Group One Trading’s Ecovyst ECVT Stock Holding History

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

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q3	$14.7K	Buy	1,500 +1,400	+1,400%	+$15.4K	﹤0.01%	6073
2026 Q2	$1.24K	Sell	100 -53,700	-100%	-$728K	﹤0.01%	7136
2026 Q1	$692K	Buy	+53,800	New	+$608K	﹤0.01%	3036
2025 Q4	–	Sell	-300	Closed	-$2.63K	–	8362
2025 Q3	$2.63K	Buy	+300	New	+$2.64K	﹤0.01%	7821
2025 Q2	–	Sell	-36,300	Closed	-$225K	–	8072
2025 Q1	$225K	Buy	+36,300	New	+$269K	﹤0.01%	3898
2024 Q2	–	Sell	-5,600	Closed	-$62.4K	–	6897
2024 Q1	$62.4K	Buy	5,600 +3,500	+167%	+$33.1K	﹤0.01%	4522
2023 Q4	$20.5K	Buy	+2,100	New	+$20K	﹤0.01%	5743
2023 Q2	–	Sell	-500	Closed	-$5.52K	–	7773
2023 Q1	$5.52K	Buy	+500	New	+$5.17K	﹤0.01%	6238
2021 Q4	–	Sell	-24,300	Closed	-$283K	–	8345
2021 Q3	$283K	Buy	+24,300	New	+$332K	﹤0.01%	4810

Other funds holding ECVT

BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM

Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return

Arrowstreet Capital Boston, Massachusetts $234B AUM 43.58% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM

Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return

Brightline Capital Management Miami, Florida $247M AUM 101.7% 1-Year Est. Return

Morgan Stanley New York $1.96T AUM 27.49% 1-Year Est. Return

State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return

Group One Trading's ECVT Position: Q3 2026 in Review

Group One Trading reduced its Ecovyst (ECVT) stake by 73% in Q3 2026, selling an estimated $177K and leaving 5,885 shares worth $57.8K. The position accounts for ﹤0.01% of the portfolio, ranked #5129.

Group One Trading first reported a position in ECVT in Q3 2021 and has held it in 10 quarters since. The position peaked at $274K in Q2 2026. 149 funds tracked by Wall St. Rank hold ECVT as of Q3 2026.

Group One Trading held 5,885 shares of Ecovyst worth $57.8K as of Q3 2026.
Group One Trading sold 16,112 Ecovyst shares in Q3 2026, an estimated $177K.
Ecovyst made up ﹤0.01% of Group One Trading's portfolio in Q3 2026, its #5129 holding.
Group One Trading first reported a position in Ecovyst in Q3 2021 and has held it in 10 quarters since.
Group One Trading's Ecovyst position peaked at $274K in Q2 2026.
149 funds tracked by Wall St. Rank held Ecovyst as of Q3 2026.

Based on Group One Trading's 13F filing for Q3 2026, filed 10 Nov 2026.