Yahoo Finance·2026-02-16 09:38Group 1 - The world's most valuable technology stocks have experienced significant declines in market value this year, raising concerns about the return on heavy AI investments [1] - Microsoft shares have dropped approximately 17% year-to-date, resulting in a market value loss of about $613 billion, bringing its valuation to around $2.98 trillion [2] - Amazon's stock has decreased by about 13.85% this year, erasing roughly $343 billion in market value, leaving it valued at approximately $2.13 trillion [2] Group 2 - Capital spending for Amazon is expected to increase by more than 50% this year [3] - Other major companies like Nvidia, Apple, and Alphabet have also seen declines in market value, totaling $89.67 billion, $256.44 billion, and $87.96 billion, respectively [3] - The shift in market psychology indicates a move from long-term AI ambitions to a demand for near-term earnings visibility [4] Group 3 - Companies such as TSMC, Samsung Electronics, and Walmart have gained market value, adding $293.89 billion, $272.88 billion, and $179.17 billion, respectively [4] - The current valuations for TSMC, Samsung Electronics, and Walmart stand at $1.58 trillion, $817 billion, and $1.07 trillion [4]