Optiver Holding
BELFA icon

Optiver Holding’s Bel Fuse Inc Class A BELFA Stock Holding History

Optiver Holding’s Portfolio BELFA Stock Details BELFA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$4.08K Sell
14
-8
-36% -$1.95K ﹤0.01% 2063
2026
Q1 		$3.96K Hold
22
– – ﹤0.01% 1527
2025
Q4 		$3.34K Hold
22
– – ﹤0.01% 1682
2025
Q3 		$2.56K Buy
+22
New +$2.42K ﹤0.01% 2272

Other funds holding BELFA

Brown Advisory
Brown Advisory Baltimore, Maryland $64.6B AUM 18.98% 1-Year Est. Return
MP
Mangrove Partners Greenwich, Connecticut $1.52B AUM 36.54% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
GF
Gabelli Funds Rye, New York $15.7B AUM 36.4% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
LSC
Logan Stone Capital Chicago, Illinois $473M AUM 0.79% 1-Year Est. Return
GI
GAMCO Investors Greenwich, Connecticut $11.1B AUM 41.79% 1-Year Est. Return

Optiver Holding's BELFA Position: Q2 2026 in Review

Optiver Holding reduced its Bel Fuse Inc Class A (BELFA) stake by 36% in Q2 2026, selling an estimated $1.95K and leaving 14 shares worth $4.08K. The position accounts for ﹤0.01% of the portfolio, ranked #2063.

Optiver Holding first reported a position in BELFA in Q3 2025 and has held it in 4 quarters since. 110 funds tracked by Wall St. Rank hold BELFA as of Q2 2026.

  • Optiver Holding held 14 shares of Bel Fuse Inc Class A worth $4.08K as of Q2 2026.
  • Optiver Holding sold 8 Bel Fuse Inc Class A shares in Q2 2026, an estimated $1.95K.
  • Bel Fuse Inc Class A made up ﹤0.01% of Optiver Holding's portfolio in Q2 2026, its #2063 holding.
  • Optiver Holding first reported a position in Bel Fuse Inc Class A in Q3 2025 and has held it in 4 quarters since.
  • 110 funds tracked by Wall St. Rank held Bel Fuse Inc Class A as of Q2 2026.

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