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Stock research / United States / PTC / Short interest

PTC Inc. short interest

4.8M shares of PTC were sold short at the 15 October 2026 settlement, the fewest since 15 Jun 2026. Short sellers would need 1.0 days of normal trading to buy them back.

Shares sold short4.8Mat 15 Oct 2026
Change on the settlement before-12.5%+89% over a year
Days to cover1.00at 6.3M shares a day
Of shares in issue4.33%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 the fewest since 15 Jun 2026, and the share price moved -4% 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 20264.8M-12.5%6.3M1.00
    30 September 20265.5M-7.8%1.7M3.20
    15 September 20265.9M+4.4%1.6M3.77
    31 August 20265.7M-2.1%1.1M5.23
    14 August 20265.8M-11.0%1.3M4.59
    31 July 20266.5M+10.0%1.8M3.63
    15 July 20265.9M+10.1%1.5M3.98
    30 June 20265.4M+13.4%2.4M2.21
    15 June 20264.8M-0.2%2.0M2.37
    29 May 20264.8M+15.6%1.6M3.07
    15 May 20264.1M+6.5%1.7M2.45
    30 April 20263.9M-9.8%1.1M3.67
    15 April 20264.3M+0.3%1.1M3.78
    31 March 20264.3M+4.0%1.2M3.55
    13 March 20264.1M+2.9%996K4.14
    27 February 20264.0M+6.0%1.0M3.89
    13 February 20263.8M+24.6%1.7M2.23
    30 January 20263.0M-10.8%921K3.29
    15 January 20263.4M-7.3%827K4.11
    31 December 20253.7M+2.9%734K5.00
    15 December 20253.6M+8.9%933K3.82
    28 November 20253.3M-0.5%847K3.86
    14 November 20253.3M+29.7%1.2M2.65
    31 October 20252.5M+0.2%634K4.00
    15 October 20252.5M-11.1%646K3.92
    30 September 20252.8M-1.1%857K3.33
    15 September 20252.9M-6.1%827K3.48
    29 August 20253.1M+8.8%771K3.97
    15 August 20252.8M-14.7%929K3.03
    31 July 20253.3M-24.2%1.0M3.19
    15 July 20254.4M+3.3%2.0M2.15
    30 June 20254.2M+8.6%1.0M4.18
    13 June 20253.9M+14.5%733K5.30
    30 May 20253.4M+16.3%816K4.15
    15 May 20252.9M+19.2%949K3.07
    30 April 20252.4M+2.6%845K2.89
    15 April 20252.4M-4.3%1.1M2.16
    31 March 20252.5M+0.3%916K2.72
    14 March 20252.5M-5.0%1.2M2.14
    28 February 20252.6M+9.9%1.1M2.33
    14 February 20252.4M+35.4%1.6M1.46
    31 January 20251.8M-26.8%932K1.88
    15 January 20252.4M+17.8%756K3.17
    31 December 20242.0M+1.0%772K2.64
    13 December 20242.0M+4.6%608K3.32
    29 November 20241.9M-8.9%749K2.57
    15 November 20242.1M-17.1%1.1M2.01
    31 October 20242.6M-12.8%586K4.35
    15 October 20242.9M-3.5%562K5.20
    30 September 20243.0M+6.3%676K4.48
    13 September 20242.9M-1.1%903K3.16
    30 August 20242.9M-5.3%692K4.16
    15 August 20243.0M+25.7%854K3.56
    31 July 20242.4M-15.1%856K2.83
    15 July 20242.8M-0.9%937K3.04
    28 June 20242.9M-1.1%832K3.45
    14 June 20242.9M-0.2%650K4.47
    31 May 20242.9M+31.4%764K3.81
    15 May 20242.2M+12.5%916K2.42
    30 April 20242.0M-12.9%737K2.67
    15 April 20242.3M+1.8%681K3.32
    28 March 20242.2M+33.1%664K3.34
    15 March 20241.7M-18.3%716K2.33
    29 February 20242.0M+20.5%1.0M1.96
    15 February 20241.7M+22.7%1.0M1.69
    31 January 20241.4M-3.4%851K1.62
    12 January 20241.4M-7.7%864K1.66
    29 December 20231.6M-29.7%531K2.92
    15 December 20232.2M+13.1%955K2.31
    30 November 20232.0M-17.0%763K2.56
    15 November 20232.4M+3.3%813K2.89
    31 October 20232.3M-5.1%681K3.34
    13 October 20232.4M-0.7%584K4.11
    29 September 20232.4M+71.7%707K3.42
    15 September 20231.4M+25.7%894K1.57
    31 August 20231.1M-23.9%619K1.81
    15 August 20231.5M+0.9%1.1M1.30
    31 July 20231.5M+14.7%757K1.93
    14 July 20231.3M-18.6%621K2.05
    30 June 20231.6M+22.5%884K1.77
    15 June 20231.3M+7.1%648K1.97
    31 May 20231.2M-11.4%995K1.20
    15 May 20231.3M+16.0%573K2.35
    28 April 20231.2M-12.9%913K1.27
    14 April 20231.3M-15.0%502K2.65
    31 March 20231.6M+0.3%622K2.52
    15 March 20231.6M+12.3%805K1.94
    28 February 20231.4M-7.9%642K2.17
    15 February 20231.5M+3.2%869K1.74
    31 January 20231.5M-0.4%646K2.26
    13 January 20231.5M-0.8%683K2.15
    30 December 20221.5M-0.9%519K2.85
    15 December 20221.5M+9.8%689K2.17
    30 November 20221.4M-35.1%743K1.83
    15 November 20222.1M+0.0%1.2M1.69
    31 October 20222.1M-10.2%555K3.78
    14 October 20222.3M-6.4%619K3.77
    30 September 20222.5M+11.6%702K3.55
    15 September 20222.2M+13.6%1.0M2.17
    31 August 20222.0M-5.5%694K2.84
    15 August 20222.1M+14.0%706K2.95
    29 July 20221.8M+7.4%796K2.30
    15 July 20221.7M-14.9%538K3.16
    30 June 20222.0M-20.9%789K2.53
    15 June 20222.5M-4.8%587K4.30
    31 May 20222.7M-6.7%712K3.73
    13 May 20222.8M+6.8%982K2.90
    29 April 20222.7M+13.0%1.1M2.42
    14 April 20222.4M+2.0%639K3.69
    31 March 20222.3M-14.5%645K3.58
    15 March 20222.7M+1.3%527K5.12
    28 February 20222.7M-2.1%723K3.68
    15 February 20222.7M-1.1%553K4.92
    31 January 20222.8M+15.1%1.1M2.60
    14 January 20222.4M-5.1%581K4.12
    31 December 20212.5M-3.6%664K3.80
    15 December 20212.6M+5.2%995K2.63
    30 November 20212.5M-2.1%1.0M2.37
    15 November 20212.5M-8.3%924K2.75
    29 October 20212.8M+15.7%661K4.19
    15 October 20212.4M+29.0%660K3.63
    30 September 20211.9M+9.0%630K2.95
    15 September 20211.7M+12.4%986K1.73
    31 August 20211.5M-2.9%567K2.67
    13 August 20211.6M-4.6%583K2.68
    30 July 20211.6M+4.8%805K2.03
    15 July 20211.6M-1.1%483K3.23
    30 June 20211.6M-5.3%559K2.82
    15 June 20211.7M+1.1%405K4.10
    28 May 20211.6M+0.3%527K3.12
    14 May 20211.6M-20.6%696K2.36
    30 April 20212.1M+33.7%2.9M1.00
    15 April 20211.5M-16.2%489K3.15
    31 March 20211.8M+2.5%672K2.74
    15 March 20211.8M+19.1%714K2.52
    26 February 20211.5M-0.1%530K2.85
    12 February 20211.5M+8.4%589K2.57
    29 January 20211.4M-12.2%1.0M1.36
    15 January 20211.6M+10.2%679K2.34
    31 December 20201.4M-14.0%578K2.49
    15 December 20201.7M-14.2%527K3.18
    30 November 20202.0M-8.0%546K3.58
    13 November 20202.1M+9.8%692K3.07
    30 October 20201.9M+16.8%796K2.43
    15 October 20201.7M-9.5%635K2.61
    30 September 20201.8M+2.1%756K2.42
    15 September 20201.8M+1.0%888K2.02
    31 August 20201.8M-1.7%595K2.98
    14 August 20201.8M+12.0%496K3.64
    31 July 20201.6M-18.7%655K2.46
    15 July 20202.0M-5.7%801K2.48
    30 June 20202.1M+3.9%593K3.55
    15 June 20202.0M+7.9%720K2.81
    29 May 20201.9M-1.3%553K3.39
    15 May 20201.9M-14.9%797K2.38
    30 April 20202.2M-7.8%721K3.09
    15 April 20202.4M-20.8%762K3.17
    31 March 20203.1M-8.8%1.5M2.02
    13 March 20203.4M+16.2%1.6M2.12
    28 February 20202.9M-9.7%785K3.68
    14 February 20203.2M-5.9%415K7.70
    31 January 20203.4M+6.0%1.0M3.24
    15 January 20203.2M-4.1%446K7.17
    31 December 20193.3M-4.7%581K5.75
    13 December 20193.5M+1.4%500K7.01
    29 November 20193.5M-12.3%777K4.45
    15 November 20193.9M+4.7%888K4.44
    31 October 20193.8M-22.0%1.6M2.35
    15 October 20194.8M+1.6%911K5.30
    30 September 20194.8M-7.7%741K6.41
    13 September 20195.1M-5.8%1.0M5.05
    30 August 20195.5M-4.0%1.1M4.99
    15 August 20195.7M-8.7%1.5M3.89
    31 July 20196.2M-18.2%2.2M2.77
    15 July 20197.6M+0.4%778K9.79
    28 June 20197.6M+3.8%983K7.72
    14 June 20197.3M+4.9%964K7.59
    31 May 20197.0M+20.3%848K8.23
    15 May 20195.8M+2.3%1.2M4.95
    30 April 20195.7M+14.7%1.7M3.38
    15 April 20194.9M+6.6%942K5.25
    29 March 20194.6M+12.3%1.0M4.62
    15 March 20194.1M-1.2%1.1M3.88
    28 February 20194.2M-1.3%858K4.87
    15 February 20194.2M+10.1%1.2M3.60
    31 January 20193.8M-18.9%1.9M2.03
    15 January 20194.7M-13.2%945K5.02
    31 December 20185.5M-21.0%1.1M4.96
    14 December 20186.9M-2.2%1.3M5.18
    30 November 20187.1M-17.3%1.9M3.69
    15 November 20188.6M+11.3%1.2M6.86
    31 October 20187.7M-2.2%2.0M3.93
    15 October 20187.9M-9.3%1.3M6.17
    28 September 20188.7M-10.0%1.2M7.46
    14 September 20189.6M-1.8%1.2M8.35
    31 August 20189.8M-2.7%723K13.57
    15 August 201810.1M-9.6%810K12.44
    31 July 201811.1M+296.8%1.1M9.80
    13 July 20182.8M+11.3%674K4.17
    29 June 20182.5M-14.2%1.2M2.16
    15 June 20182.9M-3.5%1.1M2.74
    31 May 20183.0M-6.9%850K3.58
    15 May 20183.3M-8.1%860K3.81
    30 April 20183.6M-2.3%1.2M3.00
    13 April 20183.6M-4.9%1.1M3.30
    29 March 20183.8M+9.7%966K3.97
    15 March 20183.5M+1.8%826K4.23
    28 February 20183.4M+12.5%584K5.87
    15 February 20183.1M+3.7%830K3.67
    31 January 20182.9M-17.5%1.4M2.05
    12 January 20183.6M+6.5%767K4.65
    29 December 20173.3M841K3.98
    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.