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How shorted was Adverum Biotechnologies, Inc.? ADVM

Adverum Biotechnologies, Inc. left the US market in 2025. This page is a frozen archive of its reported short interest, ending 28 Nov 2025. The ticker ADVM no longer refers to this company and may since have been reassigned.
1.97%
of shares outstanding reported short · settlement date 28 Nov 2025
vs previous report
−1.71
5 reports (~10 weeks)
−2.47
days to cover
1.02
Aggregate net short position time series for Adverum Biotechnologies, 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 Adverum Biotechnologies, 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
12 Aug 20254.72% 31 Jul 20254.76% 15 Aug 2025+0.04
14 May 20257.10% 30 Apr 20257.59% 15 May 2025+0.49
15 Apr 20257.14% 31 Mar 20257.10% 30 Apr 2025−0.04
4 Nov 20247.71% 31 Oct 20247.34% 15 Nov 2024−0.37
9 Nov 20231.34% 31 Oct 20231.47% 15 Nov 2023+0.13
10 Aug 20230.94% 31 Jul 20231.04% 15 Aug 2023+0.10
11 May 20231.45% 28 Apr 20231.44% 15 May 2023−0.01
30 Mar 20231.59% 15 Mar 20231.53% 31 Mar 2023−0.06
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Sector: Healthcare

History

Full reported short interest history
Settlement dateShort %Change
28 Nov 20251.97%−1.71
14 Nov 20253.68%−1.00
31 Oct 20254.68%+0.51
15 Oct 20254.17%−0.67
30 Sep 20254.84%+0.40
15 Sep 20254.44%−0.22
29 Aug 20254.66%−0.10
15 Aug 20254.76%+0.04
31 Jul 20254.72%−0.23
15 Jul 20254.95%−0.61
30 Jun 20255.56%−3.26
13 Jun 20258.82%−0.48
30 May 20259.30%+1.71
15 May 20257.59%+0.49
30 Apr 20257.10%+0.28
15 Apr 20256.82%−0.32
31 Mar 20257.14%+0.02
14 Mar 20257.12%−0.06
28 Feb 20257.18%+0.47
14 Feb 20256.71%−0.14
31 Jan 20256.85%−0.29
15 Jan 20257.14%+0.28
31 Dec 20246.86%−0.17
13 Dec 20247.03%+0.51
29 Nov 20246.52%−0.82
15 Nov 20247.34%−0.37
31 Oct 20247.71%−0.45
15 Oct 20248.16%+1.04
30 Sep 20247.12%−0.72
13 Sep 20247.84%+0.05
30 Aug 20247.79%+0.60
15 Aug 20247.19%+4.07
15 Mar 20243.12%+1.91
31 Jan 20241.21%−0.43
12 Jan 20241.64%−0.03
29 Dec 20231.67%+0.11
15 Dec 20231.56%+0.08
30 Nov 20231.48%+0.01
15 Nov 20231.47%+0.13
31 Oct 20231.34%+0.06
13 Oct 20231.28%+0.17
29 Sep 20231.11%−0.22
15 Sep 20231.33%+0.23
31 Aug 20231.10%+0.06
15 Aug 20231.04%+0.10
31 Jul 20230.94%−0.15
14 Jul 20231.09%−0.24
30 Jun 20231.33%−0.23
15 Jun 20231.56%+0.09
31 May 20231.47%+0.03
15 May 20231.44%−0.01
28 Apr 20231.45%−0.06
14 Apr 20231.51%−0.02
31 Mar 20231.53%−0.06
15 Mar 20231.59%+0.02
28 Feb 20231.57%+0.01
15 Feb 20231.56%−0.02
31 Jan 20231.58%−0.21
13 Jan 20231.79%−0.17
30 Dec 20221.96%−0.19
15 Dec 20222.15%−0.29
30 Nov 20222.44%+0.01
15 Nov 20222.43%−0.16
31 Oct 20222.59%−0.07
14 Oct 20222.66%−0.02
30 Sep 20222.68%+0.20
15 Sep 20222.48%0.00
31 Aug 20222.48%−0.13
15 Aug 20222.61%−0.49
29 Jul 20223.10%−0.47
15 Jul 20223.57%−0.53
30 Jun 20224.10%−1.42
15 Jun 20225.52%−0.23
31 May 20225.75%+0.53
13 May 20225.22%+0.14
29 Apr 20225.08%+0.04
14 Apr 20225.04%+0.16
31 Mar 20224.88%+0.38
15 Mar 20224.50%+0.32
28 Feb 20224.18%+0.08
15 Feb 20224.10%−0.71
31 Jan 20224.81%−2.39
14 Jan 20227.20%+0.86
31 Dec 20216.34%+0.12
15 Dec 20216.22%−1.06
30 Nov 20217.28%+0.19
15 Nov 20217.09%−1.74
29 Oct 20218.83%+0.58
15 Oct 20218.25%+0.47
30 Sep 20217.78%−3.97
15 Sep 202111.75%−0.96
31 Aug 202112.71%+0.08
13 Aug 202112.63%+0.24
30 Jul 202112.39%+1.19
15 Jul 202111.20%−0.23
30 Jun 202111.43%+2.71
15 Jun 20218.72%−1.05
28 May 20219.77%−0.11
14 May 20219.88%−2.77
30 Apr 202112.65%+0.67
15 Apr 202111.98%+0.32
31 Mar 202111.66%+1.17
15 Mar 202110.49%+0.18
26 Feb 202110.31%+0.60
12 Feb 20219.71%−0.35
29 Jan 202110.06%−0.45
15 Jan 202110.51%−0.03
31 Dec 202010.54%−1.58
15 Dec 202012.12%−0.55
30 Nov 202012.67%−0.69
13 Nov 202013.36%−1.01
30 Oct 202014.37%−1.42
15 Oct 202015.79%+0.41
30 Sep 202015.38%+2.32
15 Sep 202013.06%+1.85
31 Aug 202011.21%−4.32
14 Aug 202015.53%+0.65
31 Jul 202014.88%+0.59
15 Jul 202014.29%+0.57
30 Jun 202013.72%−1.58
15 Jun 202015.30%+0.44
29 May 202014.86%+0.58
15 May 202014.28%+0.40
30 Apr 202013.88%−2.36
15 Apr 202016.24%+1.31
31 Mar 202014.93%+1.81
13 Mar 202013.12%+2.36
28 Feb 202010.76%−0.91
14 Feb 202011.67%−0.49
31 Jan 202012.16%+0.22
15 Jan 202011.94%+0.70
31 Dec 201911.24%−1.83
13 Dec 201913.07%−1.36
29 Nov 201914.43%+0.36
15 Nov 201914.07%+0.90
31 Oct 201913.17%+0.47
15 Oct 201912.70%–

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

Frequently asked questions

How shorted was Adverum Biotechnologies, Inc.?
Adverum Biotechnologies, Inc. left the US market in 2025. Its final reported figure was 1.97% of shares outstanding for settlement date 28 Nov 2025, 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 ADVM'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 ADVM's days to cover?
1.02 days for settlement date 28 Nov 2025: 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.