.s . real estate investment trust ( 201creit 201d ) mutual fund and addition of an infrastructure debt team to further increase and diversify our offerings within global infrastructure investing . currency and commodities . aum in currency and commodities strategies totaled $ 41.4 billion at year-end 2012 , flat from year-end 2011 , reflecting net outflows of $ 1.5 billion , primarily from active currency and currency overlays , and $ 0.8 billion of market and foreign exchange gains