The Rotation Taking Shape in U.S. Equities: Insights from the Barron’s 400 Index

Through February 10, 2026, the divergence between the two versions of the Barron’s 400 Index has become difficult to ignore. The equally weighted version is up 6.2% on a price return basis, while the market cap weighted version is down 0.9%. That nearly seven percentage point gap over a short period offers a clear and measurable lens into the evolving leadership structure of U.S. equities.

The average stock in the index is up 5.9% year to date, and the median stock has gained 6.9%. In other words, the typical constituent is participating in the advance, even as the capitalization weighted version lags. This suggests that performance is no longer being driven by the largest companies alone.

The structural differences between the two versions of the Barron’s 400 help explain why. In the market cap weighted version, the top 10 stocks account for 58.6% of total index weight. In the equally weighted version, those same companies represent just 2.44%. Year to date, the top 10 stocks have posted an average return of -2.3%.

The concentration extends beyond the top 10. The top 50 stocks account for 81.7% of the weight in the capitalization weighted index, compared with just 12.7% in the equally weighted version. These 50 stocks have delivered an average return of 1.3%, which is 4.6 percentage points below the average return of all stocks in the index this year. When leadership narrows, concentration amplifies returns. When leadership broadens, concentration becomes a constraint.

Evidence of broader participation is visible across the index. Twenty five stocks have gained at least 30% year to date, averaging 39.4%. Collectively, these companies represent only 3.27% of the capitalization weighted version of the index but 8.4% of the equally weighted version. The equally weighted structure therefore provides materially greater representation to some of the strongest performers in the index.

The same dynamic is evident when examining dispersion more broadly. The 197 stocks trading above the median are up an average of 18.6% year to date. Their aggregate weight in the capitalization weighted index is just 23.5%. In contrast, those same companies represent 55.42% of the equally weighted version. Meanwhile, the 198 stocks below the median are down an average of 6.7%, yet account for 75.9% of the weight in the capitalization weighted version compared with 43% in the equally weighted structure.

It would be tempting to frame this entirely as a shift from large companies toward smaller ones. However, the data suggests a more nuanced story. The index’s average market capitalization is $85.46 billion and the median is $11.88 billion. The 197 companies above the market cap median have delivered an average year to date return of 6.3%. The 198 companies below the median have returned 5.6%, only slightly lower. The rotation underway is not simply about size. Sector exposure plays a meaningful role. Figure 1 summarizes the sector composition and performance differences between the two versions of the index.

Figure 1. Barron’s 400 Index Sector Composition and YTD Performance (through Feb. 10, 2026)

The table highlights several important patterns. Technology accounts for 56.7% of the weight in the capitalization weighted index but just 16.2% in the equally weighted version. Technology has been the weakest performing sector this year, with an average decline of 4.0%. That concentration has weighed heavily on the capitalization weighted index.

Industrials, Energy, and Materials have been among the stronger performing sectors. Industrials, the third best performing sector with an average gain of 13.5%, contains 81 companies in the index. Yet those companies account for only 9.4% of the capitalization weighted version compared with 21.7% of the equally weighted version. Energy and Materials show similar patterns, with meaningfully higher representation in the equally weighted structure.

Within Technology, the Software industry illustrates the pressure facing large segments of the market. The index includes 29 Software companies with an average market capitalization of $174 billion. Their aggregate weight in the capitalization weighted version is 14.7%, compared with 5.3% in the equally weighted version. These stocks have declined by an average of 13.6% since the beginning of the year.

Part of this shift appears linked to evolving investor views around artificial intelligence. AI has increasingly become embedded across industries, and investors have begun reassessing which business models stand to benefit most directly. In particular, some market participants have expressed concern that certain software applications could lose users or see portions of their functionality displaced as AI-driven tools gain adoption. Whether or not that view proves correct over time, it has clearly influenced capital flows so far this year.

At the same time, the broader economic backdrop remains constructive. The U.S. economy has continued to show resilience, monetary policy has been easing, and the tax package passed last year is expected to incentivize domestic investment and support the buildout of U.S. industry at large. Those conditions have provided a favorable environment for sectors tied to capital investment, industrial activity, and energy production.

Taken together, these developments suggest that performance in 2026 has been characterized by broader participation across sectors and industries rather than dominance by a narrow group of mega cap technology stocks. In such an environment, weighting methodology matters. Equal weighting reduces reliance on the largest constituents and increases exposure to a wider cross section of companies across sectors and market capitalization segments.

For investors who believe the U.S. economy remains on solid footing and that leadership may continue to broaden, a diversified exposure across sectors and industries may be an appealing approach. The Barron’s 400 Equal Weight Index reflects that broader construction.

Note: The Barron’s 400 Index (equally weighted) is tracked by the Barron’s 400 ETF (NYSE Arca: BFOR), which is offered by SS&C ALPS Advisors. The fund, categorized by Morningstar as a Mid-Cap Blend Fund, has 4-Star Rating.