NEW YORK (TheStreet) -- Welcome to Don Dion's "Daily ETF Winners and Losers." Be sure to stop by each day to find out which ETFs are gaining or losing.
iShares FTSE NAREIT Mortgage Mortgage Plus Capped Index Fund ( REM) -1.6% Annaly Capital Management ( NLY) and American Capital Agency ( AGNC) took heavy hits this morning, pushing REM to notable losses. REM is heavily reliant on the day-to-day action from these two holdings. Together, they account for over 33% of the fund's index. REM is currently trading at levels last seen during the closing months of 2010. Market Vectors Gold Miners ETF ( GDX) -2.0% Although gold prices are seeing slight gains as investors seek out protective asset classes, companies responsible for unearthing the yellow metal are taking a shot across the bow. The industry behemoths underlying GDX are leading the retreat. Meanwhile, the small cap-focused Market Vectors Junior Gold Miners ETF ( GDXJ) is seeing a less dramatic decline. With Friday's losses, GDX has once again retreated below its 50-day moving average. All prices as of 2:15 PM EST Written by Don Dion in Williamstown, Mass.