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Stock research / United States / PUBM / Short interest

PubMatic, Inc. short interest

3.1M shares of PubMatic were sold short at the 15 October 2026 settlement, the most since 31 Aug 2022. Short sellers would need 4.7 days of normal trading to buy them back.

Shares sold short3.1Mat 15 Oct 2026
Change on the settlement before+13.0%+32% over a year
Days to cover4.69at 655K shares a day
Of shares in issuen/a
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 most since 31 Aug 2022, and the share price moved +106% 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 15 Dec 2020 as a table
    SettlementShares shortChangeAverage daily volumeDays to cover
    15 October 20263.1M+13.0%655K4.69
    30 September 20262.7M+11.5%854K3.19
    15 September 20262.4M+7.7%571K4.27
    31 August 20262.3M+9.4%627K3.61
    14 August 20262.1M-7.9%1.1M1.97
    31 July 20262.2M-23.7%428K5.26
    15 July 20262.9M-1.7%437K6.74
    30 June 20263.0M+7.9%637K4.71
    15 June 20262.8M+7.7%608K4.57
    29 May 20262.6M+1.6%709K3.64
    15 May 20262.5M+15.2%863K2.94
    30 April 20262.2M+15.2%571K3.86
    15 April 20261.9M-0.4%620K3.08
    31 March 20261.9M+13.1%692K2.77
    13 March 20261.7M-5.7%977K1.74
    27 February 20261.8M-2.8%816K2.21
    13 February 20261.9M+12.2%804K2.30
    30 January 20261.6M-7.1%522K3.16
    15 January 20261.8M-8.7%527K3.37
    31 December 20251.9M-10.7%426K4.56
    15 December 20252.2M-11.4%582K3.74
    28 November 20252.5M-10.2%719K3.41
    14 November 20252.7M+12.8%1.7M1.65
    31 October 20252.4M+4.4%518K4.68
    15 October 20252.3M+12.2%731K3.17
    30 September 20252.1M+11.3%528K3.92
    15 September 20251.9M+6.6%523K3.55
    29 August 20251.7M-7.3%696K2.51
    15 August 20251.9M+21.2%1.1M1.77
    31 July 20251.6M-7.9%497K3.12
    15 July 20251.7M+5.2%506K3.33
    30 June 20251.6M-16.8%680K2.35
    13 June 20251.9M+6.8%532K3.62
    30 May 20251.8M+10.2%561K3.21
    15 May 20251.6M+2.9%734K2.23
    30 April 20251.6M+11.6%582K2.73
    15 April 20251.4M-0.4%599K2.38
    31 March 20251.4M-2.6%578K2.48
    14 March 20251.5M+35.3%807K1.82
    28 February 20251.1M+14.6%572K1.90
    14 February 2025947K-11.9%346K2.74
    31 January 20251.1M-2.7%290K3.71
    15 January 20251.1M+4.1%303K3.65
    31 December 20241.1M+1.6%269K3.95
    13 December 20241.0M-6.2%318K3.28
    29 November 20241.1M-13.6%463K2.41
    15 November 20241.3M-5.5%487K2.65
    31 October 20241.4M-2.2%261K5.22
    15 October 20241.4M+1.8%323K4.32
    30 September 20241.4M+2.1%366K3.74
    13 September 20241.3M-3.7%386K3.48
    30 August 20241.4M-8.4%631K2.21
    15 August 20241.5M+0.4%1.0M1.50
    31 July 20241.5M-10.0%280K5.41
    15 July 20241.7M-2.5%366K4.60
    28 June 20241.7M-4.5%631K2.74
    14 June 20241.8M+10.0%366K4.94
    31 May 20241.6M-2.1%463K3.55
    15 May 20241.7M+4.7%437K3.84
    30 April 20241.6M-8.1%275K5.82
    15 April 20241.7M+22.1%350K4.99
    28 March 20241.4M+1.1%421K3.39
    15 March 20241.4M+23.6%716K1.97
    29 February 20241.1M-4.0%1.1M1.07
    15 February 20241.2M+8.9%299K3.98
    31 January 20241.1M-3.4%351K3.11
    12 January 20241.1M-7.1%303K3.73
    29 December 20231.2M-0.7%324K3.75
    15 December 20231.2M+14.0%397K3.09
    30 November 20231.1M+6.6%326K3.30
    15 November 20231.0M-4.6%542K1.86
    31 October 20231.1M-7.5%246K4.30
    13 October 20231.1M-21.4%246K4.64
    29 September 20231.5M+5.4%267K5.45
    15 September 20231.4M-14.7%367K3.76
    31 August 20231.6M+7.9%469K3.45
    15 August 20231.5M+26.0%734K2.04
    31 July 20231.2M-8.9%219K5.43
    14 July 20231.3M-5.5%299K4.37
    30 June 20231.4M-1.0%398K3.47
    15 June 20231.4M+7.6%397K3.52
    31 May 20231.3M-26.2%497K2.61
    15 May 20231.8M+1.3%800K2.20
    28 April 20231.7M-14.0%327K5.32
    14 April 20232.0M+6.1%336K6.02
    31 March 20231.9M-6.9%358K5.31
    15 March 20232.0M+2.0%710K2.88
    28 February 20232.0M+1.3%567K3.54
    15 February 20232.0M+0.2%383K5.16
    31 January 20232.0M-2.8%337K5.86
    13 January 20232.0M-2.4%418K4.86
    30 December 20222.1M-7.9%540K3.85
    15 December 20222.3M-2.6%522K4.33
    30 November 20222.3M-4.4%341K6.80
    15 November 20222.4M-3.0%742K3.27
    31 October 20222.5M-0.2%472K5.30
    14 October 20222.5M+6.7%552K4.54
    30 September 20222.3M-12.0%592K3.96
    15 September 20222.7M-16.7%607K4.40
    31 August 20223.2M-7.3%496K6.46
    15 August 20223.5M-16.6%1.0M3.38
    29 July 20224.1M-12.2%655K6.33
    15 July 20224.7M-5.7%724K6.52
    30 June 20225.0M+53.8%1.6M3.16
    15 June 20223.3M+14.7%710K4.58
    31 May 20222.8M+10.6%902K3.15
    13 May 20222.6M-0.1%1.1M2.26
    29 April 20222.6M+14.0%839K3.06
    14 April 20222.3M-5.2%756K2.98
    31 March 20222.4M+10.3%760K3.13
    15 March 20222.2M+1.2%1.3M1.63
    28 February 20222.1M+10.4%1.0M2.11
    15 February 20221.9M+12.6%1.1M1.79
    31 January 20221.7M+13.9%1.1M1.53
    14 January 20221.5M+14.3%1.1M1.39
    31 December 20211.3M-36.6%881K1.50
    15 December 20212.1M-14.3%1.6M1.28
    30 November 20212.4M+3.0%2.2M1.11
    15 November 20212.4M+2.9%2.7M1.00
    29 October 20212.3M+2.2%737K3.10
    15 October 20212.2M-20.9%1.4M1.62
    30 September 20212.8M+18.6%889K3.18
    15 September 20212.4M-6.0%752K3.17
    31 August 20212.5M-9.1%1.0M2.51
    13 August 20212.8M+3.4%1.2M2.31
    30 July 20212.7M+2.9%857K3.15
    15 July 20212.6M+0.6%1.1M2.35
    30 June 20212.6M-8.9%1.6M1.65
    15 June 20212.9M-24.4%2.5M1.15
    28 May 20213.8M+9.5%628K6.03
    14 May 20213.5M+6.5%625K5.52
    30 April 20213.2M+10.7%372K8.70
    15 April 20212.9M-2.4%509K5.75
    31 March 20213.0M+23.6%598K5.02
    15 March 20212.4M+23.4%873K2.78
    26 February 20212.0M+4.3%816K2.41
    12 February 20211.9M+24.5%638K2.96
    29 January 20211.5M+11.0%637K2.38
    15 January 20211.4M+24.5%607K2.25
    31 December 20201.1M+243.3%714K1.53
    15 December 2020319K1.0M1.00
    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.