'A clear turn for the worse': A Wall Street strategist lays out compelling evidence that stocks are due for a meltdown before the year runs out

Investors should be on alert for another pullback in the stock market before Dec. 31 given the myriad of risks ahead, according to RBC Capital Markets.  
In addition, the stock market's valuation has recently taken "a clear turn for the worse" and is now well above its historical average. 
Click here for more BI Prime stories.You should brace for another pullback in the stock market before this year runs out, say equity strategists at RBC Capital Markets. 
The worst of it cou