Quest Diagnostics Incorporated (NYSE:DGX) stock surged Thursday after the diagnostic testing company reported second-quarter results that topped Wall Street expectations and raised its full-year 2026 guidance.

Earnings And Revenue Top Estimates Adjusted earnings rose to $3.12 per share, beating the analyst consensus estimate of $2.83.

Revenue increased 10.2% year over year to $3.043 billion, ahead of the $2.973 billion consensus estimate.

Consolidated organic revenue grew 10%.

Adjusted operating income climbed 7.8% to $502 million.