Q2 2025 Performance Strong revenue growth from acquisitions, enterprise accounts, and innovative clinical solutions Q2 2025 15.2% Total revenue $2.76 billion 16.9% Adjusted operating income %2 11.5% Adjusted diluted EPS2 $2.62 per share 1 1,3 Company overview Quest is a leader in diagnostic testing insights and information services. Read our Q2 earnings press release on our Investor Relations site. " Through continued execution of our strategy, we delivered a strong second quarter, with revenues growing 15. ...