ReutersCentrist Emmanuel Macron in a celebratory mood on SundayU.S. stocks were set to rip higher on Monday, as perceived haven assets gold and the yen fell, after a first-round win for centrist Emmanuel Macron averted fears of a euroskeptic-only final runoff in the French presidential election.Investors were also waiting to hear more about a “massive” U.S. tax package that President Donald Trump said is coming on Wednesday.Dow Jones Industrial Average futures YMM7, +0.87% shot up 175 points, or 0.9%, to 20,678, while S&P 500 futures ESM7, +1.02% gained 23.85 points, or 1%, to 2,371.25. Nasdaq-100 futures NQM7, +1.01% surged 54 points, or 1%, to 5,495.75.via