SK hynix Inc.

(NASDAQ:SKHY) stock rose more than 6% in Tuesday's premarket session as investors continued to embrace the memory-chip maker's U.S. listing and artificial intelligence narrative.

Nasdaq futures gained 0.59%, while S&P 500 futures slipped 0.10%.

The gains extended the stock's strong Nasdaq debut after the company completed a $26.5 billion U.S. listing.

Market commentary suggested the ADRs priced at roughly a 3% premium to the Seoul-listed shares, a level viewed as within expectations given strong institutional demand.