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How shorted was Surface Oncology, Inc.? SURF

Surface Oncology, Inc. left the US market in 2023. This page is a frozen archive of its reported short interest, ending 31 Aug 2023. The ticker SURF no longer refers to this company and may since have been reassigned.
0.36%
of shares outstanding reported short · settlement date 31 Aug 2023
vs previous report
+0.09
5 reports (~10 weeks)
−0.97
days to cover
1.00
Aggregate net short position time series for Surface Oncology, 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 Surface Oncology, 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
2 Aug 20230.39% 31 Jul 20230.27% 15 Aug 2023−0.12
4 May 20231.40% 28 Apr 20231.49% 15 May 2023+0.09
9 Mar 20231.39% 28 Feb 20231.64% 15 Mar 2023+0.25
2 Nov 20222.29% 31 Oct 20221.90% 15 Nov 2022−0.39
3 Aug 20223.60% 29 Jul 20222.56% 15 Aug 2022−1.04
9 May 20225.65% 29 Apr 20225.43% 13 May 2022−0.22
2 Mar 20224.52% 28 Feb 20223.92% 15 Mar 2022−0.60
4 Nov 20216.87% 29 Oct 20215.11% 15 Nov 2021−1.76
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Sector: Healthcare

History

Full reported short interest history
Settlement dateShort %Change
31 Aug 20230.36%+0.09
15 Aug 20230.27%−0.12
31 Jul 20230.39%−0.08
14 Jul 20230.47%−0.27
30 Jun 20230.74%−0.59
15 Jun 20231.33%−0.17
31 May 20231.50%+0.01
15 May 20231.49%+0.09
28 Apr 20231.40%+0.04
14 Apr 20231.36%−0.13
31 Mar 20231.49%−0.15
15 Mar 20231.64%+0.25
28 Feb 20231.39%+0.20
15 Feb 20231.19%+0.05
31 Jan 20231.14%−0.39
13 Jan 20231.53%+0.08
30 Dec 20221.45%−0.05
15 Dec 20221.50%−0.19
30 Nov 20221.69%−0.21
15 Nov 20221.90%−0.39
31 Oct 20222.29%−0.22
14 Oct 20222.51%−0.34
30 Sep 20222.85%+0.21
15 Sep 20222.64%+0.12
31 Aug 20222.52%−0.04
15 Aug 20222.56%−1.04
29 Jul 20223.60%−1.50
15 Jul 20225.10%+1.62
30 Jun 20223.48%−1.81
15 Jun 20225.29%−0.65
31 May 20225.94%+0.51
13 May 20225.43%−0.22
29 Apr 20225.65%+1.21
14 Apr 20224.44%+0.47
31 Mar 20223.97%+0.05
15 Mar 20223.92%−0.60
28 Feb 20224.52%−0.18
15 Feb 20224.70%−0.20
31 Jan 20224.90%+0.20
14 Jan 20224.70%+0.45
31 Dec 20214.25%−0.59
15 Dec 20214.84%−0.58
30 Nov 20215.42%+0.31
15 Nov 20215.11%−1.76
29 Oct 20216.87%−1.01
15 Oct 20217.88%−0.11
30 Sep 20217.99%+0.06
15 Sep 20217.93%+0.14
31 Aug 20217.79%−0.47
13 Aug 20218.26%−0.83
30 Jul 20219.09%−2.40
15 Jul 202111.49%+1.29
30 Jun 202110.20%−0.63
15 Jun 202110.83%−0.80
28 May 202111.63%+0.53
14 May 202111.10%+0.47
30 Apr 202110.63%−0.79
15 Apr 202111.42%+4.07
31 Mar 20217.35%+0.53
15 Mar 20216.82%+0.73
26 Feb 20216.09%+2.09
12 Feb 20214.00%−0.25
29 Jan 20214.25%+0.32
15 Jan 20213.93%−1.35
31 Dec 20205.28%+1.55
15 Dec 20203.73%+1.85
30 Nov 20201.88%−0.57
13 Nov 20202.45%−0.13
30 Oct 20202.58%+0.93
15 Oct 20201.65%+0.23
30 Sep 20201.42%+0.10
15 Sep 20201.32%−0.05
31 Aug 20201.37%−0.42
14 Aug 20201.79%+1.44
15 May 20200.35%0.00
30 Apr 20200.35%−0.13
15 Apr 20200.48%−0.11
31 Mar 20200.59%+0.15
13 Mar 20200.44%+0.12
28 Feb 20200.32%+0.01
14 Feb 20200.31%−0.15
31 Jan 20200.46%+0.22
15 Jan 20200.24%−0.09
31 Dec 20190.33%−0.33
13 Dec 20190.66%−0.11
29 Nov 20190.77%+0.13
15 Nov 20190.64%−0.04
31 Oct 20190.68%+0.11
15 Oct 20190.57%–

Newest first. Scroll inside the table for earlier dates, back to 15 Oct 2019.

Frequently asked questions

How shorted was Surface Oncology, Inc.?
Surface Oncology, Inc. left the US market in 2023. Its final reported figure was 0.36% of shares outstanding for settlement date 31 Aug 2023, 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 SURF'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 SURF's days to cover?
1.00 days for settlement date 31 Aug 2023: 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.