Memory chip stocks are trading higher in the pre-market session, driven by renewed investor optimism in the artificial intelligence sector following the public IPO filing of AI firm Anthropic. This has highlighted the significant demand for memory and storage required for AI applications. Adding to the sector's positive momentum, SK Hynix shares surged on reports that the company is considering a substantial special dividend. A positive analyst note from Bank of America on Micron also contributed to the bullish sentiment.