新浪财经资讯AI速递：昨夜今晨财经热点一览 丨2026年2月28日

Group 1: Currency and Economic Policy - The offshore RMB appreciated over 600 basis points against the USD in three consecutive days after the Spring Festival, prompting the central bank to lower the foreign exchange risk reserve ratio for forward sales from 20% to 0% starting March 2, 2026, to stabilize exchange rate expectations and reduce corporate costs for forward purchases [10][10]. - The adjustment of the foreign exchange risk reserve ratio is aimed at guiding the RMB exchange rate to maintain basic stability at a reasonable and balanced level [10]. Group 2: Commodity Market Movements - International commodity markets experienced significant movements due to escalating tensions in the Middle East, with silver prices rising over 5% and gold prices also increasing on February 27 [11][11]. - The rise in commodity prices is attributed to the U.S. approving the evacuation of personnel from Israel and military buildup in the region, raising expectations of direct conflict between the U.S. and Iran [11]. Group 3: Stock Market Performance - The Dow Jones index fell by 1.59% to close at 48,710.54 points, with most bank stocks declining, including Citigroup down over 5% and Bank of America and Wells Fargo down over 4% [15][15]. - The Nasdaq index opened down 1.2%, with significant declines in technology stocks, including Microsoft and Nvidia, both dropping over 2% [17][17]. Group 4: Corporate Developments - Warner Bros. Discovery and Paramount Global reached a merger agreement valued at $110 billion, including approximately $29 billion in debt, marking one of the largest mergers in Hollywood in recent years [13][13]. - OpenAI announced a new investment of $110 billion, raising its valuation to $730 billion, with Amazon contributing $50 billion to the investment [17][17]. Group 5: Real Estate Transactions - Wanda Group sold the Shanghai Zhuangqiao Wanda Plaza for 2.048 billion yuan, marking the latest in a series of asset disposals, having sold over 80 Wanda Plazas since 2023 [18][18]. - The asset sales reflect ongoing liquidity pressures for Wanda, with asset monetization being a key strategy to alleviate debt and recover funds [18].