Optiver Holding Portfolio holdings
Optiver Holding B.V., founded in 1986 by Johann Kaemingk, Ruud Vlek, and Chris Oomen in Amsterdam, Netherlands, is a leading global proprietary trading firm and market maker specializing in options, derivatives, equities, ETFs, bonds, and foreign exchange. Starting as an options market maker on the European Options Exchange (now Euronext), Optiver has grown into a tech-driven powerhouse with over 2,000 employees across offices in Chicago, Sydney, London, Singapore, and beyond, trading on more than 50 exchanges worldwide. Known for its advanced algorithms and low-latency systems, the firm provides liquidity and competitive pricing, emphasizing market efficiency and stability, though it faced a $14 million fine in 2012 for illegal "banging the close" tactics in U.S. oil futures. Privately owned and led by CEO Rob Defares, Optiver blends a collaborative culture with cutting-edge technology, making it a significant player in the global financial ecosystem.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Oracle
ORCL
|
+$295M |
| 2 |
TSMC
TSM
|
+$248M |
| 3 |
iShares MSCI Brazil ETF
EWZ
|
+$231M |
| 4 |
Meta Platforms (Facebook)
META
|
+$169M |
| 5 |
Palantir
PLTR
|
+$131M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$1.12B |
| 2 |
Amazon
AMZN
|
+$502M |
| 3 |
Advanced Micro Devices
AMD
|
+$310M |
| 4 |
Microsoft
MSFT
|
+$215M |
| 5 |
Alphabet (Google) Class A
GOOGL
|
+$165M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.66% |
| 2 | Communication Services | 0.18% |
| 3 | Consumer Discretionary | 0.16% |
| 4 | Financials | 0.14% |
| 5 | Healthcare | 0.05% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2101
Matthews International
MATW
$900M
| $1.62K | ﹤0.01% |
62
-98
| -61% | -$2.41K |
|
2102
OptimizeRx
OPRX
$119M
| $1.62K | ﹤0.01% |
132
| – | – |
|
2103
Coastal Financial
CCB
$1.11B
| $1.6K | ﹤0.01% |
14
-82
| -85% | -$8.95K |
|
2104
CALL
Companhia Siderúrgica Nacional
SID
$1.46B
| $1.6K | ﹤0.01% |
+1,000
| New | +$1.63K |
|
2105
Old Second Bancorp
OSBC
$1.28B
| $1.6K | ﹤0.01% |
82
-144
| -64% | -$2.69K |
|
2106
BlueLinx
BXC
$465M
| $1.6K | ﹤0.01% |
26
| – | – |
|
|
WSR
2107
DELISTED
Whitestone REIT
WSR
| $1.6K | ﹤0.01% |
115
-225
| -66% | -$2.9K |
|
2108
Sprinklr
CXM
$1.48B
| $1.59K | ﹤0.01% |
205
-808
| -80% | -$6.14K |
|
2109
Novavax
NVAX
$1.21B
| $1.59K | ﹤0.01% |
236
-958
| -80% | -$7.22K |
|
2110
Clarus
CLAR
$128M
| $1.58K | ﹤0.01% |
472
| – | – |
|
2111
Victory Capital Holdings
VCTR
$6.28B
| $1.58K | ﹤0.01% |
25
-145
| -85% | -$9.24K |
|
2112
Eastern Company
EML
$147M
| $1.57K | ﹤0.01% |
80
| – | – |
|
|
TGB
2113
Trekor Metals
TGB
$2.52B
| $1.57K | ﹤0.01% |
279
-17,037
| -98% | -$80.2K |
|
2114
Thryv Holdings
THRY
$184M
| $1.57K | ﹤0.01% |
260
| – | – |
|
2115
Gyre Therapeutics
GYRE
$668M
| $1.57K | ﹤0.01% |
222
| – | – |
|
2116
Canadian Natural Resources
CNQ
$92.2B
| $1.56K | ﹤0.01% |
46
-13
| -22% | -$422 |
|
2117
Ethan Allen Interiors
ETD
$606M
| $1.55K | ﹤0.01% |
68
-78
| -53% | -$1.95K |
|
2118
Mineralys Therapeutics
MLYS
$2.38B
| $1.52K | ﹤0.01% |
42
-244
| -85% | -$9.79K |
|
2119
Hanmi Financial
HAFC
$943M
| $1.51K | ﹤0.01% |
56
-68
| -55% | -$1.82K |
|
2120
Adaptive Biotechnologies
ADPT
$3.6B
| $1.49K | ﹤0.01% |
92
-1,004
| -92% | -$16.4K |
|
|
GAMB
2121
DELISTED
Gambling.com
GAMB
| $1.47K | ﹤0.01% |
270
| – | – |
|
2122
Leggett & Platt
LEG
$1.47B
| $1.46K | ﹤0.01% |
133
-492
| -79% | -$4.84K |
|
2123
Advantage Solutions
ADV
$542M
| $1.46K | ﹤0.01% |
66
| – | – |
|
2124
1-800-Flowers.com
FLWS
$254M
| $1.45K | ﹤0.01% |
370
| – | – |
|
2125
Compass Minerals
CMP
$1.25B
| $1.45K | ﹤0.01% |
74
-242
| -77% | -$4.48K |
|
Similar funds
Optiver Holding's Q4 2025 Portfolio in Review
As of Q4 2025, Optiver Holding held 3,112 positions worth $269B, up 7.3% from $251B the previous quarter. Its ten largest holdings account for 71% of the portfolio.
Optiver Holding deployed $10.6B of net new capital in Q4 2025, opening 446 new positions and adding to 524 existing holdings. Its largest new stake was Palantir: 723,942 shares worth $129M.
By sector, the portfolio is most concentrated in Technology at 0.66% of assets, up from 0.59% a quarter earlier, followed by Communication Services and Consumer Discretionary.
On the sell side, the largest reduction was State Street SPDR S&P 500 ETF Trust, an estimated $1.12B trimmed.
- Optiver Holding's largest Q4 2025 buy was Palantir: 723,942 shares worth $129M.
- Optiver Holding added most to Oracle in Q4 2025, an estimated $295M increase.
- Optiver Holding's biggest Q4 2025 reduction was State Street SPDR S&P 500 ETF Trust, cutting an estimated $1.12B.
- Optiver Holding fully exited Rio Tinto in Q4 2025, selling an estimated $48.2M.
- Optiver Holding's ten largest holdings make up 71% of its $269B portfolio in Q4 2025.
- Optiver Holding opened 446 new positions and closed 673 in Q4 2025.
- Optiver Holding's portfolio value rose 7.3% quarter-over-quarter to $269B.
Based on Optiver Holding's 13F filing for Q4 2025, filed 17 Feb 2026.