GM — beats Q3 but sinks ~6% premarket on narrowed guidance

General Motors posted adjusted Q3 EPS of $3.70, above the $3.61-$3.63 consensus, on revenue of $50.02B (up 2.9%, also a beat). But the stock fell ~5.8% premarket to ~$77.94 after GM narrowed its full-year adjusted EPS range to $12.75-$13.75, with the midpoint ($13.25) below the $13.41 consensus, and flagged ~$2B in commodity inflation. It also authorized a new $20B multiyear buyback and raised auto free-cash-flow guidance.