AMS AG AMS, -0.10% cut its forecast late Wednesday, adding to a number of Apple Inc. AAPL, +2.06% suppliers cutting outlooks because of lower-than-expected sales. AMS said it sees fourth-quarter revenue of $480 million to $520 million, down from its forecast of $570 million to $610 million made in late October, because of "recent demand changes from a major consumer customer." Analysts surveyed by FactSet had estimated revenue of $617.6 million. Over the week, suppliers Lumentum Holdings Inc. LITE, +1.48% and Qorvo Inc. QRVO, +1.45% warned of lower-than-expected sales.