On October 13, US-listed memory chip stocks declined broadly in pre-market trading, with SK hynix (SKHY) falling 5.2%.

Micron Technology (MU), SanDisk, Western Digital (WDC), and Seagate Technology PLC (STX) each dropped more than 3%, while Intel slipped 1% and Advanced Micro Devices (AMD) declined 1.81%.

The seven major US tech giants traded mixed, with Google, Microsoft, and Apple edging higher, while Amazon, Meta, Tesla, and Nvidia posted slight losses.

On October 13, South Korea's KOSPI index closed down 349 points, or 5.46%, at 6,035.35, marking its lowest close since July 30. The index has now fallen for a fifth consecutive trading session, weighed down by a sharp selloff in technology shares.

SK hynix (SKHY) tumbled 10.09% on the day, while Samsung Electronics closed down 7.38%.