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 Q2	$1.25K	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	-$5.53K	–	7773
2023 Q1	$5.53K	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 $6.73T AUM 46.02% 1-Year Est. Return

RCMNY

Rubric Capital Management (New York) New York $10.9B AUM 70.31% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Brown Advisory Baltimore, Maryland $64.6B AUM 18.98% 1-Year Est. Return

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

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

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

Group One Trading opened a new position in Ecovyst (ECVT) in Q2 2026: 21,997 shares worth $274K. The stake represents ﹤0.01% of the portfolio and ranks #4032 among its holdings. This is a return to the name: Group One Trading previously reported a position in ECVT as recently as Q2 2025.

Group One Trading first reported a position in ECVT in Q3 2021 and has held it in 9 quarters since. 208 funds tracked by Wall St. Rank hold ECVT as of Q2 2026.

Group One Trading held 21,997 shares of Ecovyst worth $274K as of Q2 2026.
Ecovyst was a new Group One Trading position in Q2 2026.
Ecovyst made up ﹤0.01% of Group One Trading's portfolio in Q2 2026, its #4032 holding.
Group One Trading first reported a position in Ecovyst in Q3 2021 and has held it in 9 quarters since.
208 funds tracked by Wall St. Rank held Ecovyst as of Q2 2026.

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