SPY Is Now A Tech ETF: Building A Quantitatively Optimized 'Strong Buy' Alternative

2026-03-05 13:49:07 ET

Introduction

The S&P 500 is currently historically concentrated in the largest companies. In the last ten years, that trend has been a huge tailwind for passive ETF investors, as more of their capital was unwittingly allocated to mega-cap stocks experiencing huge growth. However, with the S&P so heavily concentrated in the top few stocks by market cap, the pendulum may be ready to swing back in the other direction, favoring custom portfolio construction once again....

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