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

Tenable Holdings, Inc. short interest

15.1M shares of Tenable Holdings were sold short at the 15 October 2026 settlement, near the top of its range over the last year (5.0M to 18.2M). Short sellers would need 4.7 days of normal trading to buy them back.

Shares sold short15.1Mat 15 Oct 2026
Change on the settlement before-3.1%+192% over a year
Days to cover4.66at 3.2M shares a day
Of shares in issue13.75%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 (5.0M to 18.2M), and the share price moved +65% 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 31 Jul 2018 as a table
    SettlementShares shortChangeAverage daily volumeDays to cover
    15 October 202615.1M-3.1%3.2M4.66
    30 September 202615.6M-14.0%3.5M4.47
    15 September 202618.2M+19.7%6.0M3.03
    31 August 202615.2M+44.6%4.6M3.30
    14 August 202610.5M+3.0%2.9M3.63
    31 July 202610.2M-4.1%3.8M2.68
    15 July 202610.6M-4.3%3.8M2.77
    30 June 202611.1M-3.6%3.4M3.23
    15 June 202611.5M-5.0%3.4M3.37
    29 May 202612.1M-22.2%4.2M2.87
    15 May 202615.6M+9.7%3.1M4.98
    30 April 202614.2M-13.3%3.5M4.07
    15 April 202616.4M+11.4%3.6M4.58
    31 March 202614.7M+56.6%3.1M4.75
    13 March 20269.4M+37.3%2.3M4.10
    27 February 20266.8M+14.9%2.9M2.32
    13 February 20266.0M-12.1%4.2M1.41
    30 January 20266.8M+22.4%1.9M3.58
    15 January 20265.5M+11.7%1.5M3.65
    31 December 20255.0M-6.1%1.6M3.06
    15 December 20255.3M-6.7%1.3M4.06
    28 November 20255.7M+4.1%1.0M5.59
    14 November 20255.4M+4.6%1.2M4.63
    31 October 20255.2M+0.3%1.2M4.18
    15 October 20255.2M+5.4%1.2M4.32
    30 September 20254.9M-5.1%1.3M3.79
    15 September 20255.2M+2.4%1.3M4.04
    29 August 20255.1M-8.5%1.4M3.70
    15 August 20255.5M-14.7%1.5M3.63
    31 July 20256.5M-7.8%1.4M4.56
    15 July 20257.0M+14.4%1.5M4.65
    30 June 20256.1M+28.3%2.2M2.76
    13 June 20254.8M+8.2%1.8M2.70
    30 May 20254.4M-2.9%1.1M4.13
    15 May 20254.6M+7.1%2.0M2.34
    30 April 20254.3M-2.4%1.4M2.96
    15 April 20254.4M+8.4%990K4.41
    31 March 20254.0M+6.6%1.2M3.33
    14 March 20253.8M+0.9%1.2M3.13
    28 February 20253.7M-8.3%1.1M3.40
    14 February 20254.1M+11.6%1.4M2.96
    31 January 20253.7M+1.0%1.1M3.23
    15 January 20253.6M-1.4%837K4.33
    31 December 20243.7M+5.8%942K3.90
    13 December 20243.5M-9.5%877K3.96
    29 November 20243.8M+1.5%771K4.97
    15 November 20243.8M-11.8%1.2M3.11
    31 October 20244.3M-4.5%873K4.90
    15 October 20244.5M+10.8%597K7.51
    30 September 20244.0M-10.3%803K5.04
    13 September 20244.5M+2.3%589K7.65
    30 August 20244.4M-3.5%866K5.09
    15 August 20244.6M+1.2%1.2M3.95
    31 July 20244.5M+7.5%1.2M3.74
    15 July 20244.2M+13.9%588K7.13
    28 June 20243.7M+10.4%1.4M2.62
    14 June 20243.3M+2.7%910K3.67
    31 May 20243.3M-8.1%772K4.21
    15 May 20243.5M-13.9%790K4.48
    30 April 20244.1M-12.4%745K5.52
    15 April 20244.7M-5.1%648K7.24
    28 March 20244.9M-5.2%869K5.68
    15 March 20245.2M+2.9%963K5.41
    29 February 20245.1M+18.3%1.0M4.86
    15 February 20244.3M+8.9%1.5M2.86
    31 January 20243.9M+24.6%755K5.20
    12 January 20243.2M-13.4%913K3.45
    29 December 20233.6M+21.9%620K5.86
    15 December 20233.0M+12.6%1.2M2.49
    30 November 20232.7M+14.9%871K3.04
    15 November 20232.3M-19.6%1.3M1.82
    31 October 20232.9M-7.7%594K4.83
    13 October 20233.1M+0.6%735K4.23
    29 September 20233.1M+5.7%619K4.99
    15 September 20232.9M-0.5%665K4.39
    31 August 20232.9M-6.0%545K5.39
    15 August 20233.1M+9.9%706K4.42
    31 July 20232.8M+13.1%1.3M2.17
    14 July 20232.5M-10.6%839K2.99
    30 June 20232.8M+6.5%854K3.29
    15 June 20232.6M-2.7%1.2M2.29
    31 May 20232.7M+0.3%870K3.11
    15 May 20232.7M-24.7%1.0M2.64
    28 April 20233.6M-4.3%1.7M2.17
    14 April 20233.7M-1.5%563K6.66
    31 March 20233.8M-5.6%769K4.95
    15 March 20234.0M+3.9%824K4.89
    28 February 20233.9M-3.6%688K5.64
    15 February 20234.0M+7.2%1.2M3.36
    31 January 20233.8M+0.2%787K4.77
    13 January 20233.7M+6.7%867K4.32
    30 December 20223.5M+18.2%745K4.71
    15 December 20223.0M-3.7%735K4.04
    30 November 20223.1M+2.9%526K5.86
    15 November 20223.0M+14.8%1.1M2.66
    31 October 20222.6M-6.1%1.1M2.45
    14 October 20222.8M+6.7%1.1M2.42
    30 September 20222.6M+1.8%972K2.68
    15 September 20222.6M+10.4%814K3.14
    31 August 20222.3M-2.4%661K3.51
    15 August 20222.4M-20.2%858K2.77
    29 July 20223.0M-17.5%1.4M2.07
    15 July 20223.6M-9.4%993K3.63
    30 June 20224.0M+2.4%1.2M3.24
    15 June 20223.9M+3.0%894K4.35
    31 May 20223.8M+13.6%1.2M3.19
    13 May 20223.3M+24.6%1.4M2.31
    29 April 20222.7M+9.2%1.2M2.23
    14 April 20222.4M+11.2%1.2M2.12
    31 March 20222.2M-10.2%1.4M1.52
    15 March 20222.4M+11.1%1.3M1.89
    28 February 20222.2M-2.6%1.4M1.59
    15 February 20222.3M+37.6%1.0M2.25
    31 January 20221.6M+20.3%955K1.72
    14 January 20221.4M-32.9%1.1M1.30
    31 December 20212.0M-16.6%1.0M1.99
    15 December 20212.4M+74.4%919K2.65
    30 November 20211.4M-25.7%815K1.72
    15 November 20211.9M-35.5%777K2.42
    29 October 20212.9M-12.3%861K3.39
    15 October 20213.3M+2.5%646K5.15
    30 September 20213.2M+13.4%1.1M2.84
    15 September 20212.9M-3.9%893K3.21
    31 August 20213.0M-2.1%634K4.70
    13 August 20213.0M+13.7%1.2M2.50
    30 July 20212.7M+1.7%1.2M2.32
    15 July 20212.6M-8.2%863K3.05
    30 June 20212.9M+1.7%1.4M2.00
    15 June 20212.8M+15.0%789K3.58
    28 May 20212.5M-2.4%786K3.12
    14 May 20212.5M-19.2%990K2.54
    30 April 20213.1M+21.8%1.3M2.49
    15 April 20212.6M+25.9%646K3.96
    31 March 20212.0M-21.9%1.0M2.00
    15 March 20212.6M-26.7%1.3M2.07
    26 February 20213.5M+19.6%1.2M3.03
    12 February 20213.0M+18.9%1.5M1.99
    29 January 20212.5M-6.1%930K2.68
    15 January 20212.7M-6.7%656K4.05
    31 December 20202.8M-9.1%1.4M2.03
    15 December 20203.1M+11.0%546K5.73
    30 November 20202.8M-3.7%744K3.79
    13 November 20202.9M-10.1%773K3.79
    30 October 20203.3M+59.7%985K3.31
    15 October 20202.0M-23.2%693K2.94
    30 September 20202.7M+4.0%772K3.44
    15 September 20202.6M+3.2%996K2.57
    31 August 20202.5M-11.0%759K3.26
    14 August 20202.8M+28.3%1.1M2.55
    31 July 20202.2M-1.5%1.6M1.38
    15 July 20202.2M-6.2%590K3.73
    30 June 20202.3M+25.9%1.6M1.44
    15 June 20201.9M+53.7%825K2.26
    29 May 20201.2M+8.9%803K1.51
    15 May 20201.1M-20.9%526K2.12
    30 April 20201.4M-13.3%444K3.17
    15 April 20201.6M-23.9%399K4.07
    31 March 20202.1M-3.8%617K3.46
    13 March 20202.2M+35.9%604K3.67
    28 February 20201.6M-17.7%531K3.07
    14 February 20202.0M+33.0%609K3.26
    31 January 20201.5M+5.0%576K2.59
    15 January 20201.4M-13.0%752K1.89
    31 December 20191.6M+0.7%590K2.77
    13 December 20191.6M-23.3%624K2.60
    29 November 20192.1M-0.4%314K6.74
    15 November 20192.1M-2.6%408K5.20
    31 October 20192.2M-14.6%767K2.84
    15 October 20192.5M-6.9%626K4.07
    30 September 20192.7M+30.4%846K3.24
    13 September 20192.1M+7.2%786K2.67
    30 August 20192.0M-13.7%417K4.70
    15 August 20192.3M+28.2%718K3.16
    31 July 20191.8M-8.6%596K2.97
    15 July 20191.9M-0.2%336K5.77
    28 June 20191.9M-1.1%889K2.18
    14 June 20192.0M-15.0%718K2.73
    31 May 20192.3M-7.0%1.2M1.98
    15 May 20192.5M+21.5%1.0M2.37
    30 April 20192.0M-27.0%714K2.86
    15 April 20192.8M-2.8%540K5.19
    29 March 20192.9M+44.1%731K3.94
    15 March 20192.0M+46.5%1.1M1.88
    28 February 20191.4M-9.4%785K1.74
    15 February 20191.5M-16.1%905K1.66
    31 January 20191.8M+27.8%410K4.38
    15 January 20191.4M+3.5%374K3.75
    31 December 20181.4M+15.4%399K3.39
    14 December 20181.2M-4.1%160K7.32
    30 November 20181.2M+5.0%204K5.99
    15 November 20181.2M-10.9%219K5.31
    31 October 20181.3M-5.9%343K3.82
    15 October 20181.4M-41.9%591K2.35
    28 September 20182.4M+494.7%1.2M2.03
    14 September 2018403K+38.9%581K1.00
    31 August 2018290K+269.2%307K1.00
    15 August 201879K+512.9%451K1.00
    31 July 201813K1.1M1.00
    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.