Memory chip stocks are trading higher, driven by renewed investor optimism surrounding demand for artificial intelligence applications and strong semiconductor industry data. Recent figures showing record-high South Korean chip exports for the first 20 days of September have bolstered sentiment for the sector. This rally occurs within the context of an ongoing memory supply squeeze, where production capacity has been shifted to high-bandwidth memory (HBM) for AI, leading to tighter supply and rising prices for conventional DRAM and NAND chips.