S&P 500 Gains and Losses Today: Index Climbs as Nvidia Breaks Records

1. Nvidia reached a $4 trillion market cap milestone, hitting an all-time high. 2. Tech sector performance contributed to the S&P 500's 0.6% rise. 3. President Trump announced tariff rates affecting various trading partners. 4. Cryptocurrencies surged, influenced by a potentially favorable regulatory environment. 5. Interest rate cuts anticipated in 2025 may boost housing and tech stocks.