Hong Kong-listed memory stock concepts surged at the open: Southern 2x Long SK Hynix (07709.HK) rose over 55%, having spiked as much as 270% within the previous five minutes, with trading volume exceeding HK$3.5 billion; Southern 2x Long Samsung Electronics (07747.HK) rose over 40%, with trading volume exceeding HK$550 million; GigaDevice (03986.HK) rose nearly 26%, and Memblaze Technology (06809.HK) rose over 17%. (Jinshi)
Hong Kong storage-related stocks surge at open, Southern Double-Long Hynix rises over 55%.
TechFlowShare
Summary
On July 31, 2026, Hong Kong storage-related stocks surged at the open, with open interest rising sharply. Southern Double-Long Hynix (07709.HK) jumped over 55%, spiking 270% within five minutes, with trading volume exceeding HKD 3.5 billion. Southern Double-Long Samsung Electronics (07747.HK) climbed more than 40%, with trading volume above HKD 550 million. GigaDevice (03986.HK) rose nearly 26%, and澜起科技 (06809.HK) gained over 17%.
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