The NYSE Arca Gold BUGS (Basket of Unhedged Gold Stocks) Index (also known as the HUI Index) is a modified equal dollar weighted index of companies involved in gold mining. HUI is simply the symbol on the Amex and has no special or direct translation. Here are the 16 companies which are represented in that index and the weight each exerts on the value of this index:
http://en.wikipedia.org/wiki/HUI_Gold_In...
http://finance.yahoo.com/q?s=^HUI
Also: what do the letters HUI stand for?