GRMN ▼ -0.3% - Garmin Ltd. $GRMN - See all essential data on a sleek, high-resolution color display with the intuitive GMI 40 from Garmin Garmin shares fell 0.3% today, though the decline appeared unrelated to company news—the headline referenced the GMI 40, a marine instrument display that Garmin offers as part of its product lineup. 01-SEP-2026 07:02 AM ET