ASML earnings boosted semiconductor stocks in premarket trading. ASML rose 9%; KLA rose 5%; Lam Research rose 4%; Micron and Super Micro Computer rose 3%; Broadcom, Marvell Technology, AMD, STMicroelectronics, and Arm rose 2%; Intel and TSMC rose 1%.

ASML booked more than twice as many orders as analysts expected in the fourth quarter, as the artificial intelligence boom drove demand for its chipmaking machines.

The Dutch company reported order bookings of €7.09 billion ($7.4 billion) in the fourth quarter, it said in a statement on Wednesday. That compares with an average estimate of €3.53 billion by analysts surveyed by Bloomberg.

“AI is the clear driver,” Chief Executive Officer Christophe Fouquet said. “We really believe that AI is creating a shift in the market and we have seen customers benefiting from it very strongly.”