Alphabet lost $477 billion in market value for the week, its worst week ever and the second-biggest weekly wipeout for a US-listed stock by Yahoo Finance's calculations, with $475 billion of that lost in a single session after its third-quarter results. Yahoo Finance put the October loss at about $766 billion at Friday's low, the second-biggest monthly loss ever for a US-listed company, behind SpaceX's roughly $822 billion drop in July. SpaceX, Intel and Nvidia each lost more than $100 billion that week, Intel fell as much as 30% after a weak outlook, and Amazon shed about $70 billion. Eli Lilly, Tesla and SK Hynix added about $370 billion combined. UBS argued against leaving markets to protect a portfolio from drawdowns, and the article notes that Micron makes memory chips, including high-bandwidth memory used in AI servers.
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