Quest Diagnostics jumps 5% as Q2 earnings beat, full-year guidance raisedUS Stock Market UpdateJul 23, 2026 at 11:50 AM奎斯特诊疗 (DGX.US) 盘中涨超 5%,现报 221.07 美元。公司公布第二季度业绩,营收同比增长10%,调整后每股收益增长19%,超出市场预期。受医师、医院及消费者渠道需求强劲推动,公司上调全年业绩指引,预计利润率将持续扩张。