The rally in the FANG block of tech shares and its megacap brethren just surpassed a dubious milestone.
An index of 10 tech growth shares pushed its advance to 23 percent so far this year, giving the group an annualized return since early 2016 of 67 percent. That frenzied pace tops the Nasdaq Composite Index’s 66 percent return in the final two years of the dot-com bubble.
