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 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$2.09B |
| 2 |
Amazon
AMZN
|
+$607M |
| 3 |
Advanced Micro Devices
AMD
|
+$173M |
| 4 |
Microsoft
MSFT
|
+$93.4M |
| 5 |
Alphabet (Google) Class C
GOOG
|
+$92M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Alphabet (Google) Class A
GOOGL
|
+$279M |
| 2 |
iShares Russell 2000 ETF
IWM
|
+$276M |
| 3 |
NVIDIA
NVDA
|
+$241M |
| 4 |
TSMC
TSM
|
+$147M |
| 5 |
Tesla
TSLA
|
+$99.2M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.59% |
| 2 | Consumer Discretionary | 0.28% |
| 3 | Communication Services | 0.2% |
| 4 | Financials | 0.11% |
| 5 | Healthcare | 0.08% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2476
Sera Prognostics
SERA
$80.3M
| $1.26K | ﹤0.01% |
+412
| New | +$1.17K |
|
2477
Nkarta
NKTX
$162M
| $1.25K | ﹤0.01% |
+606
| New | +$1.24K |
|
|
CTNM
2478
Contineum Therapeutics
CTNM
$518M
| $1.22K | ﹤0.01% |
+104
| New | +$838 |
|
2479
Jack in the Box
JACK
$299M
| $1.19K | ﹤0.01% |
+60
| New | +$1.19K |
|
2480
FS KKR Capital
FSK
$3.04B
| $1.18K | ﹤0.01% |
+79
| New | +$1.5K |
|
2481
Townsquare Media
TSQ
$106M
| $1.17K | ﹤0.01% |
+174
| New | +$1.26K |
|
2482
NI Holdings
NODK
$324M
| $1.17K | ﹤0.01% |
+86
| New | +$1.13K |
|
2483
Leslie's
LESL
$10.8M
| $1.14K | ﹤0.01% |
207
-1
| -0.5% | -$7 |
|
2484
Phibro Animal Health
PAHC
$1.43B
| $1.13K | ﹤0.01% |
+28
| New | +$925 |
|
2485
Asana
ASAN
$1.79B
| $1.12K | ﹤0.01% |
+84
| New | +$1.19K |
|
|
MPX
2486
DELISTED
Marine Products Corp
MPX
| $1.12K | ﹤0.01% |
+126
| New | +$1.12K |
|
2487
Waldencast
WALD
$221M
| $1.12K | ﹤0.01% |
+564
| New | +$1.13K |
|
2488
PubMatic
PUBM
$594M
| $1.11K | ﹤0.01% |
+134
| New | +$1.36K |
|
2489
InnovAge Holding
INNV
$1.56B
| $1.07K | ﹤0.01% |
+208
| New | +$840 |
|
2490
MediWound
MDWD
$186M
| $1.06K | ﹤0.01% |
+60
| New | +$1.11K |
|
|
THRD
2491
DELISTED
Third Harmonic Bio
THRD
| $1.05K | ﹤0.01% |
+196
| New | +$1.06K |
|
2492
Klaviyo
KVYO
$5.31B
| $1.05K | ﹤0.01% |
+38
| New | +$1.23K |
|
2493
Destination XL Group
DXLG
$34.3M
| $1.04K | ﹤0.01% |
+798
| New | +$1.05K |
|
|
ACH
2494
Accendra Health
ACH
$247M
| $1.04K | ﹤0.01% |
+216
| New | +$1.37K |
|
2495
Cardiff Oncology
CRDF
$65M
| $1.03K | ﹤0.01% |
+498
| New | +$1.38K |
|
2496
Navient
NAVI
$809M
| $1.03K | ﹤0.01% |
78
-314
| -80% | -$4.26K |
|
2497
Kiniksa Pharmaceuticals
KNSA
$4.89B
| $1.01K | ﹤0.01% |
+26
| New | +$845 |
|
2498
Pulmonx
LUNG
$51.5M
| $1.01K | ﹤0.01% |
+622
| New | +$1.3K |
|
2499
Avantor
AVTR
$8.03B
| $998 | ﹤0.01% |
+80
| New | +$1.03K |
|
2500
Usana Health Sciences
USNA
$412M
| $992 | ﹤0.01% |
+36
| New | +$1.11K |
|
Similar funds
Optiver Holding's Q3 2025 Portfolio in Review
As of Q3 2025, Optiver Holding held 2,925 positions worth $251B, up 19% from $210B the previous quarter. Its ten largest holdings account for 77% of the portfolio.
Optiver Holding deployed $19.1B of net new capital in Q3 2025, opening 1,491 new positions and adding to 680 existing holdings. Its largest new stake was State Street SPDR S&P 500 ETF Trust: 3,260,678 shares worth $2.17B.
By sector, the portfolio is most concentrated in Technology at 0.59% of assets, down from 0.65% a quarter earlier, followed by Consumer Discretionary and Communication Services.
On the sell side, the largest reduction was Alphabet (Google) Class A, an estimated $279M trimmed.
- Optiver Holding's largest Q3 2025 buy was State Street SPDR S&P 500 ETF Trust: 3,260,678 shares worth $2.17B.
- Optiver Holding added most to Amazon in Q3 2025, an estimated $607M increase.
- Optiver Holding's biggest Q3 2025 reduction was Alphabet (Google) Class A, cutting an estimated $279M.
- Optiver Holding fully exited Tesla in Q3 2025, selling an estimated $99.2M.
- Optiver Holding's ten largest holdings make up 77% of its $251B portfolio in Q3 2025.
- Optiver Holding opened 1,491 new positions and closed 259 in Q3 2025.
- Optiver Holding's portfolio value rose 19% quarter-over-quarter to $251B.
Based on Optiver Holding's 13F filing for Q3 2025, filed 10 Nov 2025.