DGX ▲ +0.3% - Quest Diagnostics Incorporated $DGX - Nine in 10 Voters Express Concern That Medicare Lab Payment Cuts Will Harm Patient Access to Diagnostic Lab Testing, Finds National Survey from Quest Diagnostics Quest Diagnostics rose 0.3% after releasing survey results showing that nine in 10 voters are concerned Medicare lab payment cuts could harm patient access to diagnostic testing. The modest gain suggests modest market reaction to the company's messaging around potential regulatory headwinds to its lab testing business. 16-SEP-2026 08:03 AM ET