- Underlying shares
- 547K
- Option value
- $408M
- % of portfolio
- —
As of Jun 30, 2026 · disclosed Aug 14, 2026 · ~45 days stale — may not reflect current positions.
Two Sigma's Q2 book, disclosed as of June 30, shows the quant's bullish call exposure on the S&P 500 ETF more than four times larger than a quarter earlier. Western Digital sits atop the long side at roughly 1.1% of the portfolio, ahead of Nvidia and Apple.