Apple's 4-day slide puts Microsoft back on top as most valuable public company

Core Insights - Microsoft has regained its position as the world's most valuable public company with a market capitalization of $2.64 trillion, surpassing Apple's $2.59 trillion following a 23% decline in Apple's stock over four trading sessions [1]. Group 1: Market Impact - The overall market is experiencing significant downturns due to President Trump's tariff plan, with the Nasdaq index down 13% over the past four trading days [3]. - Apple's heavy reliance on China has made it particularly vulnerable to the impacts of the tariff plan, resulting in a more severe decline compared to other tech giants [2]. Group 2: Company Performance - Despite issuing disappointing revenue guidance in January, Microsoft is viewed as more insulated from tariff uncertainties compared to other software companies, according to Jefferies analysts [4]. - Both Apple and Microsoft, along with Nvidia, were previously valued at over $3 trillion before the recent market selloff [3].