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 |
Oracle
ORCL
|
+$295M |
| 2 |
TSMC
TSM
|
+$248M |
| 3 |
iShares MSCI Brazil ETF
EWZ
|
+$231M |
| 4 |
Meta Platforms (Facebook)
META
|
+$169M |
| 5 |
Palantir
PLTR
|
+$131M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$1.12B |
| 2 |
Amazon
AMZN
|
+$502M |
| 3 |
Advanced Micro Devices
AMD
|
+$310M |
| 4 |
Microsoft
MSFT
|
+$215M |
| 5 |
Alphabet (Google) Class A
GOOGL
|
+$165M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.66% |
| 2 | Communication Services | 0.18% |
| 3 | Consumer Discretionary | 0.16% |
| 4 | Financials | 0.14% |
| 5 | Healthcare | 0.05% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1226
Merit Medical Systems
MMSI
$4.67B
| $7.14K | ﹤0.01% |
81
-200
| -71% | -$17K |
|
|
BORR
1227
Borr Drilling
BORR
$1.2B
| $7.12K | ﹤0.01% |
1,767
-245
| -12% | -$812 |
|
1228
AAR Corp
AIR
$5.62B
| $7.12K | ﹤0.01% |
86
-255
| -75% | -$21.1K |
|
|
SFBS
1229
ServisFirst Bancshares
SFBS
$4.92B
| $7.11K | ﹤0.01% |
99
-138
| -58% | -$10.1K |
|
1230
Builders FirstSource
BLDR
$7.93B
| $7.1K | ﹤0.01% |
+69
| New | +$7.75K |
|
1231
Verra Mobility
VRRM
$635M
| $7.04K | ﹤0.01% |
314
-396
| -56% | -$9.04K |
|
|
KE
1232
Kimball Electronics
KE
$593M
| $7.01K | ﹤0.01% |
252
+32
| +15% | +$923 |
|
1233
Dianthus Therapeutics
DNTH
$5.55B
| $7.01K | ﹤0.01% |
170
+36
| +27% | +$1.4K |
|
1234
First Busey Corp
BUSE
$2.56B
| $6.99K | ﹤0.01% |
294
-202
| -41% | -$4.75K |
|
1235
CNB Financial Corp
CCNE
$1.05B
| $6.96K | ﹤0.01% |
266
| – | – |
|
1236
Ocular Therapeutix
OCUL
$1.85B
| $6.96K | ﹤0.01% |
573
-404
| -41% | -$4.91K |
|
1237
Red Violet
RDVT
$938M
| $6.95K | ﹤0.01% |
122
+48
| +65% | +$2.6K |
|
1238
Transmedics
TMDX
$2.64B
| $6.93K | ﹤0.01% |
57
-211
| -79% | -$26.5K |
|
1239
Huron Consulting
HURN
$1.97B
| $6.92K | ﹤0.01% |
40
-68
| -63% | -$11.1K |
|
1240
FIVE9
FIVN
$2.08B
| $6.9K | ﹤0.01% |
344
-210
| -38% | -$4.46K |
|
1241
Clear Channel Outdoor Holdings
CCO
$1.23B
| $6.89K | ﹤0.01% |
3,119
-492
| -14% | -$913 |
|
1242
Barrett Business Services
BBSI
$1.01B
| $6.88K | ﹤0.01% |
190
+8
| +4% | +$306 |
|
1243
BrightSpring Health Services
BTSG
$14.2B
| $6.85K | ﹤0.01% |
183
-360
| -66% | -$12.1K |
|
1244
American Public Education
APEI
$917M
| $6.8K | ﹤0.01% |
180
+40
| +29% | +$1.43K |
|
1245
Independent Bank
INDB
$4.1B
| $6.8K | ﹤0.01% |
93
-126
| -58% | -$8.95K |
|
1246
Gorman-Rupp
GRC
$2.18B
| $6.78K | ﹤0.01% |
142
+96
| +209% | +$4.47K |
|
1247
Agilysys
AGYS
$3.12B
| $6.77K | ﹤0.01% |
57
-80
| -58% | -$9.63K |
|
|
MIAX
1248
Miami International Holdings
MIAX
$4.47B
| $6.76K | ﹤0.01% |
+152,285
| New | +$6.79M |
|
1249
Porch Group
PRCH
$1.38B
| $6.76K | ﹤0.01% |
740
+64
| +9% | +$771 |
|
1250
Denali Therapeutics
DNLI
$3.82B
| $6.75K | ﹤0.01% |
409
-487
| -54% | -$8.22K |
|
Similar funds
Optiver Holding's Q4 2025 Portfolio in Review
As of Q4 2025, Optiver Holding held 3,112 positions worth $269B, up 7.3% from $251B the previous quarter. Its ten largest holdings account for 71% of the portfolio.
Optiver Holding deployed $10.6B of net new capital in Q4 2025, opening 446 new positions and adding to 524 existing holdings. Its largest new stake was Palantir: 723,942 shares worth $129M.
By sector, the portfolio is most concentrated in Technology at 0.66% of assets, up from 0.59% a quarter earlier, followed by Communication Services and Consumer Discretionary.
On the sell side, the largest reduction was State Street SPDR S&P 500 ETF Trust, an estimated $1.12B trimmed.
- Optiver Holding's largest Q4 2025 buy was Palantir: 723,942 shares worth $129M.
- Optiver Holding added most to Oracle in Q4 2025, an estimated $295M increase.
- Optiver Holding's biggest Q4 2025 reduction was State Street SPDR S&P 500 ETF Trust, cutting an estimated $1.12B.
- Optiver Holding fully exited Rio Tinto in Q4 2025, selling an estimated $48.2M.
- Optiver Holding's ten largest holdings make up 71% of its $269B portfolio in Q4 2025.
- Optiver Holding opened 446 new positions and closed 673 in Q4 2025.
- Optiver Holding's portfolio value rose 7.3% quarter-over-quarter to $269B.
Based on Optiver Holding's 13F filing for Q4 2025, filed 17 Feb 2026.