The AI Spending Spree Hits a Wall

Investors are taking a harder look at the ballooning expenses of tech giants, and it’s clear that the era of unlimited spending on artificial intelligence and data centers has come to an abrupt end. Alphabet’s recent report, which sparked a sell-off across the board, serves as a harbinger for what’s in store for Amazon, Meta, and Microsoft when they report their quarterly results this week.

Just last year, companies like Google were lauded for their willingness to invest heavily in AI. But now, with cash piles dwindling and returns uncertain, investors are questioning whether these behemoths can sustain their breakneck pace of spending. Alphabet’s decision to boost its 2026 capital expenditures forecast is a prime example of this shift.

Analysts are sounding the alarm, fearing that other companies may follow suit and invite more selling pressure on the stock. Mark Mahaney, head of internet research at Evercore ISI, notes that Alphabet’s capex boost increases the odds of similar behavior from Amazon and Microsoft. A potential capex boost from Amazon could spell trouble for investors, who have grown wary of the company’s increasingly aggressive spending on AI and custom chips.

The era of “growth at all costs” is over. As Jake Dollarhide, CEO of Longbow Asset Management, notes, there’s growing “AI fatigue” among investors, who are now questioning whether companies can deliver returns on their massive investments in data centers and AI. Amazon’s long-term debt shot up 81% to $119 billion from December 31 to March 31, while Alphabet’s rose 111% to $98 billion during the first six months of 2026.

However, not all analysts are convinced that this trend is irreversible. Wedbush analysts argue that a potential capex boost from Amazon would be worthwhile given AWS’s re-acceleration and Amazon’s expanding platform advantages across Bedrock, Alexa, and its logistics network. Still, they acknowledge the challenges ahead: as capacity remains constrained in the face of strong demand, companies will have to justify their spending sprees to an increasingly skeptical investor base.

Tiffany Wade, a fund manager at Columbia Threadneedle, notes that patience is required for these names because “I think that these will be AI winners over sort of the medium and longer term.” But with free cash flow turning negative for Amazon and analysts forecasting similar trends for Microsoft, it’s clear that investors are no longer willing to give companies a free pass on their spending.

The era of unlimited spending on AI may be coming to an end, but what replaces it remains to be seen. As companies struggle to justify their massive investments in data centers and AI, one thing is certain: the days of “growth at all costs” are behind us.