S&P 500 Suffers Biggest Weekly Drop in 4 Years

The S&P 500 suffered its biggest weekly tumble in four years. It is fitting that such a significant drop would take out a major head-and-shoulders pattern (8 months in the making after 6 years of climb) and the floor of an exceptionally consistent bull phase. How much more room is there to sink? From a technical, fundamental and exposure perspective - plenty.