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PubMatic, Inc. (PUBM) short interest & options flow

NASDAQ

PUBM heads into its Q3 earnings tonight with short sellers adding positions into a stock that has already rallied sharply, creating an unusual tension between momentum and growing bearish conviction. The sharpest signal is in the short interest trend. Bears have added meaningfully over the past month, with short interest climbing 28% to 8.7% of the free float. That build has…

Latest pulse19 Oct 2026

PUBM cost to borrow surges to 1.53%, up 168% in one week as short interest climbs 7.6% over the same period.

$16.95-10.90% 1d+4.98% 1w-9.04% 1mClose: 10 Nov 2026
Cost to borrow
Low
Live CTB on ORTEX →
Market cap
$839M
Next earnings
26 Feb 2027
See the full picture on ORTEX →Live short interest, options flow, signals, 13F filings, and more.

Key data as of 12 Nov 2026

ORTEX chart of PubMatic, Inc. (PUBM) share price and short interest (% of free float), six months to November 10, 2026

Latest signals on PUBM

  • Cost to Borrow

    PUBM cost to borrow surges to 1.53%, up 168% in one week as short interest climbs 7.6% over the same period.

PUBM news and analysis

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