S&P 500, Nasdaq Composite Drift Sideways as $3.2 Trillion Shifts From Chip Stocks to Magnificent Seven

The S&P 500 has traded in a tight range for months. Beneath that calm surface, $3.2 trillion has rotated between the Magnificent Seven and chip stocks outside Nvidia. This massive shift has largely canceled itself out at the index level. Traders are watching closely as earnings season could finally break the stalemate. The Nasdaq Composite shows the same pattern of quiet churn. 

A $3.2 Trillion Rotation Under the Surface

The S&P 500 and Nasdaq (NSDQ) Composite have been stuck for months. Investors have not exited stocks. They have simply swapped exposure between two crowded corners of the market. The Magnificent Seven have added about $1.5 trillion in market value in July, while semiconductor names outside Nvidia lost ground fast.

Semiconductor stocks excluding Nvidia have erased nearly $1.8 trillion in the same window. That imbalance explains why the S&P 500 keeps churning without a clear breakout. The rotation is broad, not isolated to a few names:

• Software stocks: 44 of 51 names in the Yahoo Finance industry basket are positive in July
• Median software gain: roughly 6% for the month 
• Semiconductors: only a handful of 62 stocks tracked are higher 

Magnificent Seven Post Big July Gains

Big Tech names are pulling their weight this month. Amazon and Alphabet moved up around 3%, while Microsoft was higher by nearly 3% during Wednesday’s session alone. Apple (NASDAQ: AAPL) gained 4%, hitting a new all-time high, showing fresh investor confidence in the stock. 

The group’s scale remains staggering. The Magnificent Seven stocks had a combined market cap of $22 trillion as of July 2026, making up nearly a third of the S&P 500. Nvidia is now the largest contributor, accounting for more than 21% of the group’s total value. This concentration keeps the S&P 500 sensitive to any single Mag Seven earnings surprise.

Everyone is crowded into semiconductors which now represent 20% of the S&P 500.

Meanwhile the other 80% of the market is the most ignored it’s ever been.

That’s usually where I start looking.

Not to fight the semi trend, but because the best entries come from the sectors… pic.twitter.com/xAoAtdnDAD

— Rand Group (@randgroup) July 16, 2026

Chip Stocks Bear the Brunt of Selling

Semiconductor names have not fared as well this month. Micron Technology shares declined 8%, while Lam Research shares were down 3%, as were those of Advanced Micro Devices on July 15. That single session captured the broader chip-sector pain.

Sentiment data backs up the shift away from chips:

• 82% of asset managers surveyed by Bank of America call chipmaker stocks the most overbought trade on Wall Street 
• The Philadelphia Semiconductor Index (SOX) has risen 79% since the start of the year
• The broader S&P 500 has climbed only about 10% over the same stretch

Even strong earnings have not rescued the group. A gauge of semiconductor firms sank over 4.5% even after Samsung Electronics posted a record profit. That disconnect shows how stretched chip valuations had become before the pullback.

S&P 500 and Nasdaq Composite Hold Steady Ranges

Despite the internal churn, headline index moves stay muted. The S&P 500 has spent more than two months bouncing between support and resistance since entering the range in early May. The Nasdaq Composite has followed a nearly identical pattern over the same period. 

The Dow tells a different story entirely. The Dow has barely budged in July, even as Apple, Goldman Sachs, and Chevron have broken away from the pack. This divergence highlights how narrow leadership remains, even during a broad rotation.

Wednesday’s Session Highlights the Divide

Wednesday’s close captured the current standoff clearly. The S&P 500 gained 0.38% to close at 7,572.40, while the Nasdaq Composite advanced 0.62% to 26,269.23. The Dow Jones (^DJI) Industrial Average added 150.37 points, or 0.29%, to end at 52,658.64.

Nvidia was the biggest positive contributor to both the S&P 500 and Nasdaq-100, while IBM and Microsoft weighed on the indexes. Nvidia’s forward P/E of 18 remains below the S&P 500’s 20 and the Nasdaq-100’s 23, attracting value-focused investors.

Final Thoughts

The S&P 500 and Nasdaq Composite continue to move sideways during July trading. Underneath, capital keeps swapping between Magnificent Seven giants and semiconductor names outside Nvidia. Earnings season now looks like the catalyst that could finally break this standoff one way or the other.

Disclaimer:

The content shared by Meyka AI PTY LTD is for research and informational purposes only. Meyka is not a financial advisory service, and the information provided should not be treated as investment or trading advice.