美股存储概念股走高，西部数据涨4%

Group 1 - The core viewpoint of the article highlights the rise in stock prices of storage concept stocks in the US market, indicating positive market sentiment towards this sector [1] Group 2 - Western Digital saw an increase of 4% in its stock price [1] - SanDisk experienced a significant rise of over 7% [1] - Seagate Technology's stock rose nearly 2% [1]