Nvidia, Broadcom and Micron Shares on the Move: What COMPUTEX 2026 Means for AI Chip Stocks

AI chip stocks are back in the spotlight this week, and for good reason. COMPUTEX 2026, one of the world’s biggest technology shows, is underway in Taipei, with Nvidia (NASDAQ: NVDA) chief executive Jensen Huang delivering a headline keynote.

Add Broadcom’s (NASDAQ: AVGO) earnings due on 3 June and a surprise chip launch from Samsung (KRX: 005930), and the AI semiconductor trade has plenty to move it. In our view, this week is a useful test of whether the AI rally still has momentum or whether expectations have run too far ahead of reality.

The Catalysts Driving AI Chip Stocks This Week

Three events are doing the heavy lifting.

First, Nvidia’s COMPUTEX keynote. Huang is expected to showcase the company’s next wave of AI and robotics technology. With Nvidia now worth more than US$5 trillion, every product hint matters. This suggests the market is watching for evidence that demand can keep growing from already-enormous levels.

Second, Broadcom reports on 3 June. Analysts expect revenue of around US$22 billion, up 47% on last year, with AI-related sales jumping roughly 140% to US$10.7 billion. That is a big number, and the question is simple: beat or miss? Because Broadcom has run hard this year, the bar is high, and even a small disappointment could spark profit-taking.

Third, the memory race. Samsung shipped the world’s first samples of its next-generation HBM4E AI memory to global customers, a move to win back ground after falling behind rivals Micron and SK Hynix. There was also a vote of confidence from AI company Anthropic, which named Samsung, Micron and SK Hynix as key partners in its latest funding round. That helped lift Samsung’s shares, and it tells investors something simple but important: the big AI players are locking in their memory suppliers early.

Even so, Micron has been the standout performer, recently joining the US$1 trillion club after its best month since 1985, driven by a shortage of the high-speed memory that AI needs. For investors, this shows just how tight the memory supply has become.

NVIDIA’s Dominance vs the Rising Competition

NVIDIA still sits at the centre of the AI world. Its chips power most large AI systems, and its software keeps customers locked in, giving it a genuine moat. But the competition is closing in.

The biggest threat is “custom silicon”, chips that giants like Google and Amazon design themselves. This portion of the AI accelerator market is forecast to grow from around 21% in 2025 to nearly 28% in 2026. That may sound technical, but the implication is clear: Nvidia’s largest customers want to rely on it less.

This is where Broadcom and Micron fit in. Broadcom helps build those custom chips, while Micron supplies the memory nearly every AI system needs. In our view, that makes both strong ways to back the AI theme without betting on Nvidia alone.

The Investor’s Takeaway for AI Chip Stocks

The bull case is powerful, but valuations look stretched. AI spending is tipped to reach around US$670 billion in 2026, and mega-cap technology and AI stocks now dominate the market, with the tech sector alone making up over 30% of the S&P 500. That concentration is the key risk: if AI spending slows, the fall could be sharp, and these names would likely lead it down.

For long-term investors who believe in the AI build-out, pullbacks may offer better entry points than chasing strength. More cautious investors may prefer to wait for this week’s results before acting. Either way, watch Broadcom’s earnings on 3 June closely. It is the clearest near-term signal of whether AI demand is still accelerating.