 Jan 2021+0.20
28 Oct 202010.43% 15 Oct 202011.33% 30 Oct 2020+0.90
8 Oct 20209.87% 30 Sep 202010.43% 15 Oct 2020+0.56
4 Aug 20208.26% 31 Jul 20208.40% 14 Aug 2020+0.14
7 Jul 202011.50% 30 Jun 202010.12% 15 Jul 2020−1.38
4 May 20206.46% 30 Apr 20204.68% 15 May 2020−1.78
7 Apr 20204.16% 31 Mar 20204.98% 15 Apr 2020+0.82
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Sector: Healthcare

History

Full reported short interest history
Settlement dateShort %Change
15 Apr 20214.79%−2.81
31 Mar 20217.60%+2.43
15 Mar 20215.17%−0.62
26 Feb 20215.79%−4.07
12 Feb 20219.86%+0.32
29 Jan 20219.54%−0.54
15 Jan 202110.08%+0.20
31 Dec 20209.88%+0.31
15 Dec 20209.57%−0.79
30 Nov 202010.36%−0.14
13 Nov 202010.50%−0.83
30 Oct 202011.33%+0.90
15 Oct 202010.43%+0.56
30 Sep 20209.87%−0.42
15 Sep 202010.29%+0.70
31 Aug 20209.59%+1.19
14 Aug 20208.40%+0.14
31 Jul 20208.26%−1.86
15 Jul 202010.12%−1.38
30 Jun 202011.50%+2.61
15 Jun 20208.89%+1.88
29 May 20207.01%+2.33
15 May 20204.68%−1.78
30 Apr 20206.46%+1.48
15 Apr 20204.98%+0.82
31 Mar 20204.16%−0.59
13 Mar 20204.75%+1.43
28 Feb 20203.32%−0.07
14 Feb 20203.39%+0.27
31 Jan 20203.12%+0.07
15 Jan 20203.05%−0.19
31 Dec 20193.24%+0.35
13 Dec 20192.89%+0.12
29 Nov 20192.77%−0.26
15 Nov 20193.03%−0.49
31 Oct 20193.52%−0.77
15 Oct 20194.29%+0.08
30 Sep 20194.21%−0.01
13 Sep 20194.22%−0.03
30 Aug 20194.25%+0.03
15 Aug 20194.22%+0.20
31 Jul 20194.02%0.00
15 Jul 20194.02%+0.48
28 Jun 20193.54%+0.33
14 Jun 20193.21%+0.49
31 May 20192.72%+0.06
15 May 20192.66%−0.72
30 Apr 20193.38%−0.80
15 Apr 20194.18%+0.09
29 Mar 20194.09%−0.27
15 Mar 20194.36%+0.78
28 Feb 20193.58%−0.55
15 Feb 20194.13%−0.62
31 Jan 20194.75%−0.88
15 Jan 20195.63%−0.97
31 Dec 20186.60%−1.05
14 Dec 20187.65%+0.04
30 Nov 20187.61%+0.13
15 Nov 20187.48%−0.47
31 Oct 20187.95%−0.21
15 Oct 20188.16%−0.52
28 Sep 20188.68%−0.29
14 Sep 20188.97%−0.37
31 Aug 20189.34%−0.55
15 Aug 20189.89%−0.23
31 Jul 201810.12%−0.56
13 Jul 201810.68%−0.36
29 Jun 201811.04%−0.44
15 Jun 201811.48%−0.35
31 May 201811.83%−0.45
15 May 201812.28%−0.53
30 Apr 201812.81%−0.58
13 Apr 201813.39%+0.28
29 Mar 201813.11%−0.19
15 Mar 201813.30%−0.55
28 Feb 201813.85%−1.12
15 Feb 201814.97%+0.26
31 Jan 201814.71%−0.18
12 Jan 201814.89%+1.00
29 Dec 201713.89%–

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

Frequently asked questions

How shorted was GenMark Diagnostics, Inc.?
GenMark Diagnostics, Inc. left the US market in 2021. Its final reported figure was 4.79% of shares outstanding for settlement date 15 Apr 2021, per FINRA's consolidated short interest report; this page preserves its full history.
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 GNMK'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 GNMK's days to cover?
1.54 days for settlement date 15 Apr 2021: 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.