Tomorrow 8/20, NUGT will split 1 for 10 and DUST will split 2 for 1.
Furthermore, the index composition will be changed from the open tomorrow:
[url]http://www.indexuniverse.com/sections/news/19566-nyse-retools-gold-miners-index.html[/url]
Finally, here are some surprising facts about the relationships between GDX and GLD.
[url]http://seekingalpha.com/article/1643342-the-market-vectors-gold-miner-etf-is-a-lousy-way-to-bet-on-gold[/url]