Semiconductor Stocks Steal the Spotlight From Big Tech in the AI Investment Boom

Chipmakers Are Leaving Big Tech in the Dust — And the Gap Is Growing

The artificial intelligence investment wave has produced a clear pecking order on Wall Street: semiconductor companies are pulling dramatically ahead of the Big Tech giants that once dominated market returns. Thursday's earnings-driven surge in Nvidia (NVDA) — nearly 9% in a single session — crystallized just how decisively the market's center of gravity has shifted.

Nvidia's Blowout Earnings Set the Tone

Nvidia's latest quarterly results were nothing short of remarkable. The chipmaker reported year-over-year sales growth of roughly 100% and delivered forward guidance that continued to impress investors already accustomed to outsized numbers. The ripple effect lifted the broader market, with the tech-focused Nasdaq Composite gaining 1.57% and the S&P 500 advancing 0.72% on the same day.

But Nvidia's own 22% year-to-date gain actually looks modest when stacked against its semiconductor peers.

The Numbers Tell a Striking Story

Some chipmakers have delivered returns that few investors would have dared to forecast. Micron Technology (MU) has surged approximately 220% this year, crossing the $1 trillion market capitalization milestone in May. Marvell Technology (MRVL) is up around 185%, and Intel (INTC) has gained roughly 150%. A popular exchange-traded fund tracking semiconductor stocks broadly has climbed 70% year-to-date.

The momentum has even spread internationally. South Korean chip giants SK Hynix and Samsung have helped propel the benchmark Kospi index to gains exceeding 60% this year.

To put that in context, a well-known ETF tracking the so-called Magnificent Seven — a basket that includes Alphabet (GOOG), Amazon (AMZN), Apple (AAPL), Microsoft (MSFT), Meta (META), Nvidia, and Tesla — has returned just 4% over the same period.

Why Chips Are Winning While Big Tech Wavers

The divergence comes down to where money is flowing in the AI buildout. Companies that supply the core hardware — processors, memory chips, and networking silicon — are capturing revenue directly from the massive capital spending underway at data centers globally. Analysts describe these firms as the "picks and shovels" providers of the AI infrastructure gold rush.

Big Tech, by contrast, is largely on the spending side of that equation. Meta (META) has seen its shares decline over the past year as the company pours tens of billions into AI infrastructure investment. Microsoft (MSFT) hit its last record high roughly 10 months ago and has gained only about 4% in 2026. Alphabet and Amazon are up approximately 8% and 11% respectively, but both remain well below their recent peaks — down about 15% and 10% from those highs.

Apple has been a relative bright spot among Big Tech with a roughly 16% gain, though that still trails chipmakers by a wide margin.

Chip and tech hardware stocks now account for nearly 45% of the Nasdaq 100's composition, while the semiconductor industry represents close to one-third of the entire S&P 500's market value, according to data from investment bank Stifel. Mike O'Rourke, chief market strategist at JonesTrading, estimates that chip stocks alone have accounted for 37% of the S&P 500's approximately $7.6 trillion in market value added this year.

Concentration Risk Is Drawing Attention

The same dynamic fueling these extraordinary gains is also generating caution among market watchers. When one sector accounts for such an outsized share of index performance, a stumble carries systemic implications.

"If the new market leaders, semiconductor firms, also start to struggle, the stock market would be in big trouble," James Reilly, senior markets economist at Capital Economics, wrote in a recent note.

Investors already caught a glimpse of that vulnerability. When Broadcom, a major semiconductor company, reported earnings in early June and its third-quarter chip revenue forecast came in slightly below expectations, the market's reaction was swift — shares fell nearly 20% over two trading sessions.

Thomas Carroll, an equity market strategist at Stifel, has drawn parallels between current AI-driven chip enthusiasm and the late 1990s tech mania. While Carroll indicated he remains long on these stocks, he noted he's keeping his "eyes wide open" to any signs that Big Tech could slow its AI spending — a development that could directly weigh on chipmakers' future earnings.

Matt Maley, chief market strategist at Miller Tabak + Co., offered a similarly measured view. "We have seen other cracks over the past year… and they have not upset the apple cart for very long. So, it would be foolish to try to say that the AI bubble is about to burst," Maley wrote, while adding that those cracks "have indeed appeared" and warrant close monitoring.

What Investors Are Watching

As earnings expectations continue to rise across the semiconductor space, the margin for disappointment narrows. Any slowdown in Big Tech's capital expenditures for AI infrastructure could cascade quickly into weaker demand forecasts for chip suppliers. Markets will be closely watching subsequent earnings cycles and any signals from major cloud providers about their data center spending plans — developments that could determine whether chipmakers maintain their lead or face a more challenging stretch ahead.