Memory-related stocks opened significantly higher during the morning session. At the time of writing, the Samsung Electronics Double Long ETF (07747) rose 20.04% to HK$124.60. The SK Hynix Double Long ETF (07709) increased 18.70% to HK$71.22. Montage Technology (06809) advanced 13.07% to HK$311.40. GigaDevice (03986) climbed 9.44% to HK$510.00.