The Trump tax cuts will give a boost to the stock market. Stock buybacks by big companies are up this year. However, Quantative Tightening by the Fed together with interest rate rises could well pop the bubble. U.S. household is at historic highs, even higher than the previous high in 2008, so the maxed out public will not be able to stomach rises in the cost of mortgages, auto-loans, student loans, credit card loans etc.