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 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$1.12B |
| 2 |
NVIDIA
NVDA
|
+$486M |
| 3 |
Apple
AAPL
|
+$199M |
| 4 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$189M |
| 5 |
Microsoft
MSFT
|
+$164M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Advanced Micro Devices
AMD
|
+$134M |
| 2 |
State Street Energy Select Sector SPDR ETF
XLE
|
+$75.2M |
| 3 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$69M |
| 4 |
Broadcom
AVGO
|
+$50.6M |
| 5 |
iShares iBoxx $ High Yield Corporate Bond ETF
HYG
|
+$48.2M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Miscellaneous | 98.66% |
| 2 | Technology | 0.92% |
| 3 | Financials | 0.16% |
| 4 | Communication Services | 0.1% |
| 5 | Consumer Discretionary | 0.05% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1926
First Advantage
FA
$3.7B
| $5.88K | ﹤0.01% |
+326
| New | +$4.72K |
|
1927
Azenta
AZTA
$1.45B
| $5.87K | ﹤0.01% |
+230
| New | +$5.16K |
|
1928
Avita Medical
RCEL
$323M
| $5.86K | ﹤0.01% |
1,418
+556
| +65% | +$2.4K |
|
1929
Hovnanian Enterprises
HOV
$692M
| $5.84K | ﹤0.01% |
+41
| New | +$4.68K |
|
1930
CRA International
CRAI
$1.03B
| $5.83K | ﹤0.01% |
41
+7
| +21% | +$1.05K |
|
1931
Corcept Therapeutics
CORT
$12.1B
| $5.83K | ﹤0.01% |
+67
| New | +$4.05K |
|
1932
Altimmune
ALT
$630M
| $5.81K | ﹤0.01% |
1,910
-1,948
| -50% | -$5.82K |
|
1933
Houlihan Lokey
HLI
$9.11B
| $5.77K | ﹤0.01% |
+43
| New | +$6.34K |
|
1934
Ross Stores
ROST
$71.8B
| $5.75K | ﹤0.01% |
+27
| New | +$6.08K |
|
1935
German American Bancorp
GABC
$1.85B
| $5.74K | ﹤0.01% |
121
-1
| -0.8% | -$44 |
|
1936
Marten Transport
MRTN
$1.12B
| $5.73K | ﹤0.01% |
330
+200
| +154% | +$3.18K |
|
1937
Center Bancorp
CNOB
$1.59B
| $5.72K | ﹤0.01% |
171
+21
| +14% | +$631 |
|
1938
Bank OZK
OZK
$5.23B
| $5.68K | ﹤0.01% |
+109
| New | +$5.31K |
|
1939
nCino
NCNO
$2.29B
| $5.67K | ﹤0.01% |
347
-1,759
| -84% | -$28.9K |
|
1940
Arteris
AIP
$1.03B
| $5.64K | ﹤0.01% |
116
-190
| -62% | -$6.08K |
|
1941
Herbalife
HLF
$1.24B
| $5.62K | ﹤0.01% |
427
+275
| +181% | +$3.79K |
|
1942
Under Armour Class C
UA
$2.09B
| $5.6K | ﹤0.01% |
+900
| New | +$5.18K |
|
1943
CBIZ
CBZ
$2.96B
| $5.58K | ﹤0.01% |
174
-30
| -15% | -$933 |
|
|
CTO
1944
CTO Realty Growth
CTO
$776M
| $5.55K | ﹤0.01% |
258
-224
| -46% | -$4.54K |
|
1945
Surgery Partners
SGRY
$1.82B
| $5.53K | ﹤0.01% |
329
-32
| -9% | -$449 |
|
1946
NCR Voyix
VYX
$982M
| $5.52K | ﹤0.01% |
+676
| New | +$4.76K |
|
1947
United Parks & Resorts
PRKS
$1.64B
| $5.49K | ﹤0.01% |
+115
| New | +$4.46K |
|
1948
ICF International
ICFI
$1.57B
| $5.46K | ﹤0.01% |
75
+15
| +25% | +$1.04K |
|
1949
Adtran
ADTN
$578M
| $5.46K | ﹤0.01% |
+393
| New | +$6.13K |
|
1950
United States Lime & Minerals
USLM
$3.27B
| $5.44K | ﹤0.01% |
52
+36
| +225% | +$4.18K |
|
Similar funds
Optiver Holding's Q2 2026 Portfolio in Review
As of Q2 2026, Optiver Holding held 3,179 positions worth $371B, up 28% from $289B the previous quarter. Its ten largest holdings account for 66% of the portfolio.
Optiver Holding's Q2 2026 filing shows 890 new, 894 increased, 893 reduced and 434 closed positions. Its largest new stake was Alphabet (Google) Class A: 397,783 shares worth $142M. The largest sale was Advanced Micro Devices, an estimated $134M.
By sector, the portfolio is most concentrated in Miscellaneous at 99% of assets, down from 99% a quarter earlier, followed by Technology and Financials.
- Optiver Holding's largest Q2 2026 buy was Alphabet (Google) Class A: 397,783 shares worth $142M.
- Optiver Holding added most to State Street SPDR S&P 500 ETF Trust in Q2 2026, an estimated $1.12B increase.
- Optiver Holding's biggest Q2 2026 reduction was State Street Energy Select Sector SPDR ETF, cutting an estimated $75.2M.
- Optiver Holding fully exited Advanced Micro Devices in Q2 2026, selling an estimated $134M.
- Optiver Holding's ten largest holdings make up 66% of its $371B portfolio in Q2 2026.
- Optiver Holding opened 890 new positions and closed 434 in Q2 2026.
- Optiver Holding's portfolio value rose 28% quarter-over-quarter to $371B.
Based on Optiver Holding's 13F filing for Q2 2026, filed 12 Aug 2026.