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Jeff Yass’s Ecovyst ECVT Stock Holding History

Jeff Yass’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
2018
Q2 		– Sell
-11,800
Closed -$165K – 9741
2018
Q1 		$165K Buy
+11,800
New +$177K ﹤0.01% 8467

Other funds holding ECVT

BlackRock
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
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Brown Advisory
Brown Advisory Baltimore, Maryland $64.6B AUM 18.98% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Jeff Yass's ECVT Position: Q2 2026 in Review

Jeff Yass reduced its Ecovyst (ECVT) stake by 72% in Q2 2026, selling an estimated $689K and leaving 19,554 shares worth $243K. The position accounts for ﹤0.01% of the portfolio, ranked #11526.

Jeff Yass first reported a position in ECVT in Q4 2018 and has held it in 25 quarters since. The position peaked at $2.56M in Q3 2023. 207 funds tracked by Wall St. Rank hold ECVT as of Q2 2026.

  • Jeff Yass held 19,554 shares of Ecovyst worth $243K as of Q2 2026.
  • Jeff Yass sold 50,832 Ecovyst shares in Q2 2026, an estimated $689K.
  • Ecovyst made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #11526 holding.
  • Jeff Yass first reported a position in Ecovyst in Q4 2018 and has held it in 25 quarters since.
  • Jeff Yass's Ecovyst position peaked at $2.56M in Q3 2023.
  • 207 funds tracked by Wall St. Rank held Ecovyst as of Q2 2026.

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