亚洲股市涨跌互现，油价持稳，美国加大对伊朗施压

亚洲股市周二涨跌互现，油价持稳，美国财政部长斯科特·贝森特（Scott Bessent）宣布对伊朗实施新制裁，并警告与伊朗做生意的国家将面临报复 1。受美伊局势影响，布伦特原油维持在每桶90.51美元附近，美国基准原油报每桶85.10美元 1。

在亚洲市场方面，东京日经225指数上涨0.4%至65,811.19，澳大利亚S&P/ASX 200指数上涨0.6%至9,158.70 1。与此同时，韩国Kospi指数下跌0.4%至6,675.88，香港恒生指数下跌0.3%至25,453.19，上证综指下跌0.1%至3,878.38 1。

美国股市周一收盘涨跌不一，科技股领跌，其中英伟达下跌2.9%，美光科技下跌5.8%，博通下跌2.6% 1。整体来看，标普500指数下跌0.3%，纳斯达克综合指数下跌0.8%，道琼斯工业平均指数上涨0.3% 1。此外，10年期美国国债收益率降至4.71% 1。美联储新主席凯文·沃什（Kevin Warsh）将于周五在怀俄明州杰克逊霍尔年度经济研讨会上发表演讲 1。

Asian stock markets experienced mixed trading on Tuesday as oil prices remained steady following the announcement of new sanctions against Iran by US Treasury Secretary Scott Bessent, who also warned of retaliation against countries doing business with the Iranian government 1. In regional markets, Japan's Nikkei 225 rose 0.4% to 65,811.19, and Australia's S&P/ASX 200 gained 0.6% to 9,158.70 1. Conversely, South Korea's Kospi fell 0.4% to 6,675.88, while Hong Kong's Hang Seng Index dropped 0.3% to 25,453.19, and the Shanghai Composite edged down 0.1% to 3,878.38 1.

In the United States, stock indices closed mixed on Monday, with the S&P 500 declining 0.3% and the Dow Jones Industrial Average rising 0.3%, while the Nasdaq Composite fell 0.8% 1. Technology and AI chip stocks led the decline, with Nvidia dropping 2.9%, Micron Technology falling 5.8%, and Broadcom decreasing 2.6% 1. Meanwhile, the yield on the 10-year US Treasury note slipped slightly to 4.71% 1. Oil prices held steady amid the US-Iran situation, with Brent crude trading near $90.51 per barrel and the US benchmark crude at $85.10 per barrel 1. Additionally, new Federal Reserve Chairman Kevin Warsh is scheduled to deliver a speech at the annual Jackson Hole economic symposium in Wyoming on Friday 1.