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HowShorted

How shorted is Aterian, Inc.? ATER

1.20%
of shares outstanding reported short · settlement date 31 Aug 2026
vs previous report
−0.38
5 reports (~10 weeks)
−0.35
days to cover
1.55
Aggregate net short position time series for Aterian, 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 Aterian, 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
13 Nov 20251.37% 31 Oct 20251.49% 14 Nov 2025+0.12
13 Aug 20251.62% 31 Jul 20251.54% 15 Aug 2025−0.08
14 May 20254.41% 30 Apr 20254.30% 15 May 2025−0.11
18 Mar 20252.26% 14 Mar 20253.18% 31 Mar 2025+0.92
20 Feb 20252.87% 14 Feb 20252.74% 28 Feb 2025−0.13
12 Nov 20243.08% 31 Oct 20242.95% 15 Nov 2024−0.13
12 Mar 20244.53% 29 Feb 20244.55% 15 Mar 2024+0.02
14 Feb 20244.90% 31 Jan 20245.36% 15 Feb 2024+0.46

Fails to deliver

The SEC's fails-to-deliver figure for ATER: 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.

Latest balance
694
14 Sep 2026
Highest in window
1,241,370
29 Apr 2026
Days with a balance
55
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Aterian, 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 1.2M shares.

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Sector: Consumer goods · By year: 2019 · 2020 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026

History

Full reported short interest history
Settlement dateShort %Change
31 Aug 20261.20%−0.38
14 Aug 20261.58%−1.78
31 Jul 20263.36%+1.87
15 Apr 20261.49%−0.95
31 Mar 20262.44%+0.89
13 Mar 20261.55%−0.27
27 Feb 20261.82%+0.36
13 Feb 20261.46%−1.44
30 Jan 20262.90%+1.42
15 Jan 20261.48%−1.40
31 Dec 20252.88%+1.25
15 Dec 20251.63%+0.21
28 Nov 20251.42%−0.07
14 Nov 20251.49%+0.12
31 Oct 20251.37%−0.04
15 Oct 20251.41%+0.13
30 Sep 20251.28%−0.27
15 Sep 20251.55%+0.32
29 Aug 20251.23%−0.31
15 Aug 20251.54%−0.08
31 Jul 20251.62%−0.33
15 Jul 20251.95%−0.59
30 Jun 20252.54%−0.05
13 Jun 20252.59%−0.12
30 May 20252.71%−1.59
15 May 20254.30%−0.11
30 Apr 20254.41%+1.03
15 Apr 20253.38%+0.20
31 Mar 20253.18%+0.92
14 Mar 20252.26%−0.48
28 Feb 20252.74%−0.13
14 Feb 20252.87%+0.58
31 Jan 20252.29%−0.29
15 Jan 20252.58%−0.20
31 Dec 20242.78%−0.29
13 Dec 20243.07%−0.20
29 Nov 20243.27%+0.32
15 Nov 20242.95%−0.13
31 Oct 20243.08%−0.24
15 Oct 20243.32%+0.26
30 Sep 20243.06%−0.31
13 Sep 20243.37%−0.13
30 Aug 20243.50%−0.77
15 Aug 20244.27%−0.28
15 Mar 20244.55%+0.02
29 Feb 20244.53%−0.83
15 Feb 20245.36%+0.46
31 Jan 20244.90%−0.35
12 Jan 20245.25%−0.40
29 Dec 20235.65%+0.59
15 Dec 20235.06%−0.81
30 Nov 20235.87%+0.83
15 Nov 20235.04%−1.73
31 Oct 20236.77%−0.26
13 Oct 20237.03%+0.30
29 Sep 20236.73%−0.32
15 Sep 20237.05%−0.09
31 Aug 20237.14%−1.81
15 Aug 20238.95%+1.74
31 Jul 20237.21%−0.03
14 Jul 20237.24%+0.13
30 Jun 20237.11%−2.14
15 Jun 20239.25%+0.18
31 May 20239.07%−0.90
15 May 20239.97%−0.84
28 Apr 202310.81%−0.52
14 Apr 202311.33%−0.25
31 Mar 202311.58%+0.49
15 Mar 202311.09%+0.26
28 Feb 202310.83%+0.14
15 Feb 202310.69%+2.32
31 Jan 20238.37%−0.04
13 Jan 20238.41%+0.31
30 Dec 20228.10%−0.15
15 Dec 20228.25%−0.58
30 Nov 20228.83%−0.99
15 Nov 20229.82%−1.39
31 Oct 202211.21%+0.15
14 Oct 202211.06%+2.49
30 Sep 20228.57%−0.35
15 Sep 20228.92%+0.58
31 Aug 20228.34%−2.82
15 Aug 202211.16%−2.55
29 Jul 202213.71%−1.69
15 Jul 202215.40%+1.13
30 Jun 202214.27%+1.71
15 Jun 202212.56%−1.69
31 May 202214.25%−2.54
13 May 202216.79%−4.14
29 Apr 202220.93%+4.09
14 Apr 202216.84%+0.96
31 Mar 202215.88%+1.32
15 Mar 202214.56%−0.21
28 Feb 202214.77%+2.29
15 Feb 202212.48%−0.49
31 Jan 202212.97%+1.73
14 Jan 202211.24%−1.53
31 Dec 202112.77%+0.85
15 Dec 202111.92%+0.27
30 Nov 202111.65%+0.02
15 Nov 202111.63%−4.11
29 Oct 202115.74%−6.96
15 Oct 202122.70%+3.20
30 Sep 202119.50%−1.53
15 Sep 202121.03%+2.33
31 Aug 202118.70%+2.53
13 Aug 202116.17%−0.06
30 Jul 202116.23%+1.37
15 Jul 202114.86%+5.93
15 Apr 20218.93%+1.15
31 Mar 20217.78%−0.32
15 Mar 20218.10%+7.61
30 Nov 20200.49%+0.03
13 Nov 20200.46%−0.36
30 Oct 20200.82%+0.09
15 Oct 20200.73%−0.08
30 Sep 20200.81%−0.35
15 Sep 20201.16%+0.30
31 Aug 20200.86%+0.35
31 Jul 20200.51%+0.09
15 Jul 20200.42%−0.17
30 Jun 20200.59%0.00
15 Jun 20200.59%−0.62
29 May 20201.21%−0.13
15 May 20201.34%+0.67
30 Apr 20200.67%+0.07
15 Apr 20200.60%+0.01
31 Mar 20200.59%−0.57
13 Mar 20201.16%+0.22
28 Feb 20200.94%+0.12
14 Feb 20200.82%+0.01
31 Jan 20200.81%+0.03
15 Jan 20200.78%−0.21
31 Dec 20190.99%+0.26
13 Dec 20190.73%+0.05
29 Nov 20190.68%−0.04
15 Nov 20190.72%+0.10
31 Oct 20190.62%+0.04
15 Oct 20190.58%–

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

Frequently asked questions

How shorted is Aterian, Inc. right now?
1.20% of Aterian, Inc.'s (ATER) shares outstanding were reported short for settlement date 31 Aug 2026, per FINRA's consolidated short interest report.
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 ATER'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 ATER's days to cover?
1.55 days for settlement date 31 Aug 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.