The $600 Billion AI Capex Growth Wave May Slow in 2026, Analysts Warn

Artificial intelligence spending is accelerating, with capital expenditures (capex) from major tech firms reaching $383 billion in 2025. Analysts expect capex to rise by over $100 billion in 2026, pushing the total to nearly $500 billion. However, concerns are emerging about the sustainability of this spending pace.

C3.ai Inc (NYSE: AI) is in talks to merge with Automation Anywhere, a privately held automation software company. The potential deal could see Automation Anywhere acquire C3.ai and take it public via a reverse merger. C3.ai's shares jumped nearly 15% following the news.

Automation Anywhere, valued at $6.8 billion in 2019, has been a leader in robotic process automation. The merger, if finalized, could bring it into the public market more quickly than a traditional IPO. However, analysts caution about potential dilution risks and integration challenges.

Microsoft and Meta are set to release earnings this week, with investors closely watching how AI investments are translating into financial performance. Microsoft recently launched the Maia 200, its second-generation AI chip, while Meta is expected to provide guidance on its 2026 spending.

Why Did This Happen?

The AI capex surge reflects a competitive arms race among tech giants. Bridgewater's co-CIOs have warned that companies are forced to keep investing heavily in AI to avoid falling behind, even when short-term returns remain uncertain. This dynamic is creating a self-reinforcing cycle of spending.

At the same time, concerns are growing about the long-term profitability of AI investments. Over half of the 4,454 CEOs surveyed by PwC reported no revenue or cost gains from AI yet. Microsoft CEO Satya Nadella has emphasized the need to avoid another bubble by ensuring benefits are more evenly distributed.

The AI sector has seen mixed performance. Nvidia and Microsoft have led the way with gains, while C3.ai and Palantir have lagged. C3.ai's shares rose sharply on merger news but remain down nearly 60% from their 52-week high.

Investor sentiment is also shaped by supply chain and infrastructure developments. ASML is expected to report earnings soon, and its outlook is seen as crucial for the AI chip industry. The Dutch company's cutting-edge lithography machines are key to producing advanced AI chips.

TSMC, a major chip manufacturer, is also expanding its capex for 2026 to support AI infrastructure. The company plans to invest between $52 billion and $56 billion in 2026, a significant increase from its 2025 budget.

What Are Analysts Watching Next?

The next major focus is on whether AI spending can grow by 30% in 2026 without rattling investor confidence. While the broader market supports AI as a long-term trend, there is a growing push for profitability. Companies are expected to face more scrutiny on how AI investments translate into earnings.

SK Hynix, a major supplier of AI memory chips, recently reported record quarterly profit due to strong demand. The company is also preparing for a significant capex increase to meet growing demand for high-bandwidth memory (HBM) in AI applications.

The coming months will test whether AI can deliver on its promise. With major tech firms and supply chain partners like ASML, TSMC, and SK Hynix driving the expansion, the focus is on balancing growth with financial sustainability.

Investors will also watch for signs of consolidation in the AI space. Companies like Palantir and C3.ai face increasing pressure to prove their value proposition amid fierce competition and shifting market dynamics.