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 |
Micron Technology
MU
|
+$92.3M |
| 2 |
State Street Energy Select Sector SPDR ETF
XLE
|
+$73.9M |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$68.9M |
| 4 |
SoFi Technologies
SOFI
|
+$49.1M |
| 5 |
iShares iBoxx $ High Yield Corporate Bond ETF
HYG
|
+$48.7M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$1.08B |
| 2 |
iShares MSCI Brazil ETF
EWZ
|
+$246M |
| 3 |
Meta Platforms (Facebook)
META
|
+$226M |
| 4 |
Amazon
AMZN
|
+$187M |
| 5 |
Apple
AAPL
|
+$184M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.46% |
| 2 | Financials | 0.11% |
| 3 | Healthcare | 0.03% |
| 4 | Communication Services | 0.03% |
| 5 | Consumer Staples | 0.02% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1176
Fastly Inc
FSLY
$3.17B
| $12.9K | ﹤0.01% |
+444
| New | +$7.29K |
|
1177
Aehr Test Systems
AEHR
$2.48B
| $12.8K | ﹤0.01% |
+345
| New | +$11K |
|
1178
Skyward Specialty Insurance
SKWD
$2.45B
| $12.8K | ﹤0.01% |
292
-36
| -11% | -$1.64K |
|
1179
Dole
DOLE
$1.35B
| $12.5K | ﹤0.01% |
+874
| New | +$13.2K |
|
1180
Apogee Therapeutics
APGE
$10.2B
| $12.5K | ﹤0.01% |
148
-8
| -5% | -$581 |
|
|
SEMR
1181
DELISTED
Semrush
SEMR
| $12.3K | ﹤0.01% |
1,034
+202
| +24% | +$2.4K |
|
1182
Cytokinetics
CYTK
$11B
| $12.2K | ﹤0.01% |
185
-537
| -74% | -$34.1K |
|
1183
Akebia Therapeutics
AKBA
$327M
| $12.2K | ﹤0.01% |
8,756
-7,057
| -45% | -$9.7K |
|
1184
Alpha and Omega Semiconductor
AOSL
$923M
| $12.1K | ﹤0.01% |
546
+476
| +680% | +$10.4K |
|
1185
Texas Capital Bancshares
TCBI
$4.31B
| $12.1K | ﹤0.01% |
127
-134
| -51% | -$13.1K |
|
|
MZTI
1186
The Marzetti Company
MZTI
$2.94B
| $12K | ﹤0.01% |
87
-48
| -36% | -$7.64K |
|
1187
Praxis Precision Medicines
PRAX
$9.07B
| $11.9K | ﹤0.01% |
37
-23
| -38% | -$7.12K |
|
1188
Altimmune
ALT
$539M
| $11.9K | ﹤0.01% |
+3,858
| New | +$16.4K |
|
1189
Deluxe
DLX
$1.19B
| $11.8K | ﹤0.01% |
430
-69
| -14% | -$1.8K |
|
|
ECG
1190
Everus Construction Group
ECG
$6.63B
| $11.8K | ﹤0.01% |
100
| – | – |
|
|
CURB
1191
Curbline Properties
CURB
$3.6B
| $11.8K | ﹤0.01% |
456
| – | – |
|
1192
PureCycle Technologies
PCT
$1.17B
| $11.7K | ﹤0.01% |
2,251
| – | – |
|
1193
Axsome Therapeutics
AXSM
$12.4B
| $11.7K | ﹤0.01% |
69
-43
| -38% | -$7.43K |
|
1194
Nicolet Bankshares
NIC
$3.57B
| $11.6K | ﹤0.01% |
78
+54
| +225% | +$7.84K |
|
1195
CareTrust REIT
CTRE
$10.2B
| $11.6K | ﹤0.01% |
+316
| New | +$12.1K |
|
1196
Cadiz
CDZI
$266M
| $11.6K | ﹤0.01% |
2,354
-360
| -13% | -$1.97K |
|
1197
Immunome
IMNM
$2.52B
| $11.5K | ﹤0.01% |
526
+116
| +28% | +$2.58K |
|
|
GRFS
1198
Grifois
GRFS
$5.16B
| $11.4K | ﹤0.01% |
1,426
| – | – |
|
1199
SGHC Ltd
SGHC
$7.3B
| $11.4K | ﹤0.01% |
1,054
+345
| +49% | +$3.52K |
|
1200
Centuri Holdings
CTRI
$2.79B
| $11.3K | ﹤0.01% |
388
+128
| +49% | +$3.73K |
|
Similar funds
Optiver Holding's Q1 2026 Portfolio in Review
As of Q1 2026, Optiver Holding held 2,853 positions worth $289B, up 7.7% from $269B the previous quarter. Its ten largest holdings account for 70% of the portfolio.
Optiver Holding deployed $33.8B of net new capital in Q1 2026, opening 414 new positions and adding to 922 existing holdings. Its largest new stake was State Street SPDR Dow Jones Industrial Average ETF Trust: 142,128 shares worth $65.8M.
By sector, the portfolio is most concentrated in Technology at 0.46% of assets, down from 0.66% a quarter earlier, followed by Financials and Healthcare.
On the sell side, the largest reduction was State Street SPDR S&P 500 ETF Trust, an estimated $1.08B trimmed.
- Optiver Holding's largest Q1 2026 buy was State Street SPDR Dow Jones Industrial Average ETF Trust: 142,128 shares worth $65.8M.
- Optiver Holding added most to Micron Technology in Q1 2026, an estimated $92.3M increase.
- Optiver Holding's biggest Q1 2026 reduction was State Street SPDR S&P 500 ETF Trust, cutting an estimated $1.08B.
- Optiver Holding fully exited iShares MSCI Brazil ETF in Q1 2026, selling an estimated $246M.
- Optiver Holding's ten largest holdings make up 70% of its $289B portfolio in Q1 2026.
- Optiver Holding opened 414 new positions and closed 564 in Q1 2026.
- Optiver Holding's portfolio value rose 7.7% quarter-over-quarter to $289B.
Based on Optiver Holding's 13F filing for Q1 2026, filed 15 May 2026.