Mag 7, Memory and Semiconductors: The Quiet Market Rotation

The Mag 7 has been the single largest driver of the stock market’s performance three straight years, accounting for over 20% of the S&P 500’s performance. However, there is a performance divergence happening in 2026 as the S&P 500 continues to go up, while the Mag7 go down.

Through late June, the Magnificent Seven stocks are down roughly 1% as a basket while the S&P 500 has returned over 7%. So the group, that many analysts said was a risk to the market’s long-term upside, is now the one visibly trailing it. And more importantly, the market is still going higher.

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This divergence is not a short-term distortion. Instead, it’s a signal that:

  1. There is a new leadership forming in the broader market (more on this below)
  2. The market’s reliance on the Mag7 is not as significant as feared, and
  3. There is widening breadth in the S&P 500

At the beginning of 2026 we said “Returns must be Earned” (2026 Outlook Interview with FintechTV – Returns Must be Earned) this year. So far, that’s not happening with the Mag7. While the group’s earnings growth is still positive in 2026, it is decelerating, running at a pace barely ahead of the other 493 companies in the index, and the market is pricing the deceleration, not the level.