oversold, page-25

I suppose this says it all;

"S&P Indices will remove Integra Mining Limited from the S&P/ASX 200 after the close of trading on December 24, 2012. Integra Mining Limited will be replaced by Sirtex Medical Limited (ASX: SRX) in the S&P/ASX 200 after the close of trading on December 24, 2012."

The timing is the same date as Van Ecks exit deadline. So it seems likely they are simply selling IGR from the ETF because its no longer going to be part of the S&P/ASX 200 and I'm guessing it needs to be in order to be in the ETF.