Latin American currencies were mostly weaker on Friday on revived worries about Greece's debt problems, which weakened the euro against the safe-haven US dollar. Emerging market debt spreads narrowed 3 basis points to 257 basis points over Treasuries, according to J.P. Morgan's Emerging Markets Bond Index Plus.
Copper came under pressure on Friday as the dollar rose and investors worried about demand from China, the world's largest consumer of industrial metals. Copper for May delivery on the New York Mercantile Exchange's COMEX division reversed down 2.30 cents to close at $3.3725 per lb, moving from $3.3640 to $3.4110.
US crude oil futures settled lower as the dollar's strength against the euro and an interest rate hike in India - fuelling concerns about more tightening - combined to pressure oil and other commodities. In US markets, Friday marks the second day of a convergence known as quadruple witching, when four types of options and futures contracts expire, possibly triggering volatility and higher volumes.