Key Points Garmin upped earnings guidance, but not enough for some investors. Sales jumped 12%, but that was lower than the 20% increase reported in Q2. Garmin stock had been up more than 20% year to date before today's drop. 10 stocks we like better than Garmin › Garmin (NYSE: GRMN) reported strong third-quarter earnings today. That might have investors wondering why the stock is crashing. The Global Positioning System (GPS) technology company said sales rose by double digits and raised its profi ...