AI frenzy hides an inflation time bomb—is this the most underestimated risk of 2026?

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Although the global stock market continued its upward trend driven by the artificial intelligence boom at the beginning of 2026, investors may be ignoring a major threat that could spoil the party: the resurgence of inflation triggered by the tech investment craze. This risk could not only force central banks to reverse monetary policy, but also directly threaten the core logic supporting the current high market valuations.

Although U.S. stocks hit new historical highs in 2025 led by the seven major tech giants and inflation data eased somewhat, market participants warn that with large-scale government stimulus combined with huge corporate capital expenditure in AI, global price pressures may make a comeback in 2026.

According to Reuters, several asset managers have pointed out that the current market broadly expects interest rates to be further lowered, but this optimistic sentiment may not have sufficiently factored in the risk of an inflation rebound.

Once inflation accelerates, central banks may be forced to end the rate cut cycle and even re-tighten monetary policy, cutting off the flow of cheap money into the AI market. For tech stocks that rely on lofty expectations and low financing costs, a tightening monetary environment will deal a direct blow—raising financing costs, compressing corporate profit margins, and depressing stock valuations.

Analysts from firms like Morgan Stanley and Aviva Investors point out that the AI frenzy itself is becoming an inflationary force. The demand for energy and advanced chips in data center construction is pushing costs higher, which may cause inflation rates to stay above the Fed’s 2% target for a prolonged period—a risk largely underestimated by market participants right now.

Tighter Monetary Policy May Become “the Needle that Pops the Bubble”

For the 2026 market outlook, some veteran investors believe the pivot in monetary policy will be the key variable. Trevor Greetham, head of multi-assets at Royal London Asset Management, said that a market bubble often needs a “needle” to pop it, and that needle will most likely be monetary tightening. He noted that although he still holds large tech stocks, he wouldn’t be surprised if global inflation surges by the end of 2026.

Greetham warns, tightening funds will dampen investors’ appetite for speculative tech assets, and increase the financing costs of AI projects, ultimately cutting tech groups’ profits and share prices.

Kevin Thozet, a member of the investment committee at Carmignac, expressed similar concerns. He thinks the risks of inflation remain severely underestimated as the economic growth cycle accelerates. Thozet points out that inflation could start triggering investor panic, and as the risk of rate hikes rises, the high P/E valuations given to big AI stocks will decline. As a result, he has begun increasing holdings in inflation-protected bonds.

Chip and Energy Costs Spiral Higher

Beyond the macro impact of monetary policy, the direct cost pressure caused by AI infrastructure building cannot be ignored. Analysts note that trillion-dollar races in data center construction among “hyperscale enterprises” like Microsoft, Meta, and Alphabet are a significant inflationary force. These projects are consuming huge amounts of energy and advanced chips, causing related prices to rise rather than fall.

Morgan Stanley strategist Andrew Sheets said, according to his forecasts, chip and electricity cost inflation will drive related expenditures up, not down. He expects, partly thanks to massive corporate investment in AI, that U.S. consumer price inflation (CPI) will stay above the Fed’s 2% target through the end of 2027.

Additionally, Deutsche Bank analysts estimate capital expenditure for AI data centers could reach $4 trillion by 2030. The rapid rollout of such projects may lead to supply bottlenecks for chips and electricity, causing investment costs to spiral upward.

George Chen, partner at consulting firm Asia Group and former Meta executive, points out that inflation in storage chip costs will push up prices for AI companies, reduce investor returns, and ultimately lead to less money flowing into the sector.

Corporate Profitability Already Shows Signs of Pressure

In fact, the market is already seeing some early signs of stress from rising costs and potential AI over-investment. According to Reuters, Oracle’s stock plunged last month after revealing a spending surge, and Broadcom’s share price also fell after warning high profit margins would be squeezed. PC maker HP Inc. expects that, due to soaring storage chip costs driven by data center demand, its prices and profits will face pressure in the second half of 2026.

Julius Bendikas, head of European economics and dynamic asset allocation at Mercer, said, “What keeps us up at night is that inflation risk has resurfaced.” Despite not betting on an equity market correction just yet, he is gradually exiting bond markets that could be hit by inflation shocks.

Fabio Bassi, head of cross-asset strategy at JP Morgan, added that aside from chip prices, the improved U.S. labor market, stimulus spending, and rate cuts already implemented will all support inflation staying above target. In its 2026 outlook, Aviva Investors also emphasized that central banks ending rate-cut cycles or even beginning to hike again will be the main risk the market faces.

Risk Warning and DisclaimerThe market involves risk; investors need to be cautious. This article does not constitute personal investment advice and does not take into account the individual investment objectives, financial situation, or needs of any specific user. Users should consider whether any opinions, viewpoints, or conclusions in this article are appropriate to their particular circumstances. Investing based on this article is at your own risk. ```