Microsoft and Amazon Downgraded as Redburn Challenges Wall Street’s AI Optimism

Two of the most widely favored tech giants—Microsoft and Amazon—were unexpectedly downgraded as an influential analyst warned that the bullish narrative around generative AI may no longer hold up.
The move represents one of the first major breaks from Wall Street’s overwhelmingly positive stance on the companies.

Redburn Cuts Ratings Over Concerns About AI’s True Economics

Alexander Haissl of Rothschild & Co Redburn lowered both Microsoft and Amazon from buy to neutral, marking his first downgrade of the stocks since he began coverage in mid-2022.
Both companies traded more than 2% lower in New York following the announcement.

Haissl argued that the popular industry narrative—claiming generative AI will mirror early cloud-computing growth—now appears misguided. According to him, Gen-AI’s underlying economics are significantly weaker than widely assumed, especially when viewed alongside rising capital expenditures.

AI Stock Pullback Adds Pressure to Big Tech

The downgrade follows a broader decline in the Nasdaq 100, which has lost nearly $1.8 trillion in value since late October.
Investors have increasingly stepped back from high-flying AI-related stocks amid concerns about:

stretched valuations
escalating infrastructure costs
unclear monetization paths

Despite this, more than 90% of Wall Street analysts still maintain buy-equivalent ratings on Microsoft and Amazon—with zero sell ratings on either stock.

A Non-Traditional Analyst Breaking Consensus

Haissl brings an unconventional background to tech equity research.
Before roles as head of automotive research at Berenberg and Credit Suisse, he previously worked as a police officer in Vienna.
He joined Redburn in 2022 and initially rated both Microsoft and Amazon as buys due to their cloud-computing runway.

Since his initial call:

Amazon has more than doubled
Microsoft has surged 98%

His coverage is selective, focusing on only a few tech names—including Oracle, Snowflake, and MongoDB.

Capital Intensity and Depreciation: The Core Red Flags

A major concern highlighted by Haissl is the rapid depreciation of AI-related hardware.
Tech companies are pouring tens of billions into GPUs, servers, and data-center infrastructure. But as these assets lose value fast, profitability becomes harder to sustain.

Haissl noted:

Gen-AI margins assume 5–6 year depreciation, much longer than the early cloud era’s 3-year cycle
Higher depreciation means higher capital intensity
Pricing power for AI services remains weakening, not strengthening

The fear: companies may end up overbuilding expensive infrastructure before proving the economic viability of Gen-AI.

Even hedge-fund manager Michael Burry has posted cryptic warnings about tech-sector depreciation risks.

Price Targets and Peer Momentum Shift

Redburn lowered Microsoft’s price target from $560 to $500, while keeping Amazon’s at $250.
Analyst sentiment remains overwhelmingly positive:

Microsoft: 71 buys, 2 holds, 0 sells
Amazon: 80 buys, 5 holds, 0 sells

In contrast, Alphabet received a boost, with Loop Capital upgrading the stock to buy. Alphabet has been the top performer among the Magnificent Seven, climbing 49% this year.

Redburn’s Track Record: Deep Research and Bold Calls

Redburn is known for deep-dive analytical reports that often run dozens of pages.
Just last month, analyst Dominic Ball correctly predicted a major drop in Fiserv Inc., standing as the only analyst with a sell rating before its sharp slide.

Bottom Line: A Warning Shot for AI-Driven Tech Stocks

The downgrade of Microsoft and Amazon highlights growing skepticism toward the profitability of generative AI—one of the biggest themes driving tech valuations.
While both companies remain dominant players, this call signals that investors may need to temper expectations as the true economics of AI become clearer.