GREENWOOD: The first thing you're looking for is overvaluation.

The S&P 500 Index jumped 16% in 2025, with AI winners Nvidia Corp., Alphabet Inc., Broadcom Inc. and Microsoft Corp.

Technology bubbles have often concealed major frauds. From the railway boom to the Madoff affair, are there warning signs at ...

The market has sung a different tune in the new year, with many AI stocks surging out of the gate. While some investors still ...

Before the great financial crisis, did you know what a mortgage-backed security was? A credit default swap? Had you ever heard of Lehman Brothers? Every economic bubble has its own vernacular. The ...

The bubble will burst in the second half of the year and take down the economy with it: Direct AI spending alone has accounted for 70% or so of GDP growth this year, and that doesn’t account for all ...

LONDON(AP) — Lingering doubts about the economic promise of artificial intelligence technology are starting to get the attention of financial institutions that raised warning flags this week about an ...

AI stocks have thrived in recent years, but some investors worry that growth will stall in 2026. Nobody can predict the ...

Everyone in tech agrees we’re in a bubble. They just can’t agree on what it looks like — or what happens when it pops. MIT Technology Review Explains: Let our writers untangle the complex, messy world ...

Markets are split into two camps as 2025 winds down: AI is a bubble or AI is not a bubble. John Belton of Gabelli Funds notes that the market is prone to two distinct types of bubbles. Despite ...

Discover what the South Sea Bubble reveals about today’s AI boom, investor psychology, and how timeless lessons from history can guide smarter decisions now.