截至7月30日，全球最大黄金ETF——SPDR Gold Trust的黄金持仓量为955.37吨，较前一交易日减少0.86吨

Group 1 - As of July 30, the SPDR Gold Trust, the world's largest gold ETF, has a gold holding of 955.37 tons, which is a decrease of 0.86 tons compared to the previous trading day [1]