Apple's stock price skyrocketed by 13% this week, marking its most significant weekly surge in more than five years. This rally propelled the company's market value by over $400 billion, reaching a staggering $3.4 trillion, solidifying its position as the third most valuable company worldwide. CEO Tim Cook's visit to the White House, where he met with President Donald Trump, heralded a pivotal announcement: a $100 billion investment in American companies and components over the next four years. Apple intends to bolster its domestic chip purchases, a move that could potentially shield the company from import tariffs on semiconductors. This strategy was warmly received by the market as a proactive measure to mitigate the effects of tariff policies. Additionally, Apple's latest financial report revealed a 10% increase in revenue for the June quarter, accompanied by a 13% surge in iPhone sales.