西部数据：美股早盘涨4.4%，两家券商上调其目标价

Group 1 - The core viewpoint of the article highlights a significant increase in the stock price of Western Digital Corporation (NASDAQ: WDC) following target price upgrades from two brokerage firms [1] - Morgan Stanley analyst Erik Woodring raised the target price for Western Digital from $99 to $171, indicating a bullish outlook [1] - Rosenblatt analyst Kevin Cassidy increased the target price from $90 to $125, further reflecting positive sentiment towards the company's stock [1]