 Since bottoming in late 2000, HUI went on to be the top-performing US stock sector of the decade, rising by about 1600%.Adjustments are made quarterly after the close of trading on the third Friday of March, June, September, and December so that each component stock represents its assigned weight in the index.The HUI-gold ratio is an expression which compares the relative quantities of the NYSE Gold BUGS Index and the price of gold.