Simplex Trading’s Grid Dynamics Holdings GDYN Stock Holding History

Simplex Trading’s Portfolio GDYN Stock Details GDYN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$88K	Buy	+15,500	New	+$95.9K	﹤0.01%	5710
2026 Q1	–	Sell	-1,500	Closed	-$13.5K	–	9447
2025 Q4	$13.5K	Buy	1,500 +1,300	+650%	+$11.3K	﹤0.01%	6786
2025 Q3	$1K	Buy	+200	New	+$1.78K	﹤0.01%	8807
2025 Q2	–	Sell	-200	Closed	-$3K	–	9012
2025 Q1	$3K	Buy	+200	New	+$4.01K	﹤0.01%	7807
2023 Q2	–	Sell	-400	Closed	-$4K	–	9304
2023 Q1	$4K	Buy	+400	New	+$4.7K	﹤0.01%	8169
2022 Q4	–	Sell	-300	Closed	-$5K	–	9598
2022 Q3	$5K	Buy	300 +100	+50%	+$1.9K	﹤0.01%	8767
2022 Q2	$3K	Sell	200 -9,300	-98%	-$152K	﹤0.01%	9137
2022 Q1	$133K	Sell	9,500 -7,200	-43%	-$147K	﹤0.01%	5734
2021 Q4	$634K	Buy	16,700 +10,000	+149%	+$346K	﹤0.01%	3486
2021 Q3	$125K	Buy	6,700 +100	+2%	+$2.44K	﹤0.01%	6303
2021 Q2	$99K	Buy	+6,600	New	+$103K	﹤0.01%	6736
2021 Q1	–	Sell	-1	Closed	-$1K	–	9216
2020 Q4	$1K	Buy	+1	New	+$10	﹤0.01%	8107

Other funds holding GDYN

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

Alyeska Investment Group Chicago, Illinois $38.9B AUM 28.51% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

BAMCO Inc New York $66.6B AUM 7.35% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

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

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

Federated Hermes Pittsburgh, Pennsylvania $69.6B AUM 42.52% 1-Year Est. Return

Simplex Trading's GDYN Position: Q2 2026 in Review

Simplex Trading increased its Grid Dynamics Holdings (GDYN) stake by 194% in Q2 2026, buying an estimated $162K and bringing the position to 39,630 shares worth $225K. The position accounts for ﹤0.01% of the portfolio, ranked #4562.

Simplex Trading first reported a position in GDYN in Q4 2020 and has held it in 15 quarters since. The position peaked at $284K in Q4 2025. 198 funds tracked by Wall St. Rank hold GDYN as of Q2 2026.

Simplex Trading held 39,630 shares of Grid Dynamics Holdings worth $225K as of Q2 2026.
Simplex Trading bought 26,148 Grid Dynamics Holdings shares in Q2 2026, an estimated $162K.
Grid Dynamics Holdings made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #4562 holding.
Simplex Trading first reported a position in Grid Dynamics Holdings in Q4 2020 and has held it in 15 quarters since.
Simplex Trading's Grid Dynamics Holdings position peaked at $284K in Q4 2025.
198 funds tracked by Wall St. Rank held Grid Dynamics Holdings as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.