For most of the last two years, a handful of giants did all the heavy lifting. Now the money is flowing in the opposite direction.
The shift has been sharp enough that strategists are starting to ask what it actually means.
The Russell 2000 - the index that tracks 2,000 small U.S. companies - has been outpacing the S&P 500 by roughly 8 percentage points year-to-date, gaining about 17.7% through late May versus 9.9% for the S&P 500. The Russell Microcap index is up around 21%, while the Russell Top 50 megacap gauge is up only about 6%.
For years, the Magnificent Seven (Apple, Microsoft, Nvidia, Alphabet, Amazon, Meta, and Tesla) carried the market on their own, with the rest of the index along for the ride.
That trade has cooled, sending investors down to smaller companies left behind for most of this cycle.
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Small-cap rallies usually start when investors are betting on rate cuts and cheaper money - not when the economy is firing on all cylinders.
Smaller companies carry more debt relative to their size than big ones, which means they benefit the most when borrowing costs fall.
So a sudden run in small caps often reflects what investors think the Fed will do more than how the underlying businesses are actually performing.
The catch: Sharp small-cap leadership has clustered near the back end of market cycles before, often ahead of broader market weakness.
A few things to keep an eye on in the coming weeks:
Whether the shift is broad across sectors or concentrated in rate-sensitive names like regional banks and small builders
What the Fed signals about the path of rate cuts at its next meeting
Whether the mega-caps stabilize or keep losing ground
The next Fed meeting will likely set the tone for how long this run lasts.
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