Optiver Holding
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Optiver Holding’s Greene County Bancorp GCBC Stock Holding History

Optiver Holding’s Portfolio GCBC Stock Details GCBC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.61K Sell
72
-32
-31% -$726 ﹤0.01% 1932
2025
Q4 		$2.31K Hold
104
– – ﹤0.01% 1934
2025
Q3 		$2.35K Buy
+104
New +$2.5K ﹤0.01% 2322

Other funds holding GCBC

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
NA
NewEdge Advisors New Orleans, Louisiana $27.7B AUM 22.98% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
CP
Covalent Partners Concord, Massachusetts $17.6M AUM 2.91% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
AOCA
Angel Oak Capital Advisors Atlanta, Georgia $90M AUM 4.16% 1-Year Est. Return
VFT
Vanguard Fiduciary Trust Malvern, Pennsylvania $396B AUM

Optiver Holding's GCBC Position: Q1 2026 in Review

Optiver Holding reduced its Greene County Bancorp (GCBC) stake by 31% in Q1 2026, selling an estimated $726 and leaving 72 shares worth $1.61K. The position accounts for ﹤0.01% of the portfolio, ranked #1932.

Optiver Holding first reported a position in GCBC in Q3 2025 and has held it in 3 quarters since. The position peaked at $2.35K in Q3 2025. 76 funds tracked by Wall St. Rank hold GCBC as of Q1 2026.

  • Optiver Holding held 72 shares of Greene County Bancorp worth $1.61K as of Q1 2026.
  • Optiver Holding sold 32 Greene County Bancorp shares in Q1 2026, an estimated $726.
  • Greene County Bancorp made up ﹤0.01% of Optiver Holding's portfolio in Q1 2026, its #1932 holding.
  • Optiver Holding first reported a position in Greene County Bancorp in Q3 2025 and has held it in 3 quarters since.
  • Optiver Holding's Greene County Bancorp position peaked at $2.35K in Q3 2025.
  • 76 funds tracked by Wall St. Rank held Greene County Bancorp as of Q1 2026.

Based on Optiver Holding's 13F filing for Q1 2026, filed 15 May 2026.