Group One Trading
PUBM icon

Group One Trading’s PubMatic PUBM Stock Holding History

Group One Trading’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
Q1 		$646K Buy
79,000
+71,800
+997% +$552K ﹤0.01% 3105
2025
Q4 		$63.9K Sell
7,200
-16,100
-69% -$140K ﹤0.01% 5388
2025
Q3 		$193K Sell
23,300
-1,200
-5% -$12.2K ﹤0.01% 4703
2025
Q2 		$305K Buy
24,500
+20,900
+581% +$220K ﹤0.01% 3916
2025
Q1 		$32.9K Sell
3,600
-1,300
-27% -$17.1K ﹤0.01% 5480
2024
Q4 		$72K Hold
4,900
– – ﹤0.01% 4791
2024
Q3 		$72.9K Sell
4,900
-4,500
-48% -$78.2K ﹤0.01% 4405
2024
Q2 		$191K Sell
9,400
-14,800
-61% -$330K ﹤0.01% 3432
2024
Q1 		$574K Buy
24,200
+21,800
+908% +$391K ﹤0.01% 2596
2023
Q4 		$39.1K Sell
2,400
-66,500
-97% -$964K ﹤0.01% 5247
2023
Q3 		$834K Buy
68,900
+17,700
+35% +$269K ﹤0.01% 2444
2023
Q2 		$936K Buy
51,200
+5,100
+11% +$81.1K ﹤0.01% 2420
2023
Q1 		$637K Sell
46,100
-27,000
-37% -$390K ﹤0.01% 2532
2022
Q4 		$936K Sell
73,100
-11,600
-14% -$182K ﹤0.01% 2473
2022
Q3 		$1.41M Sell
84,700
-55,800
-40% -$1.01M ﹤0.01% 2218
2022
Q2 		$2.23M Buy
140,500
+78,900
+128% +$1.69M ﹤0.01% 1961
2022
Q1 		$1.61M Sell
61,600
-5,600
-8% -$143K ﹤0.01% 2615
2021
Q4 		$2.29M Buy
67,200
+29,700
+79% +$968K ﹤0.01% 2455
2021
Q3 		$988K Buy
+37,500
New +$1.13M ﹤0.01% 3430

Other funds holding PUBM

GHC
Graham Holdings Company Arlington, Virginia $967M AUM 15.12% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
CP
CenterBook Partners Greenwich, Connecticut $1.86B AUM 24.52% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Jacobs Levy Equity Management
Jacobs Levy Equity Management Florham Park, New Jersey $23.8B AUM 25.4% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Group One Trading's PUBM Position: Q1 2026 in Review

Group One Trading increased its PubMatic (PUBM) stake by 1,261% in Q1 2026, buying an estimated $455K and bringing the position to 63,837 shares worth $522K. The position accounts for ﹤0.01% of the portfolio, ranked #3301.

Group One Trading first reported a position in PUBM in Q1 2022 and has held it in 14 quarters since. The position peaked at $725K in Q2 2022. 152 funds tracked by Wall St. Rank hold PUBM as of Q1 2026.

  • Group One Trading held 63,837 shares of PubMatic worth $522K as of Q1 2026.
  • Group One Trading bought 59,148 PubMatic shares in Q1 2026, an estimated $455K.
  • PubMatic made up ﹤0.01% of Group One Trading's portfolio in Q1 2026, its #3301 holding.
  • Group One Trading first reported a position in PubMatic in Q1 2022 and has held it in 14 quarters since.
  • Group One Trading's PubMatic position peaked at $725K in Q2 2022.
  • 152 funds tracked by Wall St. Rank held PubMatic as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.