Woofun AI data shows that the US-listed memory storage sector experienced significant upward movement on July 21st. Micron Technology (MU) rose 10.54%, while SanDisk (SNDK) increased by 11.77%. Western Digital (WDC) led the group with a 12.23% gain, and Seagate Technology (STX) climbed 10.58%.

Additionally, the Roundhill Memory ETF (DRAM) appreciated 9.91%, and SK Hynix ADR advanced 10.03%.