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 | Miscellaneous | 99.28% |
| 2 | Technology | 0.46% |
| 3 | Financials | 0.11% |
| 4 | Healthcare | 0.03% |
| 5 | Communication Services | 0.03% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1501
Univest Financial
UVSP
$1.15B
| $4.18K | ﹤0.01% |
122
+108
| +771% | +$3.65K |
|
|
CVGW
1502
DELISTED
Calavo Growers
CVGW
| $4.18K | ﹤0.01% |
162
+48
| +42% | +$1.2K |
|
1503
Bowman Consulting
BWMN
$739M
| $4.15K | ﹤0.01% |
146
+56
| +62% | +$1.82K |
|
1504
Orthofix Medical
OFIX
$401M
| $4.15K | ﹤0.01% |
362
+40
| +12% | +$528 |
|
1505
Kearny Financial
KRNY
$579M
| $4.14K | ﹤0.01% |
548
+48
| +10% | +$370 |
|
1506
Home Bancorp
HBCP
$528M
| $4.12K | ﹤0.01% |
68
| – | – |
|
1507
Root
ROOT
$724M
| $4.11K | ﹤0.01% |
93
+22
| +31% | +$1.28K |
|
1508
Choiceone Financial
COFS
$493M
| $4.11K | ﹤0.01% |
146
+24
| +20% | +$688 |
|
|
CRNX
1509
DELISTED
Crinetics Pharmaceuticals
CRNX
| $4.1K | ﹤0.01% |
113
-53
| -32% | -$2.37K |
|
1510
Chefs' Warehouse
CHEF
$4.56B
| $4.1K | ﹤0.01% |
69
+8
| +13% | +$512 |
|
1511
Aquestive Therapeutics
AQST
$596M
| $4.1K | ﹤0.01% |
988
+576
| +140% | +$2.34K |
|
1512
Orion Group Holdings
ORN
$338M
| $4.1K | ﹤0.01% |
376
+112
| +42% | +$1.34K |
|
1513
Republic Bancorp
RBCAA
$1.83B
| $4.09K | ﹤0.01% |
58
-8
| -12% | -$565 |
|
|
TRTX
1514
TPG RE Finance Trust
TRTX
$486M
| $4.08K | ﹤0.01% |
522
-56
| -10% | -$482 |
|
|
CTLP
1515
DELISTED
Cantaloupe
CTLP
| $4.07K | ﹤0.01% |
376
+360
| +2,250% | +$3.8K |
|
1516
Fulcrum Therapeutics
FULC
$284M
| $4.07K | ﹤0.01% |
530
+208
| +65% | +$1.93K |
|
1517
Tyra Biosciences
TYRA
$1.47B
| $4.06K | ﹤0.01% |
106
-22
| -17% | -$712 |
|
1518
Solid Biosciences
SLDB
$781M
| $4.03K | ﹤0.01% |
560
+256
| +84% | +$1.65K |
|
1519
Center Bancorp
CNOB
$1.54B
| $4.02K | ﹤0.01% |
150
+44
| +42% | +$1.18K |
|
1520
FTAI Infrastructure
FIP
$342M
| $4.01K | ﹤0.01% |
812
+40
| +5% | +$224 |
|
1521
Community Trust Bancorp
CTBI
$1.37B
| $4.01K | ﹤0.01% |
66
+28
| +74% | +$1.7K |
|
1522
Utz Brands
UTZ
$1.26B
| $4.01K | ﹤0.01% |
506
+8
| +2% | +$74 |
|
1523
Natural Gas Services Group
NGS
$422M
| $4K | ﹤0.01% |
106
+20
| +23% | +$731 |
|
1524
Byline Bancorp
BY
$1.68B
| $3.98K | ﹤0.01% |
126
+80
| +174% | +$2.51K |
|
|
EXK
1525
Endeavour Silver
EXK
$2.65B
| $3.98K | ﹤0.01% |
427
-27
| -6% | -$305 |
|
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's Q1 2026 filing shows 415 new, 921 increased, 818 reduced and 564 closed positions. Its largest new stake was State Street SPDR Dow Jones Industrial Average ETF Trust: 142,128 shares worth $65.8M. The largest sale was State Street SPDR S&P 500 ETF Trust, an estimated $1.08B.
By sector, the portfolio is most concentrated in Miscellaneous at 99% of assets, up from 99% a quarter earlier, followed by Technology and Financials.
- 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 415 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.