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Stock research / United States / TER / Short interest

Teradyne, Inc. short interest

7.9M shares of Teradyne were sold short at the 15 October 2026 settlement, near the middle of its range over the last year (4.6M to 9.1M). Short sellers would need 2.9 days of normal trading to buy them back.

Shares sold short7.9Mat 15 Oct 2026
Change on the settlement before-9.0%-13% over a year
Days to cover2.91at 2.7M shares a day
Of shares in issue5.03%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 (4.6M to 9.1M), and the share price moved +55% 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 20267.9M-9.0%2.7M2.91
    30 September 20268.6M+6.6%2.4M3.67
    15 September 20268.1M+15.3%2.5M3.20
    31 August 20267.0M+2.6%2.4M2.87
    14 August 20266.8M-14.7%2.7M2.57
    31 July 20268.0M+10.0%4.2M1.90
    15 July 20267.3M-20.0%3.8M1.94
    30 June 20269.1M+3.1%6.9M1.33
    15 June 20268.9M+28.6%3.8M2.31
    29 May 20266.9M+12.4%3.5M1.96
    15 May 20266.1M+13.4%3.8M1.61
    30 April 20265.4M+10.3%4.1M1.33
    15 April 20264.9M+0.6%3.0M1.64
    31 March 20264.9M-5.9%3.1M1.57
    13 March 20265.2M+12.1%3.6M1.44
    27 February 20264.6M-2.1%2.8M1.67
    13 February 20264.7M+2.1%5.3M1.00
    30 January 20264.6M-6.8%2.7M1.69
    15 January 20265.0M+3.2%2.9M1.69
    31 December 20254.8M-17.2%2.6M1.84
    15 December 20255.8M+5.3%2.9M1.97
    28 November 20255.5M-4.8%3.5M1.59
    14 November 20255.8M-34.1%3.4M1.68
    31 October 20258.8M-2.8%4.0M2.22
    15 October 20259.0M-12.5%3.2M2.79
    30 September 202510.3M-2.3%4.2M2.45
    15 September 202510.6M+49.1%3.9M2.70
    29 August 20257.1M-3.4%3.2M2.22
    15 August 20257.3M-7.8%3.9M1.88
    31 July 20258.0M+0.0%5.2M1.52
    15 July 20258.0M+14.9%3.7M2.17
    30 June 20256.9M+8.9%4.1M1.71
    13 June 20256.4M+0.2%2.6M2.41
    30 May 20256.3M-11.4%2.4M2.69
    15 May 20257.2M+0.4%2.8M2.53
    30 April 20257.1M+5.2%3.8M1.88
    15 April 20256.8M+43.0%4.9M1.39
    31 March 20254.7M-19.4%3.0M1.58
    14 March 20255.9M-12.9%4.7M1.25
    28 February 20256.8M+18.2%2.5M2.68
    14 February 20255.7M+1.9%2.2M2.63
    31 January 20255.6M-14.7%3.4M1.63
    15 January 20256.6M-6.2%2.1M3.06
    31 December 20247.0M+25.0%2.6M2.73
    13 December 20245.6M+24.6%2.7M2.08
    29 November 20244.5M+28.9%2.0M2.26
    15 November 20243.5M-12.9%2.1M1.63
    31 October 20244.0M-15.8%2.8M1.42
    15 October 20244.8M+6.7%1.4M3.30
    30 September 20244.5M+7.3%1.8M2.46
    13 September 20244.2M+6.2%1.8M2.34
    30 August 20243.9M+4.1%1.5M2.65
    15 August 20243.8M-14.9%2.2M1.75
    31 July 20244.4M-15.4%2.8M1.56
    15 July 20245.2M-4.8%1.5M3.55
    28 June 20245.5M-7.9%2.6M2.07
    14 June 20246.0M+3.7%1.6M3.63
    31 May 20245.7M+28.4%2.3M2.49
    15 May 20244.5M+7.1%2.3M1.94
    30 April 20244.2M-20.0%2.9M1.42
    15 April 20245.2M-7.4%1.5M3.37
    28 March 20245.6M+4.0%1.9M2.95
    15 March 20245.4M+1.9%1.7M3.14
    29 February 20245.3M+6.8%1.5M3.44
    15 February 20245.0M+12.9%1.8M2.78
    31 January 20244.4M-5.7%2.2M2.02
    12 January 20244.7M+7.7%1.5M3.21
    29 December 20234.3M-7.4%1.5M2.97
    15 December 20234.7M+25.5%1.9M2.47
    30 November 20233.7M-1.8%1.4M2.72
    15 November 20233.8M-4.1%1.8M2.16
    31 October 20234.0M-4.6%1.8M2.21
    13 October 20234.2M-1.2%1.2M3.58
    29 September 20234.2M-14.1%1.4M3.01
    15 September 20234.9M+4.1%1.7M2.89
    31 August 20234.7M-12.3%1.2M3.84
    15 August 20235.4M+6.1%1.5M3.49
    31 July 20235.1M-8.5%2.1M2.45
    14 July 20235.5M+1.7%1.5M3.64
    30 June 20235.4M+26.0%2.0M2.76
    15 June 20234.3M+6.7%1.6M2.76
    31 May 20234.0M+15.6%2.1M1.93
    15 May 20233.5M+4.7%1.5M2.38
    28 April 20233.3M-3.6%1.7M2.01
    14 April 20233.5M-11.7%1.3M2.66
    31 March 20233.9M-2.1%1.5M2.54
    15 March 20234.0M+5.7%1.7M2.36
    28 February 20233.8M-5.8%1.5M2.60
    15 February 20234.0M-7.0%1.7M2.39
    31 January 20234.3M+7.2%2.0M2.20
    13 January 20234.0M+8.0%1.3M3.09
    30 December 20223.7M-29.8%1.4M2.64
    15 December 20225.3M+14.9%1.6M3.35
    30 November 20224.6M+14.4%1.4M3.40
    15 November 20224.0M+8.8%1.7M2.32
    31 October 20223.7M-4.2%2.1M1.81
    14 October 20223.9M+9.4%1.9M2.00
    30 September 20223.6M-4.1%1.8M1.93
    15 September 20223.7M-7.2%1.8M2.10
    31 August 20224.0M-9.1%1.6M2.54
    15 August 20224.4M-3.4%1.6M2.68
    29 July 20224.5M+3.2%2.2M2.10
    15 July 20224.4M+0.4%1.4M3.19
    30 June 20224.4M+13.2%2.3M1.89
    15 June 20223.9M+8.3%1.5M2.50
    31 May 20223.6M-1.1%1.6M2.24
    13 May 20223.6M-4.5%1.7M2.11
    29 April 20223.8M-4.7%2.0M1.85
    14 April 20224.0M-2.7%1.5M2.62
    31 March 20224.1M+9.3%1.8M2.28
    15 March 20223.7M-31.9%1.7M2.19
    28 February 20225.5M-5.0%1.6M3.51
    15 February 20225.8M-0.8%1.9M3.00
    31 January 20225.8M+11.6%4.1M1.44
    14 January 20225.2M-6.4%1.4M3.68
    31 December 20215.6M+32.4%1.5M3.67
    15 December 20214.2M+17.3%1.4M2.98
    30 November 20213.6M-11.4%1.3M2.84
    15 November 20214.1M-11.0%1.3M3.03
    29 October 20214.6M-7.9%1.9M2.40
    15 October 20215.0M+22.7%1.5M3.30
    30 September 20214.0M+11.8%1.8M2.19
    15 September 20213.6M+20.9%1.1M3.42
    31 August 20213.0M-19.1%1.2M2.56
    13 August 20213.7M-8.2%1.0M3.65
    30 July 20214.0M+18.6%1.5M2.76
    15 July 20213.4M-5.1%1.4M2.42
    30 June 20213.6M-18.8%1.5M2.40
    15 June 20214.4M+6.7%1.2M3.61
    28 May 20214.1M-18.3%1.2M3.53
    14 May 20215.0M+3.3%1.4M3.63
    30 April 20214.9M-7.4%1.4M3.51
    15 April 20215.3M-0.6%1.4M3.72
    31 March 20215.3M-10.5%2.1M2.57
    15 March 20215.9M-5.2%2.4M2.48
    26 February 20216.3M+4.1%2.0M3.21
    12 February 20216.0M-12.0%2.1M2.86
    29 January 20216.8M-18.1%1.7M3.97
    15 January 20218.3M-3.1%1.4M5.89
    31 December 20208.6M-1.1%1.2M7.41
    15 December 20208.7M-0.3%1.3M6.62
    30 November 20208.7M-0.2%1.2M7.48
    13 November 20208.7M+10.4%1.6M5.46
    30 October 20207.9M-12.5%1.6M4.94
    15 October 20209.1M-4.3%1.2M7.67
    30 September 20209.5M+3.6%4.2M2.24
    15 September 20209.1M+0.6%2.4M3.83
    31 August 20209.1M+1.9%1.1M8.10
    14 August 20208.9M+1.0%1.6M5.72
    31 July 20208.8M-4.9%2.0M4.33
    15 July 20209.3M-11.0%1.7M5.49
    30 June 202010.4M-8.2%2.3M4.47
    15 June 202011.4M-4.7%2.2M5.28
    29 May 202011.9M+4.3%1.7M6.99
    15 May 202011.4M+12.0%2.0M5.83
    30 April 202010.2M+10.9%2.5M4.13
    15 April 20209.2M+7.7%1.7M5.36
    31 March 20208.5M-13.0%2.4M3.54
    13 March 20209.8M-10.9%2.2M4.51
    28 February 202011.0M+6.0%3.0M3.69
    14 February 202010.4M-2.0%1.4M7.20
    31 January 202010.6M-5.5%3.9M2.73
    15 January 202011.2M+4.1%1.4M7.94
    31 December 201910.8M-7.1%1.4M7.62
    13 December 201911.6M+7.7%1.3M8.72
    29 November 201910.8M+1.9%2.8M3.84
    15 November 201910.6M+0.6%2.0M5.29
    31 October 201910.5M+3.1%2.9M3.65
    15 October 201910.2M+1.1%2.0M5.06
    30 September 201910.1M-1.4%2.0M5.13
    13 September 201910.2M-8.7%2.0M5.21
    30 August 201911.2M+2.0%1.2M9.04
    15 August 201911.0M+7.9%2.9M3.77
    31 July 201910.2M+12.1%3.9M2.61
    15 July 20199.1M+13.6%1.8M5.09
    28 June 20198.0M+1.9%1.8M4.43
    14 June 20197.8M+0.1%1.9M4.19
    31 May 20197.8M-2.9%2.2M3.56
    15 May 20198.1M-3.6%1.8M4.48
    30 April 20198.4M-14.2%3.1M2.72
    15 April 20199.8M-6.6%2.0M4.82
    29 March 201910.5M+9.6%2.2M4.84
    15 March 20199.5M+0.5%1.9M4.98
    28 February 20199.5M-0.7%1.9M5.11
    15 February 20199.6M-12.0%2.1M4.65
    31 January 201910.9M-2.7%3.7M2.98
    15 January 201911.2M+1.0%2.5M4.47
    31 December 201811.1M-9.8%3.2M3.47
    14 December 201812.3M-6.6%2.5M4.97
    30 November 201813.1M+5.4%2.2M5.93
    15 November 201812.5M-8.5%2.1M5.81
    31 October 201813.6M+23.6%4.1M3.28
    15 October 201811.0M+0.8%2.9M3.85
    28 September 201810.9M-4.2%2.3M4.85
    14 September 201811.4M+14.3%2.6M4.45
    31 August 201810.0M-11.0%1.9M5.34
    15 August 201811.2M-10.4%2.2M5.20
    31 July 201812.5M-1.5%3.5M3.59
    13 July 201812.7M-5.0%2.2M5.89
    29 June 201813.4M+0.0%2.4M5.51
    15 June 201813.4M-30.8%2.9M4.60
    31 May 201819.3M+25.4%2.8M6.87
    15 May 201815.4M+9.1%3.9M3.98
    30 April 201814.1M+19.1%6.3M2.25
    13 April 201811.8M+24.9%2.4M4.91
    29 March 20189.5M-8.6%2.1M4.46
    15 March 201810.4M+7.1%2.0M5.29
    28 February 20189.7M+2.7%2.3M4.30
    15 February 20189.4M+3.1%3.2M2.99
    31 January 20189.1M+9.0%3.6M2.57
    12 January 20188.4M+13.5%2.3M3.65
    29 December 20177.4M1.5M4.97
    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.