Optiver Holding
CWST icon

Optiver Holding’s Casella Waste Systems CWST Stock Holding History

Optiver Holding’s Portfolio CWST Stock Details CWST Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$52.6K Buy
542
+504
+1,326% +$43.1K ﹤0.01% 1151
2026
Q1 		$3.02K Buy
38
+29
+322% +$2.78K ﹤0.01% 1669
2025
Q4 		$881 Sell
9
-390
-98% -$36.2K ﹤0.01% 2227
2025
Q3 		$37.9K Buy
399
+294
+280% +$29.6K ﹤0.01% 832
2025
Q2 		$12.1K Sell
105
-142
-57% -$16.4K ﹤0.01% 952
2025
Q1 		$27.5K Buy
+247
New +$27K ﹤0.01% 615

Other funds holding CWST

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
WA
Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
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
CCA
Conestoga Capital Advisors Wayne, Pennsylvania $4.6B AUM 16.08% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Optiver Holding's CWST Position: Q2 2026 in Review

Optiver Holding increased its Casella Waste Systems (CWST) stake by 1,326% in Q2 2026, buying an estimated $43.1K and bringing the position to 542 shares worth $52.6K. The position accounts for ﹤0.01% of the portfolio, ranked #1151.

Optiver Holding first reported a position in CWST in Q1 2025 and has held it in 6 quarters since. 418 funds tracked by Wall St. Rank hold CWST as of Q2 2026.

  • Optiver Holding held 542 shares of Casella Waste Systems worth $52.6K as of Q2 2026.
  • Optiver Holding bought 504 Casella Waste Systems shares in Q2 2026, an estimated $43.1K.
  • Casella Waste Systems made up ﹤0.01% of Optiver Holding's portfolio in Q2 2026, its #1151 holding.
  • Optiver Holding first reported a position in Casella Waste Systems in Q1 2025 and has held it in 6 quarters since.
  • 418 funds tracked by Wall St. Rank held Casella Waste Systems as of Q2 2026.

Based on Optiver Holding's 13F filing for Q2 2026, filed 12 Aug 2026.