Kolanovic Sees Record S&amp;P In First Half Of 2021, Billionaire Paul Singer Sees 50% Crash https://t.co/5Vr6BrGs9D $SPY $QQQ $DJIA $DIA #stockmarket #investing #finance #stocks #gold #silver $SLV $TWTR $GLD $AAPL $TSLA $AMZN $NFLX $AMD $INTC #economy