DexCom Inc. stock outperforms competitors on strong trading day

DexCom Inc. (DXCM) shares rose 2.14% to $89.53 on Tuesday, outperforming the broader market which saw the S&P 500 Index fall 0.32% and the Dow Jones Industrial Average fall 0.34%. This marks the fourth consecutive day of gains for DexCom stock. The article notes the stock's performance on an otherwise grim trading session.