Loading ...“The ETF in question is the VanEck Junior Gold Miners ETF (GDXJ), which tracks the MVIS Global Junior Gold Miners Index. Since early 2016, assets in the fund ballooned from a little more than $1 billion to $5.4 billion currently. Some of that was due to rising share prices — GDXJ nearly doubled from $19.80 at the start of 2016 to recently as high as $36.71, an 85 percent gain, thanks to the rebound in gold.”
http://www.cnbc.com/2017/04/12/how-an-etf-gets-too-big-for-its-index.html