Stock market today: Dow, S&P 500, Nasdaq jump to post weekly gains as Supreme Court strikes down Trump tariffs

Group 1 - The Supreme Court ruled that President Trump's tariffs imposed under emergency powers were unlawful, leading to a rise in US stocks, with the S&P 500 up nearly 0.7%, Dow Jones up roughly 0.5%, and Nasdaq up nearly 0.9% [1][2] - Following the ruling, President Trump announced a new "10% global tariff" to replace the struck-down duties [2] - US GDP growth for the fourth quarter was reported at 1.4%, which was below expectations, while the core personal expenditures index showed a higher-than-expected increase in December [3] Group 2 - Concerns are rising in the private credit sector after Blue Owl halted withdrawals, raising fears of potential financial crisis indicators related to the sector's exposure to software stocks affected by AI [4]