Brian Colello, CPA
Brian Colello, CPA, is a senior equity analyst for Morningstar.
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More From Brian Colello, CPA

Nvidia: Reported OpenAI Deal Raises Circular Deal Fears, but We Think the Stock Is Undervalued
We think Nvidia’s backstop agreements will let it sell more AI gear and encourage more AI usage.

Nvidia: The AI Champion’s Stock Is Too Cheap to Ignore
Even as competition looks likely to build, the company remains a leading wide-moat business securely at the center of the AI ecosystem.

Nvidia: Entry Into the PC Market Announced at Computex; Shares Undervalued
We remain impressed with Nvidia’s ability to elbow out into adjacent opportunities.

Nvidia Earnings: Massive AI Adoption Remains On Track; Shares Undervalued
We raise our fair value estimate for wide-moat Nvidia.

Ahead of Earnings, Is Nvidia Stock a Buy, a Sell, or Fairly Valued?
Amid robust demand for semis, watch for any impact of in-house built chips and whether the supply chain is on track.

Intel: Raising Our Fair Value Estimate on Increased Server CPU Optimism
We still think Intel stock is a bit overvalued.

Intel Earnings: A Stellar Quarter With Agentic AI Tailwinds
We raise our fair value estimate for Intel stock.

Nvidia: Raising Fair Value as ‘Agentic AI’ Drives a $1 Trillion Forecast at GTC
We think Nvidia stock is undervalued.

Nvidia Earnings: Another Stellar Quarter With No Signs of a Slowdown
We think Nvidia stock is moderately undervalued.

AMD: Meta Agrees to Be the Firm’s Second Large AI Customer
We’ve raised our fair value estimate of AMD stock on the news.

Ahead of Earnings, Is Nvidia Stock a Buy, a Sell, or Fairly Valued?
From AI infrastructure spending to international sales, here’s what we’re looking for in Nvidia’s upcoming earnings report.

As Tech Stocks Churn, Nvidia and Other Semiconductor Plays Look Cheap
Fears of an AI bubble are sparking tech selloffs. That’s changing the calculus for once-pricy semiconductor stocks, Morningstar analysts say.

AMD Earnings: Data Center Demand Still Looks Quite Strong to Us
We think Advanced Micro Devices stock is fairly valued.

An Overpriced Stock to Avoid Even After Its Pullback
Overvalued by 33%, this tech stock has benefited from the AI trade.

Intel Earnings: Q1 Data Center Revenue Guidance Was a Letdown; Shares Overvalued
We raise our fair value estimate for Intel stock.

Nvidia: Full Steam Ahead With an Impressive Array of Announcements at CES 2026
We think Nvidia stock is moderately undervalued.

Why Betting Against Nvidia in the AI Arms Race Could Be a Mistake
Plus, two affordable AI stocks and what investors need to know before 2026.

Nvidia: Approval to Sell H200 AI Accelerators Into China Appears Forthcoming
We maintain our fair value estimate for Nvidia stock.

Nvidia and AMD: Maintain Fair Value Estimate Amid Reports of Meta’s Negotiations to Buy Google TPUs
Our update on select stocks from the Semiconductors industry.

Nvidia Earnings: No Signs of a Near-Term AI Bubble; Raising Fair Value
We think Nvidia stock is moderately undervalued.

Ahead of Earnings, Is Nvidia Stock a Buy, a Sell, or Fairly Valued?
With outstanding long-term estimates, here’s what we think of Nvidia stock.

Nvidia: We’re Impressed With Visibility Into 2026 Revenue; Raising Fair Value
We think Nvidia stock is fairly valued.

Intel Earnings: Relatively Strong, but Turnaround Risks Remain; $28 Fair Value Maintained
We think Intel stock is moderately overvalued.

What Are Circular AI Chip Deals, and Should Investors Be Worried?
Agreements like the ones involving Nvidia and AMD are worth watching, but for now, they’re not alarming.

AMD: The Company Has Arrived in AI With a Massive OpenAI Deal
We think Advanced Micro Devices stock is fairly valued.

