Optiver Holding’s PubMatic PUBM Stock Holding History

Optiver Holding’s Portfolio PUBM Stock Details PUBM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$1.6K	Sell	122 -42	-26%	-$436	﹤0.01%	2373
2026 Q1	$1.34K	Buy	164 +22	+15%	+$169	﹤0.01%	1996
2025 Q4	$1.26K	Buy	142 +8	+6%	+$70	﹤0.01%	2165
2025 Q3	$1.11K	Buy	+134	New	+$1.36K	﹤0.01%	2488

Other funds holding PUBM

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

SST

S Squared Technology New York $322M AUM 92.75% 1-Year Est. Return

Simcoe Capital Spokane, Washington $164M AUM

Optiver Holding's PUBM Position: Q2 2026 in Review

Optiver Holding reduced its PubMatic (PUBM) stake by 26% in Q2 2026, selling an estimated $436 and leaving 122 shares worth $1.6K. The position accounts for ﹤0.01% of the portfolio, ranked #2373.

Optiver Holding first reported a position in PUBM in Q3 2025 and has held it in 4 quarters since. 117 funds tracked by Wall St. Rank hold PUBM as of Q2 2026.

Optiver Holding held 122 shares of PubMatic worth $1.6K as of Q2 2026.
Optiver Holding sold 42 PubMatic shares in Q2 2026, an estimated $436.
PubMatic made up ﹤0.01% of Optiver Holding's portfolio in Q2 2026, its #2373 holding.
Optiver Holding first reported a position in PubMatic in Q3 2025 and has held it in 4 quarters since.
117 funds tracked by Wall St. Rank held PubMatic as of Q2 2026.

Based on Optiver Holding's 13F filing for Q2 2026, filed 12 Aug 2026.