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Anterix Inc. short interest

1.7M shares of Anterix were sold short at the 15 October 2026 settlement, near the middle of its range over the last year (955K to 2.0M). Short sellers would need 6.1 days of normal trading to buy them back.

Shares sold short1.7Mat 15 Oct 2026
Change on the settlement before+0.3%+74% over a year
Days to cover6.08at 273K shares a day
Of shares in issue8.49%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 middle of its range over the last year (955K to 2.0M), and the share price moved +303% 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

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    Every settlement since 28 Jun 2019 as a table
    SettlementShares shortChangeAverage daily volumeDays to cover
    15 October 20261.7M+0.3%273K6.08
    30 September 20261.7M+0.5%296K5.60
    15 September 20261.6M+2.0%303K5.43
    31 August 20261.6M-11.0%298K5.42
    14 August 20261.8M+8.3%386K4.70
    31 July 20261.7M-17.2%336K4.99
    15 July 20262.0M+20.2%433K4.67
    30 June 20261.7M-3.8%616K2.73
    15 June 20261.7M+10.1%565K3.10
    29 May 20261.6M-4.3%394K4.03
    15 May 20261.7M+6.3%322K5.16
    30 April 20261.6M+1.2%350K4.46
    15 April 20261.5M-2.8%308K5.01
    31 March 20261.6M+3.8%276K5.74
    13 March 20261.5M-4.5%299K5.12
    27 February 20261.6M+10.1%568K2.82
    13 February 20261.5M+4.2%484K3.01
    30 January 20261.4M+14.0%402K3.48
    15 January 20261.2M+8.4%204K6.01
    31 December 20251.1M+1.5%204K5.54
    15 December 20251.1M+0.1%220K5.06
    28 November 20251.1M-0.1%225K4.93
    14 November 20251.1M+9.8%266K4.19
    31 October 20251.0M+6.2%163K6.21
    15 October 2025955K+7.4%201K4.76
    30 September 2025889K-6.0%262K3.39
    15 September 2025946K-0.0%171K5.54
    29 August 2025946K-12.1%242K3.91
    15 August 20251.1M+10.7%205K5.25
    31 July 2025971K-2.7%184K5.27
    15 July 2025999K+5.2%180K5.55
    30 June 2025949K+12.3%267K3.55
    13 June 2025846K+4.2%121K6.98
    30 May 2025811K+3.7%113K7.20
    15 May 2025782K-0.2%103K7.58
    30 April 2025784K-3.3%123K6.36
    15 April 2025810K-1.2%153K5.30
    31 March 2025820K-2.0%158K5.18
    14 March 2025837K+11.1%178K4.71
    28 February 2025753K-5.6%232K3.25
    14 February 2025798K+5.5%246K3.25
    31 January 2025756K+3.4%169K4.48
    15 January 2025732K+8.5%94K7.76
    31 December 2024674K+4.9%90K7.46
    13 December 2024643K+4.3%89K7.26
    29 November 2024616K-11.0%151K4.09
    15 November 2024693K-3.7%117K5.90
    31 October 2024719K-7.2%97K7.38
    15 October 2024775K+15.2%184K4.20
    30 September 2024673K-8.1%293K2.30
    13 September 2024732K-10.3%370K1.98
    30 August 2024816K+1.9%254K3.22
    15 August 2024800K+14.2%172K4.64
    31 July 2024701K-10.9%88K7.97
    15 July 2024786K-19.2%175K4.50
    28 June 2024973K+4.8%305K3.19
    14 June 2024928K-4.7%105K8.83
    31 May 2024974K-3.2%99K9.81
    15 May 20241.0M-4.8%102K9.86
    30 April 20241.1M+1.1%119K8.90
    15 April 20241.0M+2.1%69K15.14
    28 March 20241.0M-4.8%73K13.97
    15 March 20241.1M-5.9%102K10.54
    29 February 20241.1M-3.0%148K7.69
    15 February 20241.2M+13.3%202K5.83
    31 January 20241.0M-0.4%88K11.83
    12 January 20241.0M+0.2%78K13.32
    29 December 20231.0M-8.8%85K12.23
    15 December 20231.1M-3.0%152K7.51
    30 November 20231.2M+2.9%130K9.08
    15 November 20231.1M-5.5%169K6.78
    31 October 20231.2M+4.7%177K6.85
    13 October 20231.2M-6.3%162K7.12
    29 September 20231.2M-0.1%308K4.01
    15 September 20231.2M+6.1%270K4.57
    31 August 20231.2M+7.0%199K5.84
    15 August 20231.1M+3.1%262K4.16
    31 July 20231.1M+1.3%148K7.14
    14 July 20231.0M+0.7%144K7.23
    30 June 20231.0M-11.5%188K5.51
    15 June 20231.2M+5.4%157K7.45
    31 May 20231.1M-2.8%181K6.14
    15 May 20231.1M+8.2%152K7.52
    28 April 20231.1M+6.6%90K11.72
    14 April 2023990K+13.1%114K8.71
    31 March 2023875K-30.0%216K4.05
    15 March 20231.3M+73.4%148K8.43
    28 February 2023721K+3.8%193K3.73
    15 February 2023695K-3.6%99K6.99
    31 January 2023721K+0.3%86K8.37
    13 January 2023719K+1.9%53K13.68
    30 December 2022706K+17.2%94K7.49
    15 December 2022602K-2.8%118K5.11
    30 November 2022620K-13.0%82K7.60
    15 November 2022712K-1.9%138K5.16
    31 October 2022726K-10.1%110K6.59
    14 October 2022807K-6.8%121K6.70
    30 September 2022866K+31.0%167K5.18
    15 September 2022661K-0.9%127K5.19
    31 August 2022667K-5.9%90K7.44
    15 August 2022709K+5.9%70K10.13
    29 July 2022670K-14.1%64K10.53
    15 July 2022780K+1.5%47K16.72
    30 June 2022768K-1.6%86K8.94
    15 June 2022781K+6.1%77K10.13
    31 May 2022736K-0.3%100K7.39
    13 May 2022739K+5.3%87K8.50
    29 April 2022702K+0.4%61K11.51
    14 April 2022699K-5.8%61K11.37
    31 March 2022742K-0.1%62K11.87
    15 March 2022743K-1.1%86K8.62
    28 February 2022751K+0.4%61K12.34
    15 February 2022749K+9.5%85K8.82
    31 January 2022684K+6.4%100K6.87
    14 January 2022642K-4.1%58K11.12
    31 December 2021670K+0.3%70K9.50
    15 December 2021668K-3.2%84K7.95
    30 November 2021690K-4.7%146K4.71
    15 November 2021724K-2.6%56K12.88
    29 October 2021743K-4.3%38K19.75
    15 October 2021777K+1.7%61K12.73
    30 September 2021764K+1.7%111K6.85
    15 September 2021751K-3.8%70K10.78
    31 August 2021781K-5.9%60K13.00
    13 August 2021830K-4.4%76K10.88
    30 July 2021869K-6.3%93K9.31
    15 July 2021927K-2.5%74K12.52
    30 June 2021951K-7.0%270K3.53
    15 June 20211.0M-9.6%106K9.61
    28 May 20211.1M+3.9%85K13.23
    14 May 20211.1M-3.8%68K16.10
    30 April 20211.1M-7.1%106K10.66
    15 April 20211.2M+6.9%141K8.63
    31 March 20211.1M+11.8%136K8.40
    15 March 20211.0M-12.6%205K4.97
    26 February 20211.2M+8.5%299K3.90
    12 February 20211.1M-6.6%226K4.76
    29 January 20211.1M-0.8%181K6.34
    15 January 20211.2M-3.3%254K4.57
    31 December 20201.2M+25.3%426K2.82
    15 December 2020957K+2.5%69K13.92
    30 November 2020933K+3.4%149K6.28
    13 November 2020902K-4.5%64K14.08
    30 October 2020945K-3.9%119K7.93
    15 October 2020983K-1.5%65K15.01
    30 September 2020998K-17.7%215K4.64
    15 September 20201.2M+5.8%82K14.74
    31 August 20201.1M+0.9%73K15.69
    14 August 20201.1M+3.9%73K15.45
    31 July 20201.1M+0.3%70K15.51
    15 July 20201.1M-0.0%100K10.93
    30 June 20201.1M+21.9%137K7.96
    15 June 2020893K+5.8%168K5.32
    29 May 2020845K-13.2%155K5.45
    15 May 2020974K+12.2%227K4.28
    30 April 2020868K-11.2%199K4.35
    15 April 2020977K-0.1%111K8.79
    31 March 2020978K-3.4%117K8.36
    13 March 20201.0M+14.9%123K8.20
    28 February 2020881K-17.7%131K6.71
    14 February 20201.1M-0.8%81K13.17
    31 January 20201.1M+17.8%141K7.65
    15 January 2020915K+9.0%86K10.66
    31 December 2019840K-18.2%77K10.86
    13 December 20191.0M+0.8%73K13.99
    29 November 20191.0M+10.6%81K12.55
    15 November 2019920K+0.2%119K7.70
    31 October 2019918K+17.2%61K15.02
    15 October 2019783K+17.7%121K6.45
    30 September 2019665K+3.0%100K6.62
    13 September 2019646K+37.3%114K5.68
    30 August 2019471K+43.0%102K4.62
    15 August 2019329K+14.0%162K2.03
    31 July 2019289K-30.2%247K1.17
    15 July 2019414K-6.2%54K7.65
    28 June 2019441K90K4.93
    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.