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Adtran Holdings, Inc. short interest

12.5M shares of Adtran Holdings were sold short at the 15 October 2026 settlement, near the top of its range over the last year (6.5M to 12.9M). Short sellers would need 7.2 days of normal trading to buy them back.

Shares sold short12.5Mat 15 Oct 2026
Change on the settlement before+5.8%+75% over a year
Days to cover7.24at 1.7M shares a day
Of shares in issue15.46%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 (6.5M to 12.9M), and the share price moved -25% 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 29 Dec 2017 as a table
    SettlementShares shortChangeAverage daily volumeDays to cover
    15 October 202612.5M+5.8%1.7M7.24
    30 September 202611.9M-5.4%1.6M7.20
    15 September 202612.5M-2.9%1.6M8.03
    31 August 202612.9M+9.6%1.7M7.72
    14 August 202611.8M+10.7%2.6M4.61
    31 July 202610.6M-16.2%2.5M4.20
    15 July 202612.7M+0.9%1.4M9.24
    30 June 202612.6M+4.5%2.3M5.44
    15 June 202612.0M+4.8%2.7M4.54
    29 May 202611.5M+0.2%2.9M3.95
    15 May 202611.5M+2.9%3.1M3.76
    30 April 202611.1M+17.5%2.7M4.13
    15 April 20269.5M+15.7%2.4M3.94
    31 March 20268.2M-2.3%2.2M3.81
    13 March 20268.4M+13.0%1.0M8.01
    27 February 20267.4M-7.2%1.6M4.72
    13 February 20268.0M+23.5%1.1M7.42
    30 January 20266.5M-15.0%1.3M5.09
    15 January 20267.6M-6.8%1.0M7.53
    31 December 20258.2M-4.9%1.1M7.55
    15 December 20258.6M+1.5%1.5M5.83
    28 November 20258.5M-1.6%1.3M6.65
    14 November 20258.6M+7.6%2.4M3.53
    31 October 20258.0M+12.1%1.6M4.94
    15 October 20257.2M+8.2%1.3M5.48
    30 September 20256.6M+316.4%3.7M1.81
    15 September 20251.6M-1.0%883K1.80
    29 August 20251.6M-6.4%693K2.32
    15 August 20251.7M-11.2%1.3M1.35
    31 July 20251.9M-4.6%1.3M1.48
    15 July 20252.0M-4.6%927K2.19
    30 June 20252.1M+16.3%1.5M1.46
    13 June 20251.8M+7.3%721K2.53
    30 May 20251.7M-13.9%667K2.55
    15 May 20252.0M-13.3%1.1M1.87
    30 April 20252.3M+20.9%690K3.30
    15 April 20251.9M-7.1%1.1M1.78
    31 March 20252.0M+39.5%997K2.04
    14 March 20251.5M+26.5%1.5M1.00
    28 February 20251.2M+5.7%1.5M1.00
    14 February 20251.1M+13.9%1.3M1.00
    31 January 2025956K-28.9%1.1M1.00
    15 January 20251.3M-17.6%1.1M1.24
    31 December 20241.6M+41.0%600K2.72
    13 December 20241.2M-4.9%499K2.32
    29 November 20241.2M-35.7%706K1.73
    15 November 20241.9M-9.6%951K1.99
    31 October 20242.1M-7.5%362K5.80
    15 October 20242.3M-3.5%421K5.38
    30 September 20242.3M-11.0%527K4.46
    13 September 20242.6M-4.2%398K6.63
    30 August 20242.8M+2.8%387K7.12
    15 August 20242.7M-2.3%815K3.29
    31 July 20242.7M+5.8%766K3.58
    15 July 20242.6M+20.3%617K4.20
    28 June 20242.2M-35.9%3.1M1.00
    14 June 20243.4M-4.0%1.5M2.21
    31 May 20243.5M-4.5%814K4.30
    15 May 20243.7M-5.6%945K3.88
    30 April 20243.9M+17.0%544K7.14
    15 April 20243.3M+43.5%726K4.57
    28 March 20242.3M-21.1%700K3.30
    15 March 20242.9M-5.5%884K3.31
    29 February 20243.1M+16.2%901K3.44
    15 February 20242.7M+21.6%743K3.59
    31 January 20242.2M-1.4%621K3.53
    12 January 20242.2M-10.3%651K3.42
    29 December 20232.5M-19.6%693K3.58
    15 December 20233.1M-2.7%1.5M2.06
    30 November 20233.2M+13.4%957K3.31
    15 November 20232.8M+1.6%1.4M2.01
    31 October 20232.7M+0.7%714K3.85
    13 October 20232.7M+5.1%739K3.70
    29 September 20232.6M+4.2%721K3.60
    15 September 20232.5M+3.0%824K3.02
    31 August 20232.4M+14.7%667K3.63
    15 August 20232.1M-24.0%1.4M1.55
    31 July 20232.8M-0.9%594K4.67
    14 July 20232.8M-2.6%639K4.38
    30 June 20232.9M+4.4%1.2M2.41
    15 June 20232.8M+18.7%1.1M2.52
    31 May 20232.3M+29.4%885K2.62
    15 May 20231.8M-14.6%1.0M1.78
    28 April 20232.1M-2.5%995K2.11
    14 April 20232.2M+2.1%1.5M1.45
    31 March 20232.1M-6.6%503K4.19
    15 March 20232.3M+1.6%437K5.16
    28 February 20232.2M-0.1%802K2.77
    15 February 20232.2M+2.9%589K3.77
    31 January 20232.2M-9.1%496K4.36
    13 January 20232.4M-5.2%412K5.77
    30 December 20222.5M+15.9%569K4.40
    15 December 20222.2M-2.4%466K4.64
    30 November 20222.2M+4.2%395K5.60
    15 November 20222.1M-11.4%783K2.71
    31 October 20222.4M-7.6%559K4.29
    14 October 20222.6M+9.5%521K4.98
    30 September 20222.4M+10.5%1.0M2.30
    15 September 20222.1M+11.6%896K2.39
    31 August 20221.9M-15.2%471K4.08
    15 August 20222.3M-28.6%829K2.73
    29 July 20223.2M-10.0%1.2M2.72
    15 July 20223.5M+84.0%2.2M1.64
    30 June 20221.9M-11.8%489K3.92
    15 June 20222.2M-2.4%283K7.67
    31 May 20222.2M+4.1%303K7.36
    13 May 20222.1M+12.5%488K4.39
    29 April 20221.9M-3.6%337K5.64
    14 April 20222.0M-1.7%401K4.92
    31 March 20222.0M-3.7%484K4.15
    15 March 20222.1M+1.5%336K6.20
    28 February 20222.1M-8.7%302K6.80
    15 February 20222.2M-1.4%630K3.57
    31 January 20222.3M-4.5%788K2.90
    14 January 20222.4M+29.0%545K4.38
    31 December 20211.9M+5.2%488K3.79
    15 December 20211.8M+16.4%386K4.56
    30 November 20211.5M-5.2%375K4.03
    15 November 20211.6M-3.3%345K4.62
    29 October 20211.6M+11.0%340K4.85
    15 October 20211.5M-1.0%243K6.11
    30 September 20211.5M-0.1%368K4.08
    15 September 20211.5M+17.6%384K3.91
    31 August 20211.3M-3.2%564K2.27
    13 August 20211.3M+17.9%360K3.66
    30 July 20211.1M+24.9%375K2.98
    15 July 2021896K-6.3%199K4.49
    30 June 2021956K-0.5%248K3.85
    15 June 2021961K-11.7%217K4.43
    28 May 20211.1M+5.2%166K6.56
    14 May 20211.0M-4.9%273K3.80
    30 April 20211.1M-10.9%139K7.84
    15 April 20211.2M+1.6%162K7.56
    31 March 20211.2M-17.5%296K4.06
    15 March 20211.5M+2.5%237K6.15
    26 February 20211.4M-7.5%326K4.36
    12 February 20211.5M-1.1%336K4.58
    29 January 20211.6M+12.9%308K5.05
    15 January 20211.4M+4.2%227K6.07
    31 December 20201.3M+35.4%276K4.78
    15 December 2020975K+21.9%367K2.66
    30 November 2020800K-12.7%185K4.33
    13 November 2020916K-9.6%358K2.56
    30 October 20201.0M-5.5%255K3.97
    15 October 20201.1M+8.0%176K6.09
    30 September 2020992K-1.7%232K4.28
    15 September 20201.0M-2.6%222K4.54
    31 August 20201.0M+1.8%191K5.43
    14 August 20201.0M+2.2%306K3.33
    31 July 2020996K+17.0%312K3.19
    15 July 2020852K+3.6%236K3.61
    30 June 2020823K-4.0%411K2.00
    15 June 2020857K-8.2%372K2.30
    29 May 2020934K+0.7%262K3.56
    15 May 2020927K+22.4%447K2.08
    30 April 2020758K-29.3%339K2.23
    15 April 20201.1M+28.2%386K2.78
    31 March 2020836K-1.5%486K1.72
    13 March 2020849K-24.6%322K2.64
    28 February 20201.1M+68.6%364K3.10
    14 February 2020668K+1.4%290K2.31
    31 January 2020658K-29.4%197K3.33
    15 January 2020932K+14.7%153K6.08
    31 December 2019812K+0.8%232K3.51
    13 December 2019806K+8.7%230K3.50
    29 November 2019742K-1.0%224K3.31
    15 November 2019749K+17.3%272K2.76
    31 October 2019639K-22.1%255K2.50
    15 October 2019820K-3.4%437K1.88
    30 September 2019849K-0.2%229K3.71
    13 September 2019851K+12.4%302K2.82
    30 August 2019757K-3.8%243K3.12
    15 August 2019788K+65.6%244K3.22
    31 July 2019476K-46.6%669K1.00
    15 July 2019890K-15.2%221K4.02
    28 June 20191.0M-5.7%319K3.29
    14 June 20191.1M-8.5%313K3.55
    31 May 20191.2M-19.8%444K2.74
    15 May 20191.5M+37.6%514K2.95
    30 April 20191.1M-8.4%632K1.74
    15 April 20191.2M-6.9%282K4.27
    29 March 20191.3M-3.1%248K5.21
    15 March 20191.3M+8.9%290K4.59
    28 February 20191.2M+10.0%543K2.25
    15 February 20191.1M+6.6%294K3.78
    31 January 20191.0M+8.9%544K1.92
    15 January 2019957K+3.5%353K2.71
    31 December 2018925K+6.0%461K2.01
    14 December 2018873K-7.5%302K2.89
    30 November 2018943K-6.2%206K4.58
    15 November 20181.0M-11.8%281K3.58
    31 October 20181.1M-13.5%634K1.80
    15 October 20181.3M-7.2%242K5.45
    28 September 20181.4M-4.1%309K4.60
    14 September 20181.5M+5.5%263K5.64
    31 August 20181.4M+6.3%204K6.89
    15 August 20181.3M-17.3%217K6.10
    31 July 20181.6M+9.8%589K2.72
    13 July 20181.5M+1.4%217K6.72
    29 June 20181.4M-1.4%334K4.29
    15 June 20181.5M-2.2%384K3.79
    31 May 20181.5M-10.5%369K4.03
    15 May 20181.7M+4.8%368K4.52
    30 April 20181.6M+19.0%668K2.37
    13 April 20181.3M-0.0%362K3.68
    29 March 20181.3M+65.1%521K2.56
    15 March 2018807K+7.0%497K1.62
    28 February 2018754K-20.9%702K1.07
    15 February 2018953K-24.2%690K1.38
    31 January 20181.3M+95.7%837K1.50
    12 January 2018642K-21.8%475K1.35
    29 December 2017822K398K2.06
    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.