On Friday, gold opened below the $1,550 resistance line which tripped a massive number of stop losses. That was just the beginning of the carnage.

A point or range in a chart that caps an increase in the price of a stock or index over a period of time. An area of resistance, resistance line or resistance level indicates that the stock or index is finding it difficult to break through it, and may head lower shortly. The more times that the stock or index tries unsuccessfully to break through the resistance line, the stronger that area of price resistance becomes.