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John Overdeck’s Westlake Corp WLK Stock Holding History

John Overdeck’s Portfolio WLK Stock Details WLK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-2,900
Closed -$214K – 4960
2025
Q4 		$214K Buy
+2,900
New +$206K ﹤0.01% 3740

Other funds holding WLK

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
OAG
Orbis Allan Gray Hamilton, Bermuda $29.1B AUM 60.8% 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
BIP
Brandes Investment Partners La Jolla, California $14.3B AUM 23.11% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

John Overdeck's WLK Position: Q2 2026 in Review

John Overdeck opened a new position in Westlake Corp (WLK) in Q2 2026: 45,357 shares worth $3.31M. The stake represents ﹤0.01% of the portfolio and ranks #2542 among its holdings. This is a return to the name: John Overdeck previously reported a position in WLK as recently as Q4 2025.

John Overdeck first reported a position in WLK in Q2 2013 and has held it in 35 quarters since. The position peaked at $26.6M in Q1 2025. 356 funds tracked by Wall St. Rank hold WLK as of Q2 2026.

  • John Overdeck held 45,357 shares of Westlake Corp worth $3.31M as of Q2 2026.
  • Westlake Corp was a new John Overdeck position in Q2 2026.
  • Westlake Corp made up ﹤0.01% of John Overdeck's portfolio in Q2 2026, its #2542 holding.
  • John Overdeck first reported a position in Westlake Corp in Q2 2013 and has held it in 35 quarters since.
  • John Overdeck's Westlake Corp position peaked at $26.6M in Q1 2025.
  • 356 funds tracked by Wall St. Rank held Westlake Corp as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.