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HowShorted

How shorted is Acrivon Therapeutics, Inc.? ACRV

#2,562most shorted US stockof 3,805 ranked stocks, more shorted than 32%

2.81%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
+0.15
5 reports (~10 weeks)
−4.52
days to cover
4.94
Aggregate net short position time series for Acrivon Therapeutics, 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 Acrivon Therapeutics, 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 20263.50% 31 Jul 20262.88% 14 Aug 2026−0.62
13 May 20266.36% 30 Apr 20266.44% 15 May 2026+0.08
8 Jan 202616.88% 31 Dec 202523.83% 15 Jan 2026+6.95
13 Nov 20255.48% 31 Oct 202511.73% 14 Nov 2025+6.25
13 Aug 20252.22% 31 Jul 20252.25% 15 Aug 2025+0.03
14 May 20254.45% 30 Apr 20254.27% 15 May 2025−0.18
25 Mar 20252.35% 14 Mar 20252.83% 31 Mar 2025+0.48
13 Nov 20243.48% 31 Oct 20243.57% 15 Nov 2024+0.09

Fails to deliver

The SEC's fails-to-deliver figure for ACRV: 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
3,149
14 Aug 2026
Highest in window
409,323
9 Jan 2026
Days with a balance
65
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Acrivon Therapeutics, 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 409K shares.

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Sector: Healthcare · By year: 2023 · 2024 · 2025 · 2026

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 20262.81%+0.15
31 Aug 20262.66%−0.22
14 Aug 20262.88%−0.62
31 Jul 20263.50%−0.34
15 Jul 20263.84%−3.49
30 Jun 20267.33%+0.03
15 Jun 20267.30%+0.07
29 May 20267.23%+0.79
15 May 20266.44%+0.08
30 Apr 20266.36%+0.20
15 Apr 20266.16%+0.52
31 Mar 20265.64%−18.19
15 Jan 202623.83%+6.95
31 Dec 202516.88%+0.65
15 Dec 202516.23%+2.43
28 Nov 202513.80%+2.07
14 Nov 202511.73%+6.25
31 Oct 20255.48%+0.28
15 Oct 20255.20%+1.54
30 Sep 20253.66%−0.40
15 Sep 20254.06%+2.27
29 Aug 20251.79%−0.46
15 Aug 20252.25%+0.03
31 Jul 20252.22%+0.31
15 Jul 20251.91%−0.53
30 Jun 20252.44%−1.15
13 Jun 20253.59%+0.25
30 May 20253.34%−0.93
15 May 20254.27%−0.18
30 Apr 20254.45%+2.18
15 Apr 20252.27%−0.56
31 Mar 20252.83%+0.48
14 Mar 20252.35%−0.05
28 Feb 20252.40%−1.24
14 Feb 20253.64%+0.11
31 Jan 20253.53%−0.22
15 Jan 20253.75%−0.03
31 Dec 20243.78%+0.23
13 Dec 20243.55%−0.03
29 Nov 20243.58%+0.01
15 Nov 20243.57%+0.09
31 Oct 20243.48%−0.11
15 Oct 20243.59%−0.31
30 Sep 20243.90%−0.24
13 Sep 20244.14%+0.82
30 Aug 20243.32%+0.05
15 Aug 20243.27%−1.29
31 Jul 20244.56%−0.16
15 Jul 20244.72%−0.34
28 Jun 20245.06%+0.46
14 Jun 20244.60%+0.04
31 May 20244.56%−0.09
15 May 20244.65%−0.14
30 Apr 20244.79%+0.26
15 Apr 20244.53%+2.18
28 Mar 20242.35%+0.17
15 Mar 20242.18%+0.40
29 Feb 20241.78%+0.10
15 Feb 20241.68%+0.20
31 Jan 20241.48%0.00
12 Jan 20241.48%+0.05
29 Dec 20231.43%+0.11
15 Dec 20231.32%+0.04
30 Nov 20231.28%−0.03
15 Nov 20231.31%−0.08
31 Oct 20231.39%+0.01
13 Oct 20231.38%−0.06
29 Sep 20231.44%−0.02
15 Sep 20231.46%0.00
31 Aug 20231.46%−0.04
15 Aug 20231.50%−0.03
31 Jul 20231.53%−0.05
14 Jul 20231.58%−0.07
30 Jun 20231.65%+0.01
15 Jun 20231.64%−0.10
31 May 20231.74%−0.11
15 May 20231.85%−0.03
28 Apr 20231.88%+0.01
14 Apr 20231.87%−0.03
31 Mar 20231.90%+0.97
15 Mar 20230.93%+0.45
28 Feb 20230.48%+0.16
15 Feb 20230.32%+0.01
31 Jan 20230.31%−0.02
13 Jan 20230.33%–

Newest first. Scroll inside the table for earlier dates, back to 13 Jan 2023.

Frequently asked questions

How shorted is Acrivon Therapeutics, Inc. right now?
2.81% of Acrivon Therapeutics, Inc.'s (ACRV) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 2,562nd 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 ACRV'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 ACRV's days to cover?
4.94 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.