Oil Slides After OPEC's Barkindo Warns Of "Horrifying" Fundamentals, Fears "Max'd Out" Storage In May https://t.co/A6UhmKuk4M $SPY $QQQ $DJIA $DIA #stockmarket #investing #finance #stocks #gold #silver $SLV $TWTR $GLD $AAPL $TSLA $AMZN $NFLX $AMD $INTC #economy $USO