Optiver Holding
BELFB

Optiver Holding’s Bel Fuse Inc Class B BELFB Stock Holding History

Optiver Holding’s Portfolio BELFB Stock Details BELFB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$26.6K Buy
80
+26
+48% +$7.03K ﹤0.01% 1400
2026
Q1 		$10.7K Buy
54
+8
+17% +$1.67K ﹤0.01% 1207
2025
Q4 		$7.8K Sell
46
-46
-50% -$7.19K ﹤0.01% 1201
2025
Q3 		$13K Buy
+92
New +$11.7K ﹤0.01% 1142

Other funds holding BELFB

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
JT
Jupiter Topco New York $245B AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 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
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Optiver Holding's BELFB Position: Q2 2026 in Review

Optiver Holding increased its Bel Fuse Inc Class B (BELFB) stake by 48% in Q2 2026, buying an estimated $7.03K and bringing the position to 80 shares worth $26.6K. The position accounts for ﹤0.01% of the portfolio, ranked #1400.

Optiver Holding first reported a position in BELFB in Q3 2025 and has held it in 4 quarters since. 276 funds tracked by Wall St. Rank hold BELFB as of Q2 2026.

  • Optiver Holding held 80 shares of Bel Fuse Inc Class B worth $26.6K as of Q2 2026.
  • Optiver Holding bought 26 Bel Fuse Inc Class B shares in Q2 2026, an estimated $7.03K.
  • Bel Fuse Inc Class B made up ﹤0.01% of Optiver Holding's portfolio in Q2 2026, its #1400 holding.
  • Optiver Holding first reported a position in Bel Fuse Inc Class B in Q3 2025 and has held it in 4 quarters since.
  • 276 funds tracked by Wall St. Rank held Bel Fuse Inc Class B as of Q2 2026.

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