Optiver Holding
CECO icon

Optiver Holding’s Ceco Environmental CECO Stock Holding History

Optiver Holding’s Portfolio CECO Stock Details CECO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$24K Buy
264
+136
+106% +$10.8K ﹤0.01% 1447
2026
Q1 		$7.63K Buy
128
+22
+21% +$1.42K ﹤0.01% 1291
2025
Q4 		$6.34K Buy
+106
New +$5.67K ﹤0.01% 1269

Other funds holding CECO

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
DSCM
Divisadero Street Capital Management Miami, Florida $4.41B AUM 90.53% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Optiver Holding's CECO Position: Q2 2026 in Review

Optiver Holding increased its Ceco Environmental (CECO) stake by 106% in Q2 2026, buying an estimated $10.8K and bringing the position to 264 shares worth $24K. The position accounts for ﹤0.01% of the portfolio, ranked #1447.

Optiver Holding first reported a position in CECO in Q4 2025 and has held it in 3 quarters since. 343 funds tracked by Wall St. Rank hold CECO as of Q2 2026.

  • Optiver Holding held 264 shares of Ceco Environmental worth $24K as of Q2 2026.
  • Optiver Holding bought 136 Ceco Environmental shares in Q2 2026, an estimated $10.8K.
  • Ceco Environmental made up ﹤0.01% of Optiver Holding's portfolio in Q2 2026, its #1447 holding.
  • Optiver Holding first reported a position in Ceco Environmental in Q4 2025 and has held it in 3 quarters since.
  • 343 funds tracked by Wall St. Rank held Ceco Environmental as of Q2 2026.

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