Apple's stock rallied on Monday, pushing its market capitalization to $3.97 trillion and placing it on the verge of the historic $4 trillion mark. This late surge of 1.8% has positioned Apple to potentially join Nvidia and Microsoft as the third company to reach this valuation milestone within the current year, moving it ahead of Microsoft in market value for the moment. The strong stock performance comes as investors eagerly await the company's quarterly earnings report, which is scheduled for Thursday. This upward trend aligns with broader optimism around major tech stocks, although some analysts express skepticism about the sustainability of Apple's high valuation relative to its future growth prospects. The upcoming earnings announcement will be a key indicator of the company's financial health.