Shares surged to fresh records this week, pushing NVIDIA's market value to roughly $5.8 trillion and placing it on the doorstep of a milestone no public company has ever reached. The chipmaker is on the verge of becoming the first company with a $6 trillion market capitalization, with shares up 28% this year in a rally that has added $1.2 trillion to its value. For shareholders, the question is whether the math still works — or whether the stock is pricing in perfection.

  • Demand Is Outrunning Supply, and That's Keeping Prices High. NVIDIA reported second-quarter revenue of $96.2 billion — up 106% year over year — and disclosed that current supply meets only about 70% of customer demand, meaning the constraint on growth has shifted from finding buyers to making enough chips.

Gross margin held at 75%, and the company guided third-quarter revenue to $108 billion. When a company can't build fast enough to satisfy orders, it has unusual power to protect pricing — a direct support for profit margins.

  • The Biggest Buyback in History Puts a Floor Under the Stock. NVIDIA's board authorized a $150 billion increase to its share repurchase program on September 28, raising the remaining total to $235 billion — the largest buyback authorization in history.

The company expects to complete the program through fiscal 2028. Buybacks shrink the number of shares outstanding, so each remaining share represents a bigger slice of future earnings. At this scale, it signals management believes the stock is cheap relative to what it will earn.

  • A Forward P/E Below 15 Sounds Cheap — If Growth Holds. NVIDIA trades at a forward price-to-earnings ratio below 15 , meaning investors are paying less than $15 for every $1 of next year's expected profit. Wall Street analysts project $371 billion in revenue for fiscal year 2027, and at a 56% net income margin, that implies roughly $208 billion in earnings — enough to justify the $6 trillion price tag at 30 times trailing profits. The risk: any slowdown in AI spending would compress that earnings number fast.

  • One Stock Now Steers the Entire Market. NVIDIA's market cap accounts for about 13% of the Nasdaq Composite and 8% of the S&P 500.

That is the highest single-stock concentration in the S&P 500 since at least the 1970s.

NVIDIA is also by far the biggest contributor to the S&P 500's 14% gain in 2026. Every passive index-fund investor now has an outsized, involuntary bet on one chipmaker — a structural fragility that regulators and portfolio managers are watching closely.