Amazon soared 15% while Apple erased $360B in a day · Markets, July 31 stocks ai amazon [NVRktBH9cnu]
Amazon and Apple set equal and opposite records in the same session. Amazon rose about 15.3% for its biggest one-day market value gain ever after AWS grew about 37% year over year, its fastest in eighteen quarters, while Apple fell about 7.5% and erased roughly 360 billion dollars of value on an AI component shortage warning. The read is that AI cloud spending has become real revenue rather than pilot budgets, and the market is now sorting AI winners from AI losers on that single test. The S&P 500 still added about 0.7%, but bonds sold off anyway: a hot Employment Cost Index, with compensation up about 0.9%, pushed the 10-year Treasury yield to about 4.75%, its highest since January 2025, and the 30-year to a 19-year high. Overseas the move was violent, with South Korea's Kospi surging about 17.9% for its best day on record as SK Hynix hit its 30% limit-up ceiling and Samsung rose about 27%, a rebound after a brutal July for Korean memory names. Oil stayed near 88 dollars with both benchmarks up over 20% for July on US-Iran escalation, keeping the inflation picture complicated. The Nasdaq still closed July down about 3.2%. The read: July sorted the AI trade, cloud wins and devices lose. Key numbers: Amazon about plus 15.3%, its largest one-day market value gain on record; AWS growth about 37% year over year, fastest in eighteen quarters; Apple about minus 7.5% and roughly 360 billion dollars erased; S&P 500 about plus 0.7%; Employment Cost Index compensation about plus 0.9%; 10-year Treasury yield about 4.75% and the 30-year at a 19-year high; Kospi about plus 17.9%, its best day on record, with SK Hynix at its 30% limit-up and Samsung about plus 27%; Brent near 88 dollars and up over 20% for July; Nasdaq about minus 3.2% for the month. Sources: company earnings releases, the Bureau of Labor Statistics Employment Cost Index, US Treasury data, Bloomberg, CNBC, Reuters and Korean market press; index and single-name moves verified against market data. Not investment advice. #stocks #ai #amazon #apple #markets #investing #nasdaq #rates #semiconductors #kospi #Shorts