Russell 2000 Surges 20% in 2026, Best Year Since 2003

The Russell 2000 index has increased by 20% in 2026, marking its best performance since 2003. Unprofitable companies within this index have risen 154% since mid-2025, outpacing profitable firms that gained 34%. As investors prioritize AI exposure over current earnings, this trend highlights a shift in market dynamics. The index's performance contrasts with the S&P 500's 11% rise and the 4% growth of major tech stocks. This matters for ordinary investors as it signals a new opportunity to explore small-cap stocks benefiting from AI infrastructure investments.