Opening https://portal.sina.com.hk/finance/sina/2024/03/28/792040/etf%E8%B3%87%E9%87%91%E6%B5%81%E5%90%91%EF%BC%9A3%E6%9C%8827%E6%97%A5-%E6%98%93%E6%96%B9%E9%81%94%E6%BB%AC%E6%B7%B1300etf%E7%8D%B2%E6%B7%A8%E7%94%B3%E8%B3%BC4-30%E5%84%84%E5%85%83-%E6%98%93%E6%96%B9/