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 | |
|---|---|---|---|---|---|---|
1801
Vitesse Energy
VTS
$659M
| $2.22K | ﹤0.01% |
122
+79
| +184% | +$1.59K |
|
1802
Central Garden & Pet Co
CENT
$2.74B
| $2.21K | ﹤0.01% |
60
-16
| -21% | -$573 |
|
1803
Peoples Bancorp of North Carolina
PEBK
$229M
| $2.19K | ﹤0.01% |
56
-16
| -22% | -$602 |
|
1804
Innospec
IOSP
$2.09B
| $2.19K | ﹤0.01% |
+30
| New | +$2.34K |
|
|
TRST
1805
Trustco Bank Corp NY
TRST
$977M
| $2.19K | ﹤0.01% |
50
-4
| -7% | -$175 |
|
|
MAGN
1806
Magnera Corp
MAGN
$488M
| $2.19K | ﹤0.01% |
230
+6
| +3% | +$77 |
|
1807
AMC Global Media
AMCX
$430M
| $2.19K | ﹤0.01% |
322
+48
| +18% | +$374 |
|
1808
Hackett Group
HCKT
$245M
| $2.19K | ﹤0.01% |
168
| – | – |
|
1809
National Bankshares
NKSH
$233M
| $2.19K | ﹤0.01% |
60
-32
| -35% | -$1.17K |
|
|
SHOE
1810
Shoe Station Group
SHOE
$395M
| $2.18K | ﹤0.01% |
140
+24
| +21% | +$456 |
|
|
MITT
1811
TPG Mortgage Investment Trust
MITT
$230M
| $2.18K | ﹤0.01% |
298
-216
| -42% | -$1.78K |
|
1812
Mineralys Therapeutics
MLYS
$2.35B
| $2.17K | ﹤0.01% |
80
+38
| +90% | +$1.11K |
|
1813
Taylor Devices
TAYD
$175M
| $2.17K | ﹤0.01% |
38
| – | – |
|
1814
Latham Group
SWIM
$646M
| $2.16K | ﹤0.01% |
402
+96
| +31% | +$612 |
|
1815
Chemung Financial Corp
CHMG
$390M
| $2.15K | ﹤0.01% |
40
-8
| -17% | -$453 |
|
1816
Limoneira
LMNR
$237M
| $2.15K | ﹤0.01% |
160
-112
| -41% | -$1.55K |
|
1817
LendingTree
TREE
$544M
| $2.14K | ﹤0.01% |
50
-87
| -64% | -$4.16K |
|
1818
MediaAlpha
MAX
$710M
| $2.14K | ﹤0.01% |
230
-40
| -15% | -$394 |
|
1819
Asure Software
ASUR
$220M
| $2.13K | ﹤0.01% |
248
-184
| -43% | -$1.63K |
|
1820
Savers
SVV
$1.4B
| $2.13K | ﹤0.01% |
+286
| New | +$2.73K |
|
1821
OraSure Technologies
OSUR
$273M
| $2.12K | ﹤0.01% |
708
-256
| -27% | -$729 |
|
1822
Metallus
MTUS
$873M
| $2.12K | ﹤0.01% |
130
+16
| +14% | +$294 |
|
|
SVC
1823
Service Properties Trust
SVC
$1.1B
| $2.12K | ﹤0.01% |
313
-96
| -23% | -$999 |
|
1824
United States Lime & Minerals
USLM
$3.18B
| $2.09K | ﹤0.01% |
+16
| New | +$1.92K |
|
|
KWY
1825
Kingsway Corp
KWY
$249M
| $2.09K | ﹤0.01% |
200
-72
| -26% | -$872 |
|
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.