SAN DIEGO (AP) _ DexCom Inc. (DXCM) on Tuesday reported second-quarter net income of $46.3 million, after reporting a loss in the same period a year earlier.

On a per-share basis, the San Diego-based company said it had net income of 48 cents. Earnings, adjusted for non-recurring costs and to extinguish debt, came to 79 cents per share.

The results topped Wall Street expectations. The average estimate of 11 analysts surveyed by Zacks Investment Research was for earnings of 31 cents per share.

The medical device company posted revenue of $451.8 million in the period, also exceeding Street forecasts. Ten analysts surveyed by Zacks expected $406.6 million.

DexCom expects full-year revenue of $1.85 billion.

DexCom shares have risen 91% since the beginning of the year. In the final minutes of trading on Tuesday, shares hit $417.79, more than doubling in the last 12 months.

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This story was generated by Automated Insights (http://automatedinsights.com/ap) using data from Zacks Investment Research. Access a Zacks stock report on DXCM at https://www.zacks.com/ap/DXCM

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