Vestas Wind Systems Shares Slip as Company Flags Margins at Low End of Guidance SP 500 Flat as Consumer Discretionary Strength Offsets Energy and Tech Weakness Amazon Expands AI Shopping Technology to Retailers Kate Spate First Customer US Retail Sales Stall in December Signaling Potential Economic Slowdown Oil Prices Decline as USIran Peace Deal Hopes Rise Strait of Hormuz Reopening Eyed SpaceX IPO Speculation Fuels Surge in SpaceRelated Stocks and ETFs Manufacturing Energy and Carbon Footprints 2018 MECS Department of Energy Report Published