Amazon opened its logistics network to outside businesses, launching Amazon Supply Chain Services for freight, storage, fulfillment, and parcel shipping. UPS and FedEx shares fell sharply, with UPS closing down 10.47% Monday, as investors saw Amazon as a new competitor. By Tuesday morning, both stocks had rebounded about 1%. Early clients include Procter & Gamble, 3M, Lands’ End, and American Eagle Outfitters.