Nvidia Reclaims a $5 Trillion Market Cap as Chipmakers Win the Quarter

Nvidia Reclaims a $5 Trillion Market Cap as Chipmakers Win the Quarter

Nvidia clawed its way back into the $5 trillion club on Friday, rising about 2.3% to push the chipmaker's market capitalization above the milestone once again and cap a quarter in which semiconductor stocks staged the most powerful rally in their history.

The move, on July 10, restored Nvidia's standing as the world's most valuable company after a bruising June selloff had briefly knocked it back below the threshold. It also underscored a broader truth that has defined 2026 markets: the money chasing artificial-intelligence infrastructure is not slowing down, and chipmakers are the biggest beneficiaries.

A record quarter for silicon

Nvidia's rebound is only the headline act. The Philadelphia Stock Exchange Semiconductor Index, known as the SOX, rose 87.8% in the second quarter that ended June 30 — its biggest quarterly gain in records stretching back to 1994, eclipsing even the dot-com era. The index has more than doubled in 2026, with the year only half over. For context, the Nasdaq-100 rose 25% over the same stretch and the S&P 500 gained 14%, according to data cited by BigGo Finance.

The standout winners were not the marquee AI-chip names investors expected, but memory and storage makers whose products face fixed supply and surging prices. Micron Technology has soared roughly 301% year-to-date, pushing its market value past $1 trillion. SanDisk skyrocketed 764%, and Intel jumped 257% on optimism over its foundry turnaround. Micron's numbers help explain the frenzy: in its fiscal third quarter, the company earned $25.11 a share, up from $1.91 a year earlier — a 1,215% jump — on revenue of $23.9 billion, and it guided to next-quarter revenue near $33 billion.

South Korea's SK Hynix, which supplied roughly $5.2 billion of high-bandwidth memory to Nvidia in the first quarter alone, is riding the same wave and pursuing a U.S. listing aimed at raising about $29.4 billion. Its entire 2026 HBM output is already sold out.

Why Nvidia lagged, then bounced

Here is the paradox: for much of the first half, Nvidia was actually the weakest name in the SOX, up just 4.5% year-to-date at the end of the quarter as capital rotated toward the memory bottleneck. Analysts say that reflects supply constraints rather than fading demand.

"Investors are chasing the bottleneck segments in semiconductors," said Sean Sun, portfolio manager at Thornburg Investment Management. "Right now, that bottleneck favors memory, and it also favors Intel's foundry revival story." Of the AI-chip leaders, Sun added: "Nvidia and Broadcom are running into supply chain bottleneck constraints. They're no longer the high-beta names they once were. I think they'll continue to perform reasonably well, but right now investors want beta exposure closer to the strongest themes."

Friday's 2.3% pop suggests some of that capital is rotating back, with buyers stepping into the bellwether after June's turbulence. Chip stocks endured a selloff early last month that erased more than $1 trillion in market value before rebounding on strong earnings.

Why it matters

The quarter is the clearest financial proof yet that the AI build-out has become, in Axios's words, likely the biggest investment boom in American history. The demand is anchored by the hyperscalers — Microsoft, Amazon, Alphabet and Meta — which remain committed to aggressive capital-spending plans that flow directly to chipmakers and their suppliers.

But the run-up has left valuations stretched and nerves frayed. The SOX trades at about 26 times forward earnings, above its 10-year average of 19, and the sector tumbled 7.9% in the final week of the quarter — its worst weekly drop since April 2025 — amid worries about memory pricing and a possible delay to OpenAI's IPO.

"Over the past six months, the market narrative has been all-in on AI infrastructure, but now people are starting to ask whether this is sustainable and if we should be worried," said CJ Muse, senior managing director and technology analyst at Cantor Fitzgerald. Even so, Sun argued the froth is contained: "Some chip stocks may already be pricing in perfection with limited margin for error, but overall, I would describe current valuations as 'stretched but not excessive.'"

What to watch next

The near-term signal is whether Nvidia can hold above $5 trillion rather than merely tag it. Volatility remains elevated — the Cboe semiconductor volatility gauge is up 83% this year — and hedge funds have been trimming tech exposure at the fastest pace in a decade. Watch the hyperscalers' upcoming capex guidance, SK Hynix's U.S. listing, and any firm date for OpenAI's IPO, all of which could set the tone for the second half. The Bank for International Settlements has flagged an AI-driven correction as one of its top risks. For now, though, the chipmakers own the quarter — and Nvidia, once again, owns the $5 trillion line.