The relentless rally in artificial intelligence hardware is encountering significant headwinds, with optical interconnect and memory chip stocks leading a broad sell-off in the sector.

A brutal week for chip stocks — the same names that fueled this year's blistering market rally — has left investors from Seoul to Silicon Valley asking whether the AI boom became over-leveraged and got ahead of itself.

The decline marks a sharp reversal in sentiment, with the Dow Jones Industrial Average falling below 53,000 points in US trading.

The decline marks a sharp reversal in sentiment, with the Dow Jones Industrial Average falling below 53,000 points in US trading.

In Europe, the AEX index retreated from earlier gains as a broad-based selloff in chip funds weighed on equities.

The move suggests that the market is beginning to price in the risks associated with highly leveraged positions in the AI trade, rather than simply rotating capital.

MarketWatch reports that the most exposed names in the sector are facing the steepest declines, highlighting the fragility of the current valuation structure.