Optiver Holding Portfolio holdings
Optiver Holding is a Dutch market maker that trades for its own account, and its name comes from the Dutch word for "option trader". Johann Kaemingk, Ruud Vlek and Chris Oomen founded it in 1986 to make markets in options on the European Options Exchange, which became Euronext. Its traders continuously quote buy and sell prices across global markets, using the firm's own money and advanced technology, so that others can trade easily. It is privately owned and trades listed derivatives, stocks, ETFs, bonds and foreign exchange, and has spread to Asia-Pacific since opening in Australia in 1996. In 2019 it joined American rival Virtu in funding Equiduct, a trading venue that competes with national stock exchanges.
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 | Held Since | |
|---|---|---|---|---|---|---|---|
2051
Old Second Bancorp
OSBC
$1.21B
| $4.15K | ﹤0.01% |
178
-8
| -4% | -$171 |
2025 Q3
3 quarters
|
|
2052
Castle Biosciences
CSTL
$993M
| $4.15K | ﹤0.01% |
+174
| New | +$3.88K |
2026 Q2
0 quarters
|
|
2053
LegalZoom.com
LZ
$865M
| $4.14K | ﹤0.01% |
676
+185
| +38% | +$1.13K |
2024 Q2
8 quarters
|
|
2054
Trupanion
TRUP
$1.61B
| $4.14K | ﹤0.01% |
167
+113
| +209% | +$2.75K |
2025 Q3
3 quarters
|
|
2055
Pharming Group
PHAR
$870M
| $4.14K | ﹤0.01% |
+305
| New | +$4.42K |
2026 Q2
0 quarters
|
|
2056
John B. Sanfilippo & Son
JBSS
$643M
| $4.13K | ﹤0.01% |
48
+26
| +118% | +$2.06K |
2025 Q3
3 quarters
|
|
2057
Rogers Communications
RCI
$18B
| $4.13K | ﹤0.01% |
+127
| New | +$4.58K |
2026 Q2
0 quarters
|
|
2058
AMERISAFE
AMSF
$363M
| $4.13K | ﹤0.01% |
122
+80
| +190% | +$2.53K |
2026 Q1
1 quarter
|
|
2059
American Assets Trust
AAT
$1.32B
| $4.12K | ﹤0.01% |
167
+131
| +364% | +$2.87K |
2026 Q1
1 quarter
|
|
2060
Koppers
KOP
$567M
| $4.09K | ﹤0.01% |
+91
| New | +$3.72K |
2026 Q2
0 quarters
|
|
2061
DELISTED
American Express Global Business Travel
GBTG
| $4.08K | ﹤0.01% |
435
+392
| +912% | +$3.18K |
2025 Q3
3 quarters
|
|
2062
Bel Fuse Inc Class A
BELFA
$2.37B
| $4.08K | ﹤0.01% |
14
-8
| -36% | -$1.94K |
2025 Q3
3 quarters
|
|
2063
Chimera Investment
CIM
$612M
| $4.07K | ﹤0.01% |
305
-40
| -12% | -$535 |
2024 Q2
8 quarters
|
|
2064
Crawford & Co Class A
CRD.A
$550M
| $4.07K | ﹤0.01% |
361
+175
| +94% | +$1.86K |
2025 Q3
3 quarters
|
|
2065
American Vanguard Corp
AVD
$28.4M
| $4.07K | ﹤0.01% |
+1,452
| New | +$3.94K |
2026 Q2
0 quarters
|
|
2066
Hornbeck Offshore Services, Inc.
HOS
$1.74B
| $4.05K | ﹤0.01% |
463
+356
| +333% | +$3.42K |
2025 Q3
3 quarters
|
|
2067
Safety Insurance
SAFT
$1.53B
| $4.04K | ﹤0.01% |
54
-180
| -77% | -$13.1K |
2025 Q3
3 quarters
|
|
2068
Mineralys Therapeutics
MLYS
$1.36B
| $3.99K | ﹤0.01% |
148
+68
| +85% | +$1.87K |
2025 Q3
3 quarters
|
|
2069
Virtu Financial
VIRT
$4.76B
| $3.99K | ﹤0.01% |
+67
| New | +$3.52K |
2026 Q2
0 quarters
|
|
2070
Ladder Capital
LADR
$1.12B
| $3.96K | ﹤0.01% |
398
-112
| -22% | -$1.14K |
2025 Q3
3 quarters
|
|
2071
FLEX LNG
FLNG
$1.41B
| $3.96K | ﹤0.01% |
141
-27
| -16% | -$835 |
2025 Q4
2 quarters
|
|
2072
Amylyx Pharmaceuticals
AMLX
$3.7B
| $3.95K | ﹤0.01% |
+220
| New | +$3.4K |
2026 Q2
0 quarters
|
|
2073
BrightView Holdings
BV
$1.08B
| $3.94K | ﹤0.01% |
278
-48
| -15% | -$602 |
2025 Q3
3 quarters
|
|
2074
Intapp
INTA
$3.35B
| $3.93K | ﹤0.01% |
156
-1,663
| -91% | -$37.9K |
2025 Q1
5 quarters
|
|
2075
Trevi Therapeutics
TRVI
$2.04B
| $3.92K | ﹤0.01% |
210
-456
| -68% | -$6.63K |
2025 Q3
3 quarters
|
|
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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, 893 increased, 893 reduced and 433 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 433 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.