greeksoup/ stock research
Stock research / United States / AMRC / Short interest

Ameresco, Inc. short interest

5.0M shares of Ameresco were sold short at the 15 October 2026 settlement, near the top of its range over the last year (3.1M to 5.4M). Short sellers would need 9.7 days of normal trading to buy them back.

Shares sold short5.0Mat 15 Oct 2026
Change on the settlement before-5.3%+49% over a year
Days to cover9.74at 512K shares a day
Of shares in issue9.40%shares short over shares outstanding
New to this? How to read this page
  1. Short interest is the number of shares investors have borrowed and sold, betting the price will fall, and not yet bought back.
  2. Days to cover is shares short over an average day's trading: how many days it would take short sellers to buy them all back. Above 5 or so is high.
  3. Rising short interest says more investors are betting against the stock. A crowded short can also rise fast if shorts rush to buy back.
  4. Brokers report it twice a month to FINRA, about ten days after each settlement date.
  5. What is short interest?

Short interest, days to cover and the price

Short interest is near the top of its range over the last year (3.1M to 5.4M), and the share price moved -53% over the last year.

Shares sold shortDays to coverShare price

Three charts on one timeline. Top: shares sold short at each settlement. Middle: days to cover, taller meaning shorts would need longer to buy back. Bottom: the share price, so you can see whether shorts added as the price fell or rose.

How it compares

every company on the site

    The bar ranks every company on the site from the lowest on the left to the highest on the right, in three equal thirds; the small figures under it are the values where each third starts, and the black tick is the middle company. The orange dot is this company; the grey ticks are the other companies in its industry (hover or tap for names). A hatched block is companies tied at none.

    Every settlement since 29 Dec 2017 as a table
    SettlementShares shortChangeAverage daily volumeDays to cover
    15 October 20265.0M-5.3%512K9.74
    30 September 20265.3M-2.9%594K8.86
    15 September 20265.4M+8.7%684K7.92
    31 August 20265.0M+10.7%850K5.87
    14 August 20264.5M+0.6%841K5.36
    31 July 20264.5M+6.3%546K8.21
    15 July 20264.2M+1.1%457K9.22
    30 June 20264.2M+4.0%619K6.74
    15 June 20264.0M-1.0%656K6.12
    29 May 20264.1M+3.3%689K5.88
    15 May 20263.9M-0.8%663K5.91
    30 April 20264.0M+3.4%435K9.08
    15 April 20263.8M+0.7%598K6.39
    31 March 20263.8M+15.2%584K6.50
    13 March 20263.3M+5.2%579K5.70
    27 February 20263.1M-2.3%393K7.97
    13 February 20263.2M-2.1%510K6.28
    30 January 20263.3M-7.8%618K5.30
    15 January 20263.6M+4.6%431K8.24
    31 December 20253.4M-3.6%427K7.95
    15 December 20253.5M+2.3%525K6.72
    28 November 20253.4M+3.2%409K8.42
    14 November 20253.3M+2.1%658K5.08
    31 October 20253.3M-2.3%618K5.29
    15 October 20253.3M+2.1%725K4.62
    30 September 20253.3M+8.1%818K4.01
    15 September 20253.0M+6.2%677K4.48
    29 August 20252.9M+8.3%602K4.75
    15 August 20252.6M-5.3%940K2.81
    31 July 20252.8M-9.7%857K3.25
    15 July 20253.1M+6.2%685K4.51
    30 June 20252.9M-10.3%534K5.44
    13 June 20253.2M-0.3%376K8.62
    30 May 20253.2M+5.5%428K7.59
    15 May 20253.1M-12.0%798K3.86
    30 April 20253.5M+24.4%897K3.90
    15 April 20252.8M+9.7%590K4.76
    31 March 20252.6M-12.2%748K3.43
    14 March 20252.9M+12.4%1.4M2.16
    28 February 20252.6M-7.4%806K3.22
    14 February 20252.8M+3.8%301K9.33
    31 January 20252.7M-8.7%484K5.59
    15 January 20253.0M-3.8%331K8.93
    31 December 20243.1M+2.7%324K9.49
    13 December 20243.0M-2.3%295K10.15
    29 November 20243.1M-4.1%313K9.81
    15 November 20243.2M-7.9%545K5.88
    31 October 20243.5M-6.6%422K8.24
    15 October 20243.7M-2.5%236K15.75
    30 September 20243.8M-0.7%329K11.60
    13 September 20243.8M-1.1%303K12.67
    30 August 20243.9M-4.0%207K18.71
    15 August 20244.0M+0.2%484K8.35
    31 July 20244.0M-3.5%593K6.80
    15 July 20244.2M+1.4%534K7.83
    28 June 20244.1M+2.1%462K8.92
    14 June 20244.0M-7.4%358K11.26
    31 May 20244.4M-4.6%579K7.52
    15 May 20244.6M-7.8%629K7.27
    30 April 20245.0M+0.0%471K10.52
    15 April 20245.0M-0.4%516K9.61
    28 March 20245.0M+3.8%550K9.06
    15 March 20244.8M+19.4%744K6.45
    29 February 20244.0M-0.2%545K7.37
    15 February 20244.0M+1.5%428K9.40
    31 January 20244.0M-2.7%573K6.92
    12 January 20244.1M+2.5%416K9.79
    29 December 20234.0M+3.5%313K12.69
    15 December 20233.8M+4.5%597K6.43
    30 November 20233.7M-15.0%467K7.88
    15 November 20234.3M+15.2%1.2M3.68
    31 October 20233.8M-0.7%477K7.87
    13 October 20233.8M-1.0%364K10.38
    29 September 20233.8M-2.6%369K10.35
    15 September 20233.9M+9.1%356K11.01
    31 August 20233.6M+2.0%318K11.29
    15 August 20233.5M+3.2%409K8.60
    31 July 20233.4M-3.7%424K8.04
    14 July 20233.5M-0.8%327K10.83
    30 June 20233.6M-6.7%374K9.55
    15 June 20233.8M+1.0%268K14.30
    31 May 20233.8M+4.3%271K14.00
    15 May 20233.6M+2.1%441K8.24
    28 April 20233.6M+2.5%395K9.02
    14 April 20233.5M-2.3%277K12.53
    31 March 20233.6M+11.5%422K8.41
    15 March 20233.2M+1.2%446K7.14
    28 February 20233.1M-1.0%475K6.62
    15 February 20233.2M-5.5%344K9.25
    31 January 20233.4M-3.1%205K16.37
    13 January 20233.5M+0.8%274K12.66
    30 December 20223.4M+1.3%219K15.72
    15 December 20223.4M+5.5%224K15.14
    30 November 20223.2M-3.6%213K15.09
    15 November 20223.3M-0.3%411K8.14
    31 October 20223.4M+8.5%391K8.57
    14 October 20223.1M-5.1%374K8.25
    30 September 20223.3M+5.1%333K9.77
    15 September 20223.1M+4.4%317K9.78
    31 August 20223.0M+0.3%278K10.69
    15 August 20223.0M-21.5%437K6.77
    29 July 20223.8M+1.6%311K12.13
    15 July 20223.7M+2.9%370K10.01
    30 June 20223.6M-2.8%491K7.35
    15 June 20223.7M+30.0%490K7.57
    31 May 20222.9M-8.8%311K9.17
    13 May 20223.1M+4.8%549K5.70
    29 April 20223.0M+17.7%467K6.38
    14 April 20222.5M+22.3%507K5.00
    31 March 20222.1M+6.0%447K4.64
    15 March 20222.0M-16.6%512K3.82
    28 February 20222.3M-1.4%388K6.05
    15 February 20222.4M+37.4%382K6.22
    31 January 20221.7M+65.5%610K2.84
    14 January 20221.0M+13.6%349K3.00
    31 December 2021920K-13.6%259K3.55
    15 December 20211.1M-1.1%256K4.17
    30 November 20211.1M-19.8%258K4.18
    15 November 20211.3M-4.3%483K2.78
    29 October 20211.4M+15.0%375K3.74
    15 October 20211.2M+8.9%227K5.39
    30 September 20211.1M+10.0%376K2.98
    15 September 20211.0M+9.0%354K2.88
    31 August 2021936K-4.9%185K5.06
    13 August 2021984K-1.8%248K3.97
    30 July 20211.0M+3.3%243K4.12
    15 July 2021969K-22.8%228K4.25
    30 June 20211.3M+6.2%428K2.93
    15 June 20211.2M-8.5%253K4.68
    28 May 20211.3M-18.1%262K4.94
    14 May 20211.6M+15.9%357K4.42
    30 April 20211.4M-14.1%272K5.01
    15 April 20211.6M-8.4%512K3.10
    31 March 20211.7M+34.1%712K2.43
    15 March 20211.3M-15.4%1.1M1.19
    26 February 20211.5M+10.7%344K4.44
    12 February 20211.4M+5.2%407K3.38
    29 January 20211.3M-20.5%403K3.25
    15 January 20211.6M+21.6%528K3.12
    31 December 20201.4M+23.8%402K3.37
    15 December 20201.1M+44.3%321K3.41
    30 November 2020759K-6.4%275K2.76
    13 November 2020811K-4.3%445K1.82
    30 October 2020847K-6.6%311K2.72
    15 October 2020907K-28.3%244K3.72
    30 September 20201.3M+24.7%211K5.98
    15 September 20201.0M-1.3%285K3.55
    31 August 20201.0M+30.1%273K3.77
    14 August 2020789K-35.7%321K2.46
    31 July 20201.2M+2.9%227K5.41
    15 July 20201.2M-8.7%611K1.95
    30 June 20201.3M+53.4%467K2.80
    15 June 2020852K-10.0%186K4.58
    29 May 2020946K-2.3%180K5.27
    15 May 2020969K+16.7%229K4.22
    30 April 2020830K-9.7%168K4.93
    15 April 2020919K-1.0%193K4.75
    31 March 2020928K-11.7%236K3.93
    13 March 20201.1M-16.7%356K2.96
    28 February 20201.3M+12.8%387K3.26
    14 February 20201.1M-4.1%176K6.35
    31 January 20201.2M-9.0%119K9.84
    15 January 20201.3M+10.4%200K6.41
    31 December 20191.2M+2.8%128K9.11
    13 December 20191.1M-1.0%92K12.34
    29 November 20191.1M+6.1%140K8.14
    15 November 20191.1M+2.3%133K8.07
    31 October 20191.1M+12.4%77K13.64
    15 October 2019935K+3.4%98K9.50
    30 September 2019905K-11.3%192K4.72
    13 September 20191.0M+18.1%137K7.46
    30 August 2019864K-0.8%90K9.63
    15 August 2019872K-2.2%96K9.05
    31 July 2019892K-11.1%75K11.96
    15 July 20191.0M+2.8%83K12.14
    28 June 2019976K+32.8%178K5.49
    14 June 2019735K-13.2%102K7.21
    31 May 2019847K+18.0%126K6.70
    15 May 2019717K+69.9%155K4.62
    30 April 2019422K-0.5%133K3.19
    15 April 2019424K-7.2%105K4.04
    29 March 2019457K+33.1%134K3.40
    15 March 2019344K-6.9%222K1.55
    28 February 2019369K+9.7%158K2.33
    15 February 2019336K-10.4%73K4.59
    31 January 2019375K+10.7%94K4.00
    15 January 2019339K+1.6%94K3.60
    31 December 2018334K+10.8%123K2.71
    14 December 2018301K+8.1%97K3.10
    30 November 2018278K+9.1%123K2.27
    15 November 2018255K-33.2%149K1.72
    31 October 2018382K+16.3%168K2.27
    15 October 2018328K+129.6%174K1.89
    28 September 2018143K-9.5%118K1.22
    14 September 2018158K-7.9%81K1.96
    31 August 2018172K-7.3%104K1.66
    15 August 2018185K+5.6%158K1.17
    31 July 2018175K-11.3%92K1.91
    13 July 2018198K-10.7%125K1.58
    29 June 2018222K+19.8%143K1.55
    15 June 2018185K-2.9%103K1.79
    31 May 2018191K+0.4%104K1.84
    15 May 2018190K-32.9%144K1.32
    30 April 2018283K+5.5%148K1.91
    13 April 2018268K+3.5%179K1.50
    29 March 2018259K+33.3%258K1.00
    15 March 2018194K-5.1%201K1.00
    28 February 2018205K-5.5%41K4.95
    15 February 2018217K+18.2%55K3.93
    31 January 2018183K+10.2%71K2.57
    12 January 2018166K-25.6%138K1.20
    29 December 2017224K50K4.49
    Shares in millions (M) or thousands (K); hold the pointer on a figure for the exact count. FINRA publishes consolidated short interest twice a month, about ten days after each settlement.