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HowShorted

How shorted is Alto Ingredients, Inc.? ALTO

#914most shorted US stockof 3,805 ranked stocks, more shorted than 75%

8.40%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
+0.26
5 reports (~10 weeks)
+3.07
days to cover
5.80
Aggregate net short position time series for Alto Ingredients, 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 Alto Ingredients, 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 Aug 20267.74% 31 Jul 20267.51% 14 Aug 2026−0.23
6 May 20262.40% 30 Apr 20261.88% 15 May 2026−0.52
4 Mar 20260.92% 27 Feb 20261.94% 13 Mar 2026+1.02
5 Nov 20250.56% 31 Oct 20251.28% 14 Nov 2025+0.72
6 Aug 20250.53% 31 Jul 20250.60% 15 Aug 2025+0.07
7 May 20251.26% 30 Apr 20251.02% 15 May 2025−0.24
5 Mar 20251.15% 28 Feb 20251.33% 14 Mar 2025+0.18
6 Nov 20241.00% 31 Oct 20241.27% 15 Nov 2024+0.27

Fails to deliver

The SEC's fails-to-deliver figure for ALTO: 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
886
10 Sep 2026
Highest in window
181,369
16 Jul 2026
Days with a balance
43
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Alto Ingredients, 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 181K shares.

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Sector: Materials

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 20268.40%+0.26
31 Aug 20268.14%+0.63
14 Aug 20267.51%−0.23
31 Jul 20267.74%+0.32
15 Jul 20267.42%+2.09
30 Jun 20265.33%+2.38
15 Jun 20262.95%−0.01
29 May 20262.96%+1.08
15 May 20261.88%−0.52
30 Apr 20262.40%+0.04
15 Apr 20262.36%+0.35
31 Mar 20262.01%+0.07
13 Mar 20261.94%+1.02
27 Feb 20260.92%−0.22
13 Feb 20261.14%+0.30
30 Jan 20260.84%−0.04
15 Jan 20260.88%+0.03
31 Dec 20250.85%+0.02
15 Dec 20250.83%+0.07
28 Nov 20250.76%−0.52
14 Nov 20251.28%+0.72
31 Oct 20250.56%−0.01
15 Oct 20250.57%−0.08
30 Sep 20250.65%+0.02
15 Sep 20250.63%−0.02
29 Aug 20250.65%+0.05
15 Aug 20250.60%+0.07
31 Jul 20250.53%−0.07
15 Jul 20250.60%−0.06
30 Jun 20250.66%−0.48
13 Jun 20251.14%+0.01
30 May 20251.13%+0.11
15 May 20251.02%−0.24
30 Apr 20251.26%−0.09
15 Apr 20251.35%−0.14
31 Mar 20251.49%+0.16
14 Mar 20251.33%+0.18
28 Feb 20251.15%+0.25
14 Feb 20250.90%+0.15
31 Jan 20250.75%−0.06
15 Jan 20250.81%+0.12
31 Dec 20240.69%−0.07
13 Dec 20240.76%−0.19
29 Nov 20240.95%−0.32
15 Nov 20241.27%+0.27
31 Oct 20241.00%−0.16
15 Oct 20241.16%+0.50
30 Sep 20240.66%−0.42
13 Sep 20241.08%−0.05
30 Aug 20241.13%−0.38
15 Aug 20241.51%+0.31
31 Jul 20241.20%+0.12
15 Jul 20241.08%−0.11
28 Jun 20241.19%−0.04
14 Jun 20241.23%−0.01
31 May 20241.24%−0.23
15 May 20241.47%−0.25
30 Apr 20241.72%+0.35
15 Apr 20241.37%−0.36
28 Mar 20241.73%−0.29
15 Mar 20242.02%+0.38
29 Feb 20241.64%−0.20
15 Feb 20241.84%−0.29
31 Jan 20242.13%−0.08
12 Jan 20242.21%−0.13
29 Dec 20232.34%−0.23
15 Dec 20232.57%−0.02
30 Nov 20232.59%−0.11
15 Nov 20232.70%−0.24
31 Oct 20232.94%−0.22
13 Oct 20233.16%+0.19
29 Sep 20232.97%+0.33
15 Sep 20232.64%+0.09
31 Aug 20232.55%+0.32
15 Aug 20232.23%−0.24
31 Jul 20232.47%−0.09
14 Jul 20232.56%+0.51
30 Jun 20232.05%−2.87
15 Jun 20234.92%+0.09
31 May 20234.83%+0.63
15 May 20234.20%+0.28
28 Apr 20233.92%+0.19
14 Apr 20233.73%+0.36
31 Mar 20233.37%+0.42
15 Mar 20232.95%−0.09
28 Feb 20233.04%−0.02
15 Feb 20233.06%−0.47
31 Jan 20233.53%+0.12
13 Jan 20233.41%−0.31
30 Dec 20223.72%+0.24
15 Dec 20223.48%+0.63
30 Nov 20222.85%−0.19
15 Nov 20223.04%−0.64
31 Oct 20223.68%−0.77
14 Oct 20224.45%−0.19
30 Sep 20224.64%−5.45
15 Sep 202210.09%−1.41
31 Aug 202211.50%−1.21
15 Aug 202212.71%+0.30
29 Jul 202212.41%+0.06
15 Jul 202212.35%−0.03
30 Jun 202212.38%+2.49
15 Jun 20229.89%+0.27
31 May 20229.62%−3.41
13 May 202213.03%−1.11
29 Apr 202214.14%+2.21
14 Apr 202211.93%+0.92
31 Mar 202211.01%−3.76
15 Mar 202214.77%+2.00
28 Feb 202212.77%−0.38
15 Feb 202213.15%+0.86
31 Jan 202212.29%−0.25
14 Jan 202212.54%+0.59
31 Dec 202111.95%−1.31
15 Dec 202113.26%+0.53
30 Nov 202112.73%−0.60
15 Nov 202113.33%−1.03
29 Oct 202114.36%−0.12
15 Oct 202114.48%−0.40
30 Sep 202114.88%+0.07
15 Sep 202114.81%−0.02
31 Aug 202114.83%−2.76
13 Aug 202117.59%−0.50
30 Jul 202118.09%−0.08
15 Jul 202118.17%−0.44
30 Jun 202118.61%+2.54
15 Jun 202116.07%+1.49
28 May 202114.58%−2.15
14 May 202116.73%−0.85
30 Apr 202117.58%−0.78
15 Apr 202118.36%+10.41
29 Jan 20217.95%−1.59
15 Jan 20219.54%+0.83
31 Dec 20208.71%+1.89
15 Dec 20206.82%+0.15
30 Nov 20206.67%−0.82
13 Nov 20207.49%+0.13
30 Oct 20207.36%+3.70
15 Oct 20203.66%−1.11
30 Sep 20204.77%+0.94
15 Sep 20203.83%+1.10
31 Aug 20202.73%−1.41
14 Aug 20204.14%+3.82
15 Jul 20200.32%+0.13
30 Jun 20200.19%−0.01
15 Jun 20200.20%−0.25
29 May 20200.45%−0.27
15 May 20200.72%+0.26
30 Apr 20200.46%−0.05
15 Apr 20200.51%−0.05
31 Mar 20200.56%−0.14
13 Mar 20200.70%+0.06
28 Feb 20200.64%−0.09
14 Feb 20200.73%−0.12
31 Jan 20200.85%−0.03
15 Jan 20200.88%−0.06
31 Dec 20190.94%−0.25
13 Dec 20191.19%−0.05
29 Nov 20191.24%+0.10
15 Nov 20191.14%−1.11
31 Oct 20192.25%+0.65
15 Oct 20191.60%−0.95
30 Sep 20192.55%+0.70
13 Sep 20191.85%−0.15
30 Aug 20192.00%−0.21
15 Aug 20192.21%+0.10
31 Jul 20192.11%−0.25
15 Jul 20192.36%−0.55
28 Jun 20192.91%+0.29
14 Jun 20192.62%+0.17
31 May 20192.45%+0.58
15 May 20191.87%−0.11
30 Apr 20191.98%+0.70
15 Apr 20191.28%−0.10
29 Mar 20191.38%+0.68
15 Mar 20190.70%−0.19
28 Feb 20190.89%+0.03
15 Feb 20190.86%−0.43
31 Jan 20191.29%−0.76
31 Dec 20182.05%+0.27
14 Dec 20181.78%−0.75
30 Nov 20182.53%−0.01
15 Nov 20182.54%+0.22
31 Oct 20182.32%−0.22
15 Oct 20182.54%+0.52
28 Sep 20182.02%+0.11
14 Sep 20181.91%−0.02
31 Aug 20181.93%−0.09
15 Aug 20182.02%+0.05
31 Jul 20181.97%−2.95
15 Jun 20184.92%−0.68
31 May 20185.60%+0.28
15 May 20185.32%+0.16
30 Apr 20185.16%+0.22
13 Apr 20184.94%+0.88
29 Mar 20184.06%−0.35
15 Mar 20184.41%−1.68
28 Feb 20186.09%+1.56
15 Feb 20184.53%+1.92
31 Jan 20182.61%+0.64
12 Jan 20181.97%+0.23
29 Dec 20171.74%–

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

Frequently asked questions

How shorted is Alto Ingredients, Inc. right now?
8.40% of Alto Ingredients, Inc.'s (ALTO) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 914th 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 ALTO'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 ALTO's days to cover?
5.80 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.