$AAPL $MSFT $AMZN $GOOGL $FB together have added approx $470bn in market cap in July alone (we are not even mid-month yet!). $AMZN has added $210bn in market cap, which is more than the current market cap of some 95% of the S&amp;P500 via @themarketear https://t.co/Xk44KImn14