There is a running joke on Wall Street that you do not buy a semiconductor stock anymore; you buy Nvidia (NASDAQ:NVDA) and hope the neighbors benefit from it. It sounds like an exaggeration until you look at the numbers. The PHLX Semiconductor Index, the broadest benchmark for the chip industry, has surged more than 65% year-to-date in 2026. That performance gap versus the S&P 500 is the widest it has been in over a year, and at the center of the story, whether directly or indirectly, sits Nvidia.

That single company, once a niche maker of graphics cards for video game enthusiasts, has quietly rewired the economics of an entire industry. When Nvidia catches a tailwind, the whole sector feels it. When it stumbles, every chip maker braces for impact. Understanding how that gravitational pull works tells you a great deal about where the semiconductor market is headed.

A Trillion-Dollar Tide Lifting All Boats

The numbers behind the sector’s rise are staggering. Total global semiconductor revenue stood at $791.7 billion in 2025. This year, the Semiconductor Industry Association projects that figure will climb another 26%, pushing the industry past the $1 trillion mark for the very first time. Bank of America went further, raising its forecast to $1.3 trillion for 2026, a revision that was $300 billion higher than the bank’s own estimates just four months earlier, projecting a $2 trillion market by 2030.

The engine behind all of this is artificial intelligence. Microsoft, Google, Amazon, and Meta are collectively pouring hundreds of billions of dollars into AI data center infrastructure, and every one of those data centers runs on chips. Nvidia’s GPUs are the dominant choice for both training and running AI models, giving the company an estimated 81% share of the AI accelerator market. That dominance means that whenever a hyperscaler announces a new AI investment, traders instinctively reach for Nvidia first , and then start working their way down the supply chain.

From Jensen’s Desk to the Entire Value Chain

Nvidia’s fiscal year 2026, which ended in January, produced revenue of $215.9 billion, a 65% increase year over year. Earnings per share climbed 60% to $4.77. CEO Jensen Huang has been clear about where things are going next, projecting that global data center operators could spend up to $4 trillion annually by 2030 to meet AI demand.

That kind of forecast does not just move Nvidia’s stock. It moves the entire ecosystem around it. AMD reported first-quarter 2026 revenue of $10.25 billion, with its data-center segment posting a 57% surge year over year. More than 20 brokerage firms raised their price targets on AMD after that single report. Micron Technology, which makes the high-bandwidth memory chips that sit alongside Nvidia’s GPUs in AI servers, posted its strongest five-day trading performance since 2008, gaining 30% in a single week on AI memory demand alone.

Even Corning, a 175-year-old glassmaker better known for iPhone screens has been swept into the Nvidia wave. Nvidia recently signed a major optical fiber deal with Corning, funded the construction of three new manufacturing facilities, and secured an option to acquire a $3 billion equity stake in the company. Corning’s optical communications business generated $1.8 billion in revenue during the first quarter of 2026, growing 36% year over year.

Wall Street Is Paying Attention and Raising Flags

Nvidia currently holds 48 buy ratings, 4 strong buys, 2 holds, and zero sell recommendations from Wall Street analysts, the most uniformly bullish sentiment of any chip stock. Goldman Sachs carries a 12-month price target of $250 on the shares.

Yet not everyone is comfortable with the pace of the rally. Analyst Jonathan Krinsky at BTIG recently noted that the PHLX Semiconductor Index now trades 36% above its 50-day moving average, a level seen only twice in the past 30 years. He drew a direct comparison to 1999 and warned of a potential 25% to 30% correction if AI spending expectations hit any kind of speed bump. The concern is not that AI demand is manufactured. The demand is real. The worry is that stock prices may have outrun even the most optimistic earnings forecasts.

Still Nvidia’s World

What makes Nvidia’s position durable is that it is no longer just a hardware company. Its CUDA software platform, NVLink networking architecture, and growing footprint in physical AI have built layers of lock-in that competitors will not easily replicate. For the semiconductor sector, that is both a strength and a risk: a strength because Nvidia’s dominance keeps capital flowing into chip infrastructure at a pace that lifts dozens of companies and a risk because when one name drives so much of the narrative, the fortunes of many become tied to the fate of one.

For now, the tide is still rising. And the engine doing all the lifting still carries the same name it has for the past three years.

Benzinga Disclaimer: This article is from an unpaid external contributor. It does not represent Benzinga’s reporting and has not been edited for content or accuracy.