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HowShorted

How shorted is Ameresco, Inc.? AMRC

#648most shorted US stockof 3,805 ranked stocks, more shorted than 82%

10.22%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
+0.82
5 reports (~10 weeks)
+2.34
days to cover
7.92
Aggregate net short position time series for Ameresco, 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 Ameresco, 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
3 Aug 20268.44% 31 Jul 20268.49% 14 Aug 2026+0.05
4 May 20267.49% 30 Apr 20267.41% 15 May 2026−0.08
2 Mar 20265.93% 27 Feb 20266.24% 13 Mar 2026+0.31
3 Nov 20256.19% 31 Oct 20256.33% 14 Nov 2025+0.14
4 Aug 20255.29% 31 Jul 20255.01% 15 Aug 2025−0.28
5 May 20256.66% 30 Apr 20255.85% 15 May 2025−0.81
27 Feb 20255.35% 14 Feb 20254.94% 28 Feb 2025−0.41
7 Nov 20246.63% 31 Oct 20246.10% 15 Nov 2024−0.53

Fails to deliver

The SEC's fails-to-deliver figure for AMRC: 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
57
14 Sep 2026
Highest in window
223,050
1 Apr 2026
Days with a balance
56
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Ameresco, 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 223K shares.

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Sector: Industrials

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 202610.22%+0.82
31 Aug 20269.40%+0.91
14 Aug 20268.49%+0.05
31 Jul 20268.44%+0.48
15 Jul 20267.96%+0.08
30 Jun 20267.88%+0.31
15 Jun 20267.57%−0.08
29 May 20267.65%+0.24
15 May 20267.41%−0.08
30 Apr 20267.49%+0.25
15 Apr 20267.24%+0.05
31 Mar 20267.19%+0.95
13 Mar 20266.24%+0.31
27 Feb 20265.93%−0.14
13 Feb 20266.07%−0.13
30 Jan 20266.20%−0.53
15 Jan 20266.73%+0.30
31 Dec 20256.43%−0.24
15 Dec 20256.67%+0.14
28 Nov 20256.53%+0.20
14 Nov 20256.33%+0.14
31 Oct 20256.19%−0.16
15 Oct 20256.35%+0.13
30 Sep 20256.22%+0.46
15 Sep 20255.76%+0.34
29 Aug 20255.42%+0.41
15 Aug 20255.01%−0.28
31 Jul 20255.29%−0.57
15 Jul 20255.86%+0.34
30 Jun 20255.52%−0.64
13 Jun 20256.16%−0.01
30 May 20256.17%+0.32
15 May 20255.85%−0.81
30 Apr 20256.66%+1.31
15 Apr 20255.35%+0.47
31 Mar 20254.88%−0.68
14 Mar 20255.56%+0.62
28 Feb 20254.94%−0.41
14 Feb 20255.35%+0.20
31 Jan 20255.15%−0.49
15 Jan 20255.64%−0.23
31 Dec 20245.87%+0.16
13 Dec 20245.71%−0.14
29 Nov 20245.85%−0.25
15 Nov 20246.10%−0.53
31 Oct 20246.63%−0.46
15 Oct 20247.09%−0.19
30 Sep 20247.28%−0.04
13 Sep 20247.32%−0.08
30 Aug 20247.40%−0.31
15 Aug 20247.71%+0.01
31 Jul 20247.70%−0.28
15 Jul 20247.98%+0.11
28 Jun 20247.87%+0.16
14 Jun 20247.71%−0.61
31 May 20248.32%−0.41
15 May 20248.73%−0.75
30 Apr 20249.48%0.00
15 Apr 20249.48%−0.04
28 Mar 20249.52%+0.34
15 Mar 20249.18%+1.50
29 Feb 20247.68%−0.03
15 Feb 20247.71%+0.12
31 Jan 20247.59%−0.21
12 Jan 20247.80%+0.19
29 Dec 20237.61%+0.26
15 Dec 20237.35%+0.31
30 Nov 20237.04%−1.24
15 Nov 20238.28%+1.09
31 Oct 20237.19%−0.05
13 Oct 20237.24%−0.07
29 Sep 20237.31%−0.19
15 Sep 20237.50%+0.62
31 Aug 20236.88%+0.14
15 Aug 20236.74%+0.20
31 Jul 20236.54%−0.26
14 Jul 20236.80%−0.05
30 Jun 20236.85%−0.49
15 Jun 20237.34%+0.07
31 May 20237.27%+0.30
15 May 20236.97%+0.14
28 Apr 20236.83%+0.15
14 Apr 20236.68%−0.16
31 Mar 20236.84%+0.70
15 Mar 20236.14%+0.08
28 Feb 20236.06%−0.06
15 Feb 20236.12%−0.36
31 Jan 20236.48%−0.20
13 Jan 20236.68%+0.05
30 Dec 20226.63%+0.09
15 Dec 20226.54%+0.34
30 Nov 20226.20%−0.24
15 Nov 20226.44%−0.02
31 Oct 20226.46%+0.50
14 Oct 20225.96%−0.32
30 Sep 20226.28%+0.30
15 Sep 20225.98%+0.25
31 Aug 20225.73%+0.02
15 Aug 20225.71%−1.56
29 Jul 20227.27%+0.11
15 Jul 20227.16%+0.20
30 Jun 20226.96%−0.19
15 Jun 20227.15%+1.65
31 May 20225.50%−0.53
13 May 20226.03%+0.28
29 Apr 20225.75%+0.85
14 Apr 20224.90%+0.90
31 Mar 20224.00%+0.22
15 Mar 20223.78%−0.75
28 Feb 20224.53%−0.08
15 Feb 20224.61%+1.25
31 Jan 20223.36%+1.33
14 Jan 20222.03%+0.25
31 Dec 20211.78%−0.29
15 Dec 20212.07%−0.02
30 Nov 20212.09%−0.51
15 Nov 20212.60%−0.12
29 Oct 20212.72%+0.34
15 Oct 20212.38%+0.20
30 Sep 20212.18%+0.20
15 Sep 20211.98%+0.16
31 Aug 20211.82%−0.09
13 Aug 20211.91%−0.04
30 Jul 20211.95%+0.06
15 Jul 20211.89%−0.56
30 Jun 20212.45%+0.14
15 Jun 20212.31%−0.21
28 May 20212.52%−0.56
14 May 20213.08%+0.42
30 Apr 20212.66%−0.63
15 Apr 20213.29%−0.30
31 Mar 20213.59%+0.91
15 Mar 20212.68%−0.48
26 Feb 20213.16%+0.28
12 Feb 20212.88%+0.14
29 Jan 20212.74%−0.70
15 Jan 20213.44%+0.61
31 Dec 20202.83%+0.54
15 Dec 20202.29%+0.70
30 Nov 20201.59%−0.10
13 Nov 20201.69%−0.09
30 Oct 20201.78%−0.12
15 Oct 20201.90%−0.75
30 Sep 20202.65%+0.53
15 Sep 20202.12%−0.03
31 Aug 20202.15%+0.50
14 Aug 20201.65%−0.92
31 Jul 20202.57%+0.06
15 Jul 20202.51%−0.24
30 Jun 20202.75%+0.96
15 Jun 20201.79%−0.20
29 May 20201.99%−0.05
15 May 20202.04%–

Newest first. Scroll inside the table for earlier dates, back to 15 May 2020.

Frequently asked questions

How shorted is Ameresco, Inc. right now?
10.22% of Ameresco, Inc.'s (AMRC) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 648th 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 AMRC'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 AMRC's days to cover?
7.92 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.