William Kerwin, CFA
William Kerwin, CFA, is a senior equity analyst for Morningstar.
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Broadcom: Jalapeno Adds Bullish Spice to Our Conviction in This Top Pick
We expect immense growth for Broadcom through 2028

Micron Earnings: What Goes Up Must Come Down … Eventually
We’ve significantly raised our fair value estimate of Micron stock, but still see it as overvalued.

Apple: Pulling the Pricing Lever
We’ve raised our fair value estimate for Apple stock, and we now believe it looks fairly valued.

This AI Winner Has Been Unstoppable. Is It Time to Sell?
Astonishing results have driven this AI stock into significantly overvalued territory.

Marvell Earnings: Firm Is Not Blinking
We’ve raised our fair value estimate of Marvell stock.

Applied Materials Earnings: It Just Keeps Accelerating
Raising our fair value estimate on Applied Materials stock.

Apple Earnings: Let the iPhone 17 Cycle Rip
We raise our fair value estimate for Apple stock.

This Quality Stock Trades at a Surprising Discount. Is It a Must-Buy?
Trading 24% below fair value, this wide-moat stock has significant upside, in our view.

Apple Names New CEO as Tim Cook Steps Aside After 15 Years
John Ternus, Apple’s hardware chief, will take up the role in September.

Broadcom: Latest Announcement From Meta Aligns With Our Bullish XPU Call
We think Broadcom stock is moderately undervalued.

Marvell Earnings: Take the Hint—Emphatic Long-Term Guidance Is Credible and Worth Buying In
We raise our fair value estimate for Marvell stock.

Broadcom Earnings: Raising Fair Value Estimate on Strong 2027 Guidance
We see immense upside for investors in Broadcom stock.

Apple: March Releases, Including Brand-New MacBook Neo, Keep Pricing Low Despite Memory Inflation
We believe Apple’s premium prices have built-in buffers for component cost inflation and that it receives best-in-class contract pricing for memory.

Apple Earnings: Prolific Quarter Portends Terrific 2026 Growth
We think Apple stock is fairly valued.

BlackBerry: Strong QNX Strategy Bolstered by Alloy Kore Announcement at CES
The announcements aligned with our long-term view of a strong growth trajectory for QNX.

BlackBerry Earnings: We Like Continued Focus on Organic Growth, Profitability, and Cash Flow
We see most of BlackBerry’s valuation driven by organic growth in QNX.

Broadcom Earnings: Buy the Dip Before the Rocket Takes Off
We raise our fair value estimate.

BlackBerry Earnings: Profit and Cash Flow Lead Good Results
We’ve raised our fair value estimate of BlackBerry stock.

Micron Earnings: Impressive AI-Driven Pricing Beat Guidance
We’ve raised our fair value estimate for Micron stock.

Apple’s New Air Model Is Attractive, but Unlikely To Spur Big Growth
We like Apple’s AI features, but see them as incremental improvements.

Broadcom Earnings: Buckle Up, Torrid AI Growth Is Accelerating
We raise our fair value estimate for Broadcom stock.

Apple: Another USD 100 Billion Looks to Be Enough to Avoid US Tariffs
The announcement fits with our expectations for Apple to earn a long-term tariff exemption.

Apple Earnings: Strong iPhone Beat Brings Our Valuation Up and Tariff Costs Prove Light for Now
We think Apple stock looks fairly valued.

BlackBerry Earnings: Good Execution, but Consistent Soft 2026 Outlook
We continue to appreciate BlackBerry’s march to improved profitability.

Apple: Glassy Redesign and More Generative AI Features Make For an Incremental but Positive WWDC
We believe AI is helping Apple develop new and convenient features more quickly.


