Global stock market capitalization has reached $166 trillion, a level equivalent to 137% of the world's gross domestic product. The figure, which is near a record high, was driven by $27 trillion in gains tied to artificial intelligence.
How AI reshaped the market
Investors poured capital into companies developing or deploying AI tools, pushing valuations higher across major indexes. The $27 trillion in AI-related gains represents roughly 16% of the total market cap. While the exact breakdown by sector isn't specified, the surge reflects a broad bet that AI will transform industries from software to manufacturing.
What the 137% ratio means
Stock market capitalization as a share of global GDP now stands at 137%. That's near the all-time peak, meaning equity values are stretched relative to the underlying economy. The previous record was set during the dot-com bubble, though the current run-up is driven by a different set of technologies. The ratio is a common metric used by analysts to gauge whether markets are overvalued.
What happens next
The $166 trillion figure is a snapshot, not a forecast. Markets could hold these levels, climb further, or correct. The next major test will come when central banks release their next round of interest-rate decisions, which could either sustain or cool the AI rally. No official comment from regulators or exchanges has been issued yet.
