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HowShorted

How shorted is Standard BioTools Inc.? LAB

#3,382most shorted US stockof 3,805 ranked stocks, more shorted than 11%

0.66%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
−0.10
5 reports (~10 weeks)
−2.65
days to cover
1.44
Aggregate net short position time series for Standard BioTools 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 Standard BioTools 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
5 May 20263.03% 30 Apr 20263.31% 15 May 2026+0.28
24 Feb 20262.73% 13 Feb 20262.64% 27 Feb 2026−0.09
30 Jan 20262.65% 15 Jan 20262.73% 13 Feb 2026+0.08
8 Jan 20262.68% 31 Dec 20252.65% 15 Jan 2026−0.03
4 Nov 20253.02% 31 Oct 20253.08% 14 Nov 2025+0.06
11 Aug 20253.17% 31 Jul 20253.31% 15 Aug 2025+0.14
6 May 20254.87% 30 Apr 20254.62% 15 May 2025−0.25
26 Feb 20253.63% 14 Feb 20253.81% 28 Feb 2025+0.18

Fails to deliver

The SEC's fails-to-deliver figure for LAB: 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
228
11 Sep 2026
Highest in window
396,554
10 Apr 2026
Days with a balance
65
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Standard BioTools 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 397K shares.

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Sector: Healthcare

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 20260.66%−0.10
31 Aug 20260.76%+0.15
14 Aug 20260.61%−1.96
15 Jun 20262.57%−0.80
29 May 20263.37%+0.06
15 May 20263.31%+0.28
30 Apr 20263.03%+0.86
15 Apr 20262.17%−0.48
31 Mar 20262.65%+0.53
13 Mar 20262.12%−0.52
27 Feb 20262.64%−0.09
13 Feb 20262.73%+0.18
30 Jan 20262.55%−0.10
15 Jan 20262.65%−0.03
31 Dec 20252.68%−0.04
15 Dec 20252.72%−0.12
28 Nov 20252.84%−0.24
14 Nov 20253.08%+0.06
31 Oct 20253.02%−0.10
15 Oct 20253.12%−0.06
30 Sep 20253.18%+0.02
15 Sep 20253.16%−0.05
29 Aug 20253.21%−0.10
15 Aug 20253.31%+0.14
31 Jul 20253.17%−0.08
15 Jul 20253.25%−0.15
30 Jun 20253.40%−0.86
13 Jun 20254.26%−0.24
30 May 20254.50%−0.12
15 May 20254.62%−0.25
30 Apr 20254.87%+0.32
15 Apr 20254.55%−0.12
31 Mar 20254.67%+0.52
14 Mar 20254.15%+0.34
28 Feb 20253.81%+0.18
14 Feb 20253.63%+0.18
31 Jan 20253.45%−0.13
15 Jan 20253.58%−0.05
31 Dec 20243.63%+0.05
13 Dec 20243.58%−0.12
29 Nov 20243.70%−0.24
15 Nov 20243.94%−1.32
31 Oct 20245.26%−0.49
15 Oct 20245.75%+0.01
30 Sep 20245.74%−0.26
13 Sep 20246.00%+0.01
30 Aug 20245.99%+0.12
15 Aug 20245.87%+0.75
31 Jul 20245.12%−0.01
15 Jul 20245.13%+1.83
28 Jun 20243.30%−0.22
14 Jun 20243.52%+0.02
31 May 20243.50%+0.31
15 May 20243.19%+0.18
30 Apr 20243.01%+0.03
15 Apr 20242.98%−9.90
28 Mar 202412.88%+1.22
15 Mar 202411.66%+1.69
29 Feb 20249.97%−0.18
15 Feb 202410.15%+0.95
31 Jan 20249.20%−0.46
12 Jan 20249.66%+2.41
29 Dec 20237.25%+0.73
15 Dec 20236.52%+1.35
30 Nov 20235.17%+0.62
15 Nov 20234.55%+0.26
31 Oct 20234.29%−1.00
13 Oct 20235.29%+0.83
29 Sep 20234.46%+0.99
15 Sep 20233.47%+0.24
31 Aug 20233.23%−0.08
15 Aug 20233.31%+0.15
31 Jul 20233.16%−0.16
14 Jul 20233.32%−0.05
30 Jun 20233.37%−0.16
15 Jun 20233.53%+0.02
31 May 20233.51%−0.49
15 May 20234.00%−0.12
28 Apr 20234.12%+0.11
14 Apr 20234.01%+0.63
31 Mar 20233.38%+0.09
15 Mar 20233.29%−0.58
28 Feb 20233.87%+0.45
15 Feb 20233.42%−0.25
31 Jan 20233.67%−0.07
13 Jan 20233.74%−0.38
30 Dec 20224.12%−0.13
15 Dec 20224.25%+0.12
30 Nov 20224.13%−0.22
15 Nov 20224.35%+0.01
31 Oct 20224.34%−0.26
14 Oct 20224.60%+0.01
30 Sep 20224.59%−0.26
15 Sep 20224.85%+0.50
31 Aug 20224.35%−0.72
15 Aug 20225.07%−1.24
29 Jul 20226.31%+0.03
15 Jul 20226.28%−0.64
31 Mar 20226.92%−0.37
15 Mar 20227.29%−0.10
28 Feb 20227.39%+0.27
15 Feb 20227.12%+0.60
31 Jan 20226.52%−0.28
14 Jan 20226.80%−0.02
31 Dec 20216.82%−0.28
15 Dec 20217.10%+0.53
30 Nov 20216.57%+0.13
15 Nov 20216.44%−0.16
29 Oct 20216.60%−0.18
15 Oct 20216.78%−0.03
30 Sep 20216.81%−0.11
15 Sep 20216.92%−0.39
31 Aug 20217.31%−0.17
13 Aug 20217.48%−1.32
30 Jul 20218.80%−1.20
15 Jul 202110.00%+0.07
30 Jun 20219.93%−0.17
15 Jun 202110.10%−0.02
28 May 202110.12%+0.05
14 May 202110.07%−0.13
30 Apr 202110.20%−0.59
15 Apr 202110.79%−1.59
31 Mar 202112.38%−1.83
15 Mar 202114.21%−1.42
26 Feb 202115.63%+5.96
12 Feb 20219.67%+0.25
29 Jan 20219.42%+1.27
15 Jan 20218.15%−0.96
31 Dec 20209.11%+0.82
15 Dec 20208.29%−1.88
30 Nov 202010.17%−0.33
13 Nov 202010.50%−1.35
30 Oct 202011.85%+0.76
15 Oct 202011.09%−0.50
30 Sep 202011.59%−3.55
15 Sep 202015.14%−0.96
31 Aug 202016.10%+6.06
14 Aug 202010.04%+5.66
31 Jul 20204.38%−0.16
15 Jul 20204.54%+0.83
30 Jun 20203.71%+0.61
15 Jun 20203.10%+0.55
29 May 20202.55%+0.05
15 May 20202.50%−0.01
30 Apr 20202.51%−0.18
15 Apr 20202.69%+0.28
31 Mar 20202.41%+0.10
13 Mar 20202.31%−0.10
28 Feb 20202.41%−0.29
14 Feb 20202.70%−0.21
31 Jan 20202.91%−0.05
15 Jan 20202.96%+0.46
31 Dec 20192.50%−0.08
13 Dec 20192.58%+0.68
29 Nov 20191.90%−0.07
15 Nov 20191.97%−0.14
31 Oct 20192.11%−0.20
15 Oct 20192.31%−0.56
30 Sep 20192.87%−1.07
13 Sep 20193.94%+0.46
30 Aug 20193.48%−0.36
15 Aug 20193.84%−1.35
31 Jul 20195.19%−1.59
15 Jul 20196.78%+0.81
28 Jun 20195.97%+0.33
14 Jun 20195.64%+1.13
31 May 20194.51%+0.78
15 May 20193.73%+0.61
30 Apr 20193.12%+0.38
15 Apr 20192.74%+0.10
29 Mar 20192.64%+0.16
15 Mar 20192.48%−12.69
15 Feb 201915.17%−0.88
31 Jan 201916.05%−0.62
15 Jan 201916.67%+6.21
31 Dec 201810.46%+0.63
14 Dec 20189.83%−2.15
30 Nov 201811.98%+1.23
15 Nov 201810.75%−0.32
31 Oct 201811.07%−0.27
15 Oct 201811.34%−0.04
28 Sep 201811.38%+0.38
14 Sep 201811.00%−0.01
31 Aug 201811.01%+0.68
15 Aug 201810.33%−0.07
31 Jul 201810.40%−0.11
13 Jul 201810.51%+0.30
29 Jun 201810.21%+0.19
15 Jun 201810.02%+0.63
31 May 20189.39%+0.31
15 May 20189.08%+0.72
30 Apr 20188.36%+0.12
13 Apr 20188.24%+0.40
29 Mar 20187.84%+0.19
15 Mar 20187.65%+0.63
28 Feb 20187.02%+0.18
15 Feb 20186.84%−0.16
31 Jan 20187.00%0.00
12 Jan 20187.00%+0.07
29 Dec 20176.93%–

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

Frequently asked questions

How shorted is Standard BioTools Inc. right now?
0.66% of Standard BioTools Inc.'s (LAB) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 3,382nd 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 LAB'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 LAB's days to cover?
1.44 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.