Tim Cook Hands Apple to John Ternus Tuesday. Wall Street Asks If Apple Repeats Amazon's Post-Bezos Stock Slump

Tim Cook's tenure as Apple CEO officially ends Tuesday, September 1. John Ternus, Apple's SVP of hardware engineering since 2021, takes the wheel. Cook doesn't disappear, he moves into the newly created role of executive chairman, and according to Bloomberg's Mark Gurman, he'll keep handling Apple's relationship with the White House.

The transition was announced back in April, so nobody at Apple is scrambling. But the timing has analysts drawing comparisons to another handoff that didn't go so well for shareholders: Jeff Bezos leaving Amazon.

The Amazon comparison

Bezos stepped down as Amazon CEO in mid-2021. Since then, according to The Motley Fool's Reuben Gregg Brewer, Amazon's total return is up roughly 50%. Compare that to the Nasdaq-100, up more than 100% over the same stretch, and the S&P 500, up roughly 90%. Amazon, now a $2.8 trillion company according to Brewer's analysis, has lagged the broader market by a wide margin under CEO Andy Jassy.

Brewer's argument is that Amazon's size is part of the problem. It's simply harder to grow a $2.8 trillion business than the scrappier company Bezos ran. He also notes Amazon is still pouring money into AI infrastructure, an expected $220 billion in 2026 alone, and has kept its position as an industry leader even while its stock underperformed.

The question Brewer poses, not an answer he claims to have, is whether Apple is set up for the same fate. He's careful to frame it as a possibility, not a prediction.

Apple's different bet

Cook built Apple's AI strategy around using AI to improve its existing products, not around building hyperscale data centers the way Amazon, Microsoft, and Google have. Brewer lays out both sides of that bet plainly: the benefit is Apple isn't burning capital on AI infrastructure at the scale its competitors are. The risk is Apple could get left behind in a market moving fast.

That concern is worth examining. Skeptics of Cook's approach have a real argument: if generative AI becomes the dominant interface for computing, a company that didn't build its own compute stack could find itself dependent on rivals for the infrastructure that matters most.

The market's verdict so far suggests caution about that scenario. Brewer notes Apple's stock is trading within 10% of its all-time high heading into the CEO transition. If investors expected an Amazon-style multi-year slump, that price wouldn't be sitting near a record.

Amazon and Apple aren't the same kind of business, and 2021-2026 isn't a repeat of whatever stretch comes next. Correlation between a CEO exit and a stock's multi-year trajectory isn't proof the exit caused the trajectory. Amazon's slower growth also reflects its sheer size, competitive dynamics in cloud and retail, and the specific decisions Jassy made, not just the fact that Bezos left the building.

What's actually different this time

Cook isn't leaving the company. Gurman has reported Cook will stay closely involved, including on Washington relations, while Ternus runs product and engineering decisions day to day. Gurman has also reported, citing sources inside the company, that Ternus recognizes a design shake-up is needed at Apple after what Gurman calls Cook's "historically limited presence" in that area.

Apple's near-term test comes fast. The company holds its next big product event September 9, where the iPhone 18 Pro lineup, a long-rumored foldable device, and a next-generation Apple Watch are all expected to debut, according to PCMag. Apple is also managing a memory supply shortage that has pushed prices up across nearly its entire product line, PCMag reported, even as the iPhone 17 held the top spot as the world's best-selling smartphone in the second quarter of 2026, commanding 6% of global sales according to Counterpoint Research.

None of that resolves the Amazon question. The first real data point on Ternus's Apple won't come from a stock chart. It'll come September 9, in a room in California, when Wall Street sees what an Apple without Tim Cook at the top actually decides to ship.