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 | |
|---|---|---|---|---|---|---|
1726
Cardiff Oncology
CRDF
$64.3M
| $2.68K | ﹤0.01% |
+1,657
| New | +$3.4K |
|
1727
Donegal Group Class A
DGICA
$695M
| $2.68K | ﹤0.01% |
156
+24
| +18% | +$436 |
|
1728
BRC Group Holdings
RILY
$277M
| $2.68K | ﹤0.01% |
366
| – | – |
|
1729
Columbus McKinnon
CMCO
$465M
| $2.67K | ﹤0.01% |
184
+104
| +130% | +$1.94K |
|
1730
United Fire Group
UFCS
$1.32B
| $2.67K | ﹤0.01% |
72
-22
| -23% | -$812 |
|
1731
NextNav
NN
$1.7B
| $2.66K | ﹤0.01% |
166
-1
| -0.6% | -$16 |
|
1732
Puma Biotechnology
PBYI
$406M
| $2.66K | ﹤0.01% |
416
-352
| -46% | -$2.27K |
|
1733
AMC Entertainment Holdings
AMC
$2.03B
| $2.64K | ﹤0.01% |
2,697
-22,473
| -89% | -$28.9K |
|
1734
Forestar Group
FOR
$1.44B
| $2.64K | ﹤0.01% |
108
| – | – |
|
1735
Standard Motor Products
SMP
$861M
| $2.64K | ﹤0.01% |
76
-46
| -38% | -$1.82K |
|
1736
Interparfums
IPAR
$3.92B
| $2.63K | ﹤0.01% |
+29
| New | +$2.75K |
|
1737
OrthoPediatrics
KIDS
$485M
| $2.63K | ﹤0.01% |
166
-88
| -35% | -$1.54K |
|
1738
Greif Class B
GEF.B
$3.65B
| $2.63K | ﹤0.01% |
30
-8
| -21% | -$675 |
|
1739
Atlanticus Holdings
ATLC
$1.5B
| $2.62K | ﹤0.01% |
50
| – | – |
|
1740
Aura Biosciences
AURA
$729M
| $2.62K | ﹤0.01% |
392
-192
| -33% | -$1.1K |
|
1741
WisdomTree
WT
$2.97B
| $2.62K | ﹤0.01% |
180
+131
| +267% | +$2.02K |
|
1742
ARS Pharmaceuticals
SPRY
$590M
| $2.6K | ﹤0.01% |
324
+64
| +25% | +$613 |
|
|
CGC
1743
Canopy Growth
CGC
$375M
| $2.59K | ﹤0.01% |
+2,731
| New | +$3.01K |
|
|
ONIT
1744
Onity Group
ONIT
$333M
| $2.59K | ﹤0.01% |
66
-48
| -42% | -$2.09K |
|
1745
CoreCivic
CXW
$3.1B
| $2.59K | ﹤0.01% |
137
-38
| -22% | -$717 |
|
1746
Xperi
XPER
$365M
| $2.58K | ﹤0.01% |
460
-320
| -41% | -$1.85K |
|
1747
Plains GP Holdings
PAGP
$5.23B
| $2.57K | ﹤0.01% |
106
| – | – |
|
1748
Granite Ridge Resources
GRNT
$640M
| $2.57K | ﹤0.01% |
438
-408
| -48% | -$2.05K |
|
1749
Portillo's
PTLO
$315M
| $2.57K | ﹤0.01% |
485
+38
| +9% | +$207 |
|
1750
Colliers International
CIGI
$4.98B
| $2.56K | ﹤0.01% |
24
+23
| +2,300% | +$2.87K |
|
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.