昨夜，大涨！原因找到了

Group 1 - Warren Buffett's investment actions have significantly influenced the Dow Jones Industrial Average, with UnitedHealth Group's stock rising by 12% following news of Buffett's investment [1][7][10] - The latest 13F report revealed that Berkshire Hathaway established a new position in UnitedHealth Group, acquiring over 5 million shares valued at approximately $1.57 billion [10] - The Dow Jones increased by 1.74% this week, reaching an intraday all-time high, while the S&P 500 and Nasdaq also saw gains of 0.94% and 0.81% respectively [5][4] Group 2 - Major technology stocks exhibited mixed performance, with Intel rising about 3%, while Tesla fell over 1% [11] - The Nasdaq Golden Dragon China Index rose by 0.74%, with notable gains from stocks like Xunlei and Bilibili [12] Group 3 - Precious metals and oil prices experienced declines, with gold dropping to $3,335.28 per ounce, a weekly decrease of 1.86%, and Brent crude oil falling to $66.14 per barrel, down 0.68% for the week [2][16]