Small-Cap Stocks Rally in 2026 as Valuation Gap Hits Deepest Since Late 1990s

9 articles · Updated · Wealth Management · May 12

Small-cap shares have regained momentum in 2026, with investors rotating into the sector as their valuation discount versus large-caps widens to its deepest level since the late 1990s.
Forward earnings estimates are increasingly favoring small- and mid-cap companies, helping fuel the rebound after more than a decade of large-cap dominance.
AI-linked names in network hardware, energy supply and quantum computing are leading much of the advance, but many of those early-stage or cyclical companies still generate little or no earnings and require heavy capital.
The report argues this resembles past small-cap “junk rallies,” when speculative stocks surged early but often lagged later unless fundamentals improved.
For longer-term investors, the opportunity may lie in actively selecting profitable, conservatively financed small-caps rather than buying broad indexes, where large-cap benchmarks remain concentrated and the Russell 2000 still includes many lossmaking companies.

Is this small-cap 'junk rally' a bubble, or are AI stocks justifiably rewriting the rules of investing?

Beyond the AI hype, where are the hidden small-caps that could deliver the next decade's biggest returns?

With stimulus cash and rate cuts fueling the market, are small-cap valuations sustainable or headed for a sharp correction?