Group One Trading’s Castor Maritime CTRM Stock Holding History

Group One Trading’s Portfolio CTRM Stock Details CTRM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$1.19K	Sell	571 -100	-15%	-$199	﹤0.01%	7147
2026 Q1	$1.24K	Sell	671 -2,020	-75%	-$4.31K	﹤0.01%	7178
2025 Q4	$5.57K	Buy	2,691 +100	+4%	+$209	﹤0.01%	7135
2025 Q3	$5.39K	Buy	2,591 +217	+9%	+$474	﹤0.01%	7502
2025 Q2	$5.01K	Sell	2,374 -317	-12%	-$707	﹤0.01%	7082
2025 Q1	$6.13K	Buy	+2,691	New	+$7.04K	﹤0.01%	6553
2024 Q4	–	Sell	-7,245	Closed	-$26.3K	–	7388
2024 Q3	$30.6K	Buy	7,245 +4,424	+157%	+$20.4K	﹤0.01%	4984
2024 Q2	$13K	Buy	+2,821	New	+$11.1K	﹤0.01%	5497
2021 Q4	–	Sell	-485	Closed	-$9.96K	–	8298
2021 Q3	$12K	Buy	485 +331	+215%	+$7.43K	﹤0.01%	7416
2021 Q2	$4K	Buy	+154	New	+$6.26K	﹤0.01%	7804

Other funds holding CTRM

TowerView LLC New York $152M AUM 20.28% 1-Year Est. Return

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

Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return

NewEdge Advisors New Orleans, Louisiana $33.6B AUM 31.03% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Apriem Advisors Irvine, California $1.16B AUM 27.46% 1-Year Est. Return

Susquehanna International Group Bala Cynwyd, Pennsylvania $1.28T AUM 58.89% 1-Year Est. Return

Centiva Capital New York $11.5B AUM 31.97% 1-Year Est. Return

Simplex Trading Chicago, Illinois $171B AUM 85% 1-Year Est. Return

TWC

TD Waterhouse Canada Toronto, Ontario, Canada $38B AUM 39.14% 1-Year Est. Return

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

Group One Trading reduced its Castor Maritime (CTRM) stake by 15% in Q2 2026, selling an estimated $199 and leaving 571 shares worth $1.19K. The position accounts for ﹤0.01% of the portfolio, ranked #7147.

Group One Trading first reported a position in CTRM in Q2 2021 and has held it in 10 quarters since. The position peaked at $30.6K in Q3 2024. 25 funds tracked by Wall St. Rank hold CTRM as of Q2 2026.

Group One Trading held 571 shares of Castor Maritime worth $1.19K as of Q2 2026.
Group One Trading sold 100 Castor Maritime shares in Q2 2026, an estimated $199.
Castor Maritime made up ﹤0.01% of Group One Trading's portfolio in Q2 2026, its #7147 holding.
Group One Trading first reported a position in Castor Maritime in Q2 2021 and has held it in 10 quarters since.
Group One Trading's Castor Maritime position peaked at $30.6K in Q3 2024.
25 funds tracked by Wall St. Rank held Castor Maritime as of Q2 2026.

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