美元走低日元急升，现货黄金突破5000美元，美国天然气期货价格上涨16%

Group 1 - The Nasdaq futures fell over 1% and the S&P 500 index futures dropped by 0.75% [1] - U.S. natural gas futures prices increased by 16% due to the impact of a winter storm [1] - Spot gold surpassed the $5000 per ounce mark, while spot silver briefly exceeded $106 per ounce, gaining nearly 3% during the day [1] Group 2 - The U.S. dollar index declined by 0.52%, with the euro rising by 0.52% against the dollar to 1.1888 [1] - The dollar to yen exchange rate fell by 0.89% to 154.32, currently reported at 154.77, as the market remains alert to potential intervention by the Japanese government in the currency market [1]