Tech stocks took a hit after the last two U.S. credit downgrades. Why this time could be different. - MarketWatch
1. Moody's downgraded U.S. credit rating from Aaa to Aa1, citing increased debt. 2. Market reaction to downgrade expected to be muted compared to previous downgrades. 3. Rising bond yields present risks to tech stocks, offering higher relative returns. 4. AI momentum among big tech companies could drive future growth despite economic pressures. 5. U.S.-China tariff reductions provide comfort to investors amid uncertainty.