AI-driven rotation lifts small-cap tech stocks 15% in May

Small-cap technology stocks are rallying at their fastest pace in three years as the artificial intelligence frenzy pushes investors beyond the mega-cap names that dominated the sector's gains.

"Investors are realizing that the AI opportunity extends well beyond the hyperscalers and chip giants," said Sarah Lin, equity strategist at Edgen. "The search for the next wave of AI winners is pulling capital into smaller, more specialized technology companies."

The Russell 2000 technology sector has climbed 15% month-to-date, more than triple the S&P 500's 4.2% gain over the same period. The rally marks a sharp reversal for a segment that trailed the broader market by 22 percentage points over the past three years as institutional capital concentrated in Nvidia Corp., Intel Corp. and other large-cap AI beneficiaries.

Trading volumes in small-cap tech names have averaged 35% above their 20-day mean over the past two weeks, data compiled by Edgen show. The advance-decline ratio within the group has held above 3-to-1 for eight consecutive sessions, a breadth reading not seen since early 2021.

The rotation has been most pronounced in semiconductor equipment makers, AI software developers and data center infrastructure suppliers — sub-sectors where smaller players are gaining market share as enterprise AI adoption accelerates. The S&P 600 Information Technology Index has added 12% in May, while the Philadelphia Semiconductor Index's small-cap components have outpaced their large-cap peers by 8 percentage points.

Yields and the Dollar Add Tailwinds

The rally has been supported by a 12-basis-point decline in the 10-year U.S. Treasury yield this month to 4.18%, which has lowered the discount rate applied to the future cash flows of smaller, higher-growth companies. The Bloomberg Dollar Spot Index has slipped 1.1% in May, further reducing headwinds for U.S.-focused small caps relative to multinational mega-caps.

The Cboe Volatility Index has held below 16 for most of May, a level that historically correlates with increased risk appetite for smaller stocks. When the VIX trades below 18, small-cap indices have outperformed the S&P 500 by an average of 2.3% per month over the past decade, according to Edgen data.

The question for investors is whether the rotation has further to run. Small-cap tech valuations remain below their five-year average on a price-to-sales basis, even after the May surge, suggesting room for additional gains. The next catalyst comes June 4, when the ISM Services PMI reading will offer clues on enterprise spending trends that disproportionately affect smaller technology vendors.

This article is for informational purposes only and does not constitute investment advice.