Simplex Trading’s Ecovyst ECVT Stock Holding History

Simplex 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 Q1	$3.86K	Buy	+300	New	+$3.39K	﹤0.01%	8050
2023 Q3	–	Sell	-200	Closed	-$2K	–	8912
2023 Q2	$2K	Buy	+200	New	+$2.18K	﹤0.01%	8396
2022 Q4	–	Sell	-3,900	Closed	-$32K	–	9448
2022 Q3	$32K	Sell	3,900 -4,100	-51%	-$39K	﹤0.01%	6984
2022 Q2	$78K	Buy	8,000 +6,600	+471%	+$68.6K	﹤0.01%	5902
2022 Q1	$16K	Buy	1,400 +1,300	+1,300%	+$13.6K	﹤0.01%	8448
2021 Q4	$1K	Buy	+100	New	+$1.09K	﹤0.01%	10168
2019 Q1	–	Sell	-5	Closed	-$7K	–	7274
2018 Q4	$7K	Hold	5	–	–	﹤0.01%	6045
2018 Q3	$8K	Buy	+5	New	+$89	﹤0.01%	6520
2018 Q2	–	Sell	-5	Closed	-$1K	–	7465
2018 Q1	$1K	Buy	+5	New	+$75	﹤0.01%	5591

Other funds holding ECVT

RCMNY

Rubric Capital Management (New York) New York $9.44B AUM 68.42% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Hotchkis & Wiley Capital Management Los Angeles, California $32.4B AUM 17.21% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Brown Advisory Baltimore, Maryland $60.9B AUM 15.24% 1-Year Est. Return

Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Allspring Global Investments Charlotte, North Carolina $59.7B AUM 29.08% 1-Year Est. Return

Simplex Trading's ECVT Position: Q1 2026 in Review

Simplex Trading opened a new position in Ecovyst (ECVT) in Q1 2026: 28,461 shares worth $366K. The stake represents ﹤0.01% of the portfolio and ranks #3615 among its holdings. This is a return to the name: Simplex Trading previously reported a position in ECVT as recently as Q2 2025.

Simplex Trading first reported a position in ECVT in Q3 2018 and has held it in 14 quarters since. The position peaked at $524K in Q2 2021. 197 funds tracked by Wall St. Rank hold ECVT as of Q1 2026.

Simplex Trading held 28,461 shares of Ecovyst worth $366K as of Q1 2026.
Ecovyst was a new Simplex Trading position in Q1 2026.
Ecovyst made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #3615 holding.
Simplex Trading first reported a position in Ecovyst in Q3 2018 and has held it in 14 quarters since.
Simplex Trading's Ecovyst position peaked at $524K in Q2 2021.
197 funds tracked by Wall St. Rank held Ecovyst as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.