On July 31, DexCom rose 7.28% overnight, trading at $79.97 per share. The rally was driven by the company's Q2 earnings report, which delivered results well above Wall Street expectations alongside an upward revision to full-year revenue guidance.

Specifically, DexCom reported Q2 adjusted earnings of $0.70 per diluted share, significantly beating the analyst consensus estimate of $0.61 and representing a 45.83% year-over-year increase from $0.48. Revenue came in at $1.31 billion, surpassing the expected $1.29 billion and marking approximately 13% growth from $1.16 billion in the prior-year period. The company raised its full-year revenue guidance to a range of $5.18 billion to $5.25 billion, lifting the prior lower bound of $5.16 billion.

The strong performance was fueled by robust demand for continuous glucose monitoring systems, as diabetes care awareness continues to rise and consumer preference for non-invasive monitoring technology grows. RBC Capital Markets previously noted that U.S. CGM penetration remains only around 30% of covered lives, leaving substantial room for expansion.

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