Wall Street’s sell-off is easing up following a scary stretch where worries about the economy and tariffs sent it close to 9% below its all-time high. The S&P 500 slipped 0.2% in early trading Tuesday. The Dow Jones Industrial Average was down 54 points, also 0.2%, and the Nasdaq composite essentially flat. Several Big Tech stocks held steadier after getting walloped in recent months. Elon Musk’s Tesla edged up 1.5%. President Donald Trump said he would buy a Tesla in a show of support for “Elon’s ‘baby.' " A day earlier, the electric-vehicle company’s stock tumbled 15.4%,