First off, please don't take anything I say seriously or as financial advice. As always, this is on opinion basis. That being said, let me get into a few key points. Dexcom very recently faced a 52 week high, had positive quarterly earnings, is on a bullish run, outperformed other stocks in the same sector, continues stable growth and has a strong buy rating. It does have some long potential as well, given it is a 2800+ employee company. However, given its long bullish run, I think there is a small chance it could be tipping off. That being said, for a quick profit target, I suggest a $375 short and a reinvestment in some higher growth (but maybe higher risk) stocks.