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
Q2 		$80K Buy
6,100
+2,700
+79% +$28K ﹤0.01% 5037
2026
Q1 		$27.8K Sell
3,400
-2,200
-39% -$16.9K ﹤0.01% 5732
2025
Q4 		$49.7K Sell
5,600
-27,000
-83% -$235K ﹤0.01% 5610
2025
Q3 		$270K Buy
32,600
+7,200
+28% +$73.3K ﹤0.01% 4348
2025
Q2 		$316K Sell
25,400
-49,000
-66% -$517K ﹤0.01% 3871
2025
Q1 		$680K Sell
74,400
-26,500
-26% -$349K ﹤0.01% 2801
2024
Q4 		$1.48M Buy
100,900
+11,900
+13% +$184K ﹤0.01% 2184
2024
Q3 		$1.32M Buy
89,000
+61,100
+219% +$1.06M ﹤0.01% 2076
2024
Q2 		$567K Sell
27,900
-14,700
-35% -$328K ﹤0.01% 2449
2024
Q1 		$1.01M Sell
42,600
-86,000
-67% -$1.54M ﹤0.01% 2078
2023
Q4 		$2.1M Buy
128,600
+33,200
+35% +$482K 0.01% 1833
2023
Q3 		$1.15M Buy
95,400
+64,500
+209% +$981K ﹤0.01% 2115
2023
Q2 		$565K Buy
30,900
+16,800
+119% +$267K ﹤0.01% 2893
2023
Q1 		$195K Buy
14,100
+1,200
+9% +$17.3K ﹤0.01% 3696
2022
Q4 		$165K Sell
12,900
-66,900
-84% -$1.05M ﹤0.01% 4014
2022
Q3 		$1.33M Sell
79,800
-13,600
-15% -$246K ﹤0.01% 2284
2022
Q2 		$1.48M Sell
93,400
-176,500
-65% -$3.78M ﹤0.01% 2337
2022
Q1 		$7.05M Buy
269,900
+24,600
+10% +$630K 0.01% 1263
2021
Q4 		$8.35M Sell
245,300
-222,000
-48% -$7.23M 0.01% 1251
2021
Q3 		$12.3M Buy
+467,300
New +$14M 0.01% 910

Other funds holding PUBM

GHC
Graham Holdings Company Arlington, Virginia $1.08B AUM 28.93% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
WCM
Whitefort Capital Management New York $406M AUM 84.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Jacobs Levy Equity Management
Jacobs Levy Equity Management Florham Park, New Jersey $27.8B AUM 46.46% 1-Year Est. Return

Group One Trading's PUBM Position: Q2 2026 in Review

Group One Trading increased its PubMatic (PUBM) stake by 13% in Q2 2026, buying an estimated $89K and bringing the position to 72,405 shares worth $950K. The position accounts for ﹤0.01% of the portfolio, ranked #2919.

Group One Trading first reported a position in PUBM in Q1 2022 and has held it in 15 quarters since. 152 funds tracked by Wall St. Rank hold PUBM as of Q2 2026.

  • Group One Trading held 72,405 shares of PubMatic worth $950K as of Q2 2026.
  • Group One Trading bought 8,568 PubMatic shares in Q2 2026, an estimated $89K.
  • PubMatic made up ﹤0.01% of Group One Trading's portfolio in Q2 2026, its #2919 holding.
  • Group One Trading first reported a position in PubMatic in Q1 2022 and has held it in 15 quarters since.
  • 152 funds tracked by Wall St. Rank held PubMatic as of Q2 2026.

Based on Group One Trading's 13F filing for Q2 2026, filed 14 Aug 2026.