Arrowstreet Capital, Limited Partnership

Arrowstreet Capital employs a quantitative growth style with medium turnover, managing $184.8 billion across 1,810 positions as of Q1 2026. The portfolio is heavily concentrated in technology at 31.5%, led by top holdings Microsoft, Amazon, and Broadcom, which together account for 5.4% of the fund from the top three alone, while positions in basic materials (7.2%) and energy (6.4%) add diversity. The top 15 holdings represent roughly 31.6% of assets, with the largest single name at just 4.9%, indicating a disciplined, risk-aware approach that favors broad exposure over concentrated bets. This construction reflects conviction in mega-cap growth leaders tempered by quantitative diversification across sectors and a consistent number of holdings near 1,800 positions over recent periods.