§ 13F · FUND PROFILE
Optiver Holding B.V..
Options market maker, high-frequency
AUM · $370.7B (13F)Positions · 2950Turnover · 91% · Q2Filed · Aug 12, 2026
CONCENTRATION
65%
Top 10 holdings
NEW BUYS
+901
+$2.1B deployed
EXITS
0
No exits
SECTOR SHIFT
AUTOMOBILES → SEMICONDUCTORS
-1pp · +6pp
§ 01 · TOP HOLDINGS
The book · Q2 2026
FILED AUG 12, 2026
| # | Ticker | Name | Shares | $ value | % port | Δ Q2 |
|---|---|---|---|---|---|---|
| 1 | SPY | STATE STR SPDR S&P 500 ETF T | 86.25M | $64.4B | 17.4% | −8% |
| 2 | SPY | STATE STR SPDR S&P 500 ETF T | 74.28M | $55.5B | 15.0% | +9% |
| 3 | QQQ | INVESCO QQQ TR | 45.83M | $33.8B | 9.1% | +14% |
| 4 | QQQ | INVESCO QQQ TR | 38.61M | $28.4B | 7.7% | +7% |
| 5 | — | ISHARES TR | 48.81M | $14.7B | 4.0% | +3% |
| 6 | MU | MICRON TECHNOLOGY INC | 9.59M | $11.1B | 3.0% | +77% |
| 7 | — | ISHARES TR | 33.54M | $10.1B | 2.7% | +21% |
| 8 | GLD | SPDR GOLD TR | 25.85M | $9.5B | 2.6% | −11% |
| 9 | MU | MICRON TECHNOLOGY INC | 7.53M | $8.7B | 2.3% | +53% |
| 10 | TSLA | TESLA INC | 14.48M | $6.1B | 1.6% | −10% |
§ 02 · SECTOR ALLOCATION
Where the money is
Semiconductors16.2% (+6pp)
Technology5.2% (+1pp)
Other3.6% (−1pp)
Media3.2% (±0)
Automobiles2.6% (−1pp)
Financial Services2.2% (±0)
§ 03 · THE OPTIVER SIGNAL
AC read
Optiver Holding B.V. is a Systematic / Quant fund managing $370.7 billion in assets. The fund runs a massive portfolio of 2,950 positions, moderate concentration, with the top 10 positions making up 65% of the portfolio. Trading activity is aggressive at 91% quarterly turnover, with 901 new positions and 0 exits last quarter. Top sector allocations: Semiconductors (16%), Technology (5%), Other (4%).
Read the full dossier →§ 04 · FILING HISTORY
Q-by-Q deltas
4 OF 3 FILINGS MEASURED
Q2 2026
Busy quarter
+901 buys · −0 exits · 1789 changed
Q1 2026
Busy quarter
+421 buys · −0 exits · 1745 changed
Q1 2026
Busy quarter
+421 buys · −0 exits · 1745 changed
Q4 2025
Busy quarter
+466 buys · −0 exits · 1498 changed