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 | |
|---|---|---|---|---|---|---|
1676
Tyra Biosciences
TYRA
$1.85B
| $3.37K | ﹤0.01% |
128
-240
| -65% | -$4.41K |
|
1677
Bank7 Corp
BSVN
$481M
| $3.36K | ﹤0.01% |
82
| – | – |
|
1678
GlobalFoundries
GFS
$26.8B
| $3.35K | ﹤0.01% |
+96
| New | +$3.42K |
|
1679
Park-Ohio Holdings
PKOH
$546M
| $3.35K | ﹤0.01% |
160
| – | – |
|
1680
Atlanticus Holdings
ATLC
$1.6B
| $3.35K | ﹤0.01% |
50
| – | – |
|
1681
CoreCivic
CXW
$2.98B
| $3.34K | ﹤0.01% |
175
-335
| -66% | -$6.14K |
|
1682
Bel Fuse Inc Class A
BELFA
$2.85B
| $3.34K | ﹤0.01% |
22
| – | – |
|
1683
Amplitude
AMPL
$1.18B
| $3.33K | ﹤0.01% |
288
-408
| -59% | -$4.29K |
|
1684
M/I Homes
MHO
$4B
| $3.33K | ﹤0.01% |
26
-78
| -75% | -$10.3K |
|
1685
Quad
QUAD
$482M
| $3.32K | ﹤0.01% |
530
| – | – |
|
1686
Seneca Foods Class A
SENEA
$1.15B
| $3.32K | ﹤0.01% |
30
| – | – |
|
1687
Tredegar Corp
TG
$257M
| $3.32K | ﹤0.01% |
462
| – | – |
|
1688
Tennant Co
TNC
$1.43B
| $3.32K | ﹤0.01% |
45
-64
| -59% | -$4.89K |
|
1689
Hain Celestial
HAIN
$45.9M
| $3.31K | ﹤0.01% |
3,093
+1,644
| +113% | +$2.03K |
|
1690
Lakeland Financial Corp
LKFN
$1.57B
| $3.31K | ﹤0.01% |
58
-44
| -43% | -$2.62K |
|
1691
Hackett Group
HCKT
$274M
| $3.3K | ﹤0.01% |
168
| – | – |
|
1692
Rush Enterprises Class A
RUSHA
$6.36B
| $3.29K | ﹤0.01% |
61
-178
| -74% | -$9.25K |
|
1693
Phathom Pharmaceuticals
PHAT
$939M
| $3.29K | ﹤0.01% |
198
-386
| -66% | -$5.51K |
|
1694
America's Car Mart
CRMT
$25.8M
| $3.28K | ﹤0.01% |
130
| – | – |
|
1695
Viant Technology
DSP
$231M
| $3.27K | ﹤0.01% |
272
| – | – |
|
1696
Mama's Creations
MAMA
$836M
| $3.27K | ﹤0.01% |
242
-338
| -58% | -$3.88K |
|
1697
Princeton Bancorp
BPRN
$285M
| $3.26K | ﹤0.01% |
94
| – | – |
|
1698
RBB Bancorp
RBB
$451M
| $3.26K | ﹤0.01% |
158
-150
| -49% | -$2.95K |
|
1699
AMES National
ATLO
$271M
| $3.26K | ﹤0.01% |
142
| – | – |
|
1700
Digimarc Corp
DMRC
$143M
| $3.26K | ﹤0.01% |
+497
| New | +$4.21K |
|
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.