By Tatyana Shumsky Of DOW JONES NEWSWIRES NEW YORK (Dow Jones)--Copper rallied for a second day after as investors continued to flock to commodities after a bullish recommendation from Goldman Sachs. The most actively traded contract, for July delivery, was recently up 7.90 cents, or 2%, at $4.0920 a pound on the Comex division of the New York Mercantile Exchange. May-delivery copper was up 7.75 cents, or 1.9%, at $4.0900 a pound. Goldman Sachs identified copper as "an attractive opportunity" at current prices, advising clients to purchase the metal in a research note released Tuesday. The bullish call helped lift prices 0.5%, and continues to draw investment interest to the red metal Wednesday morning. "The comments out of Goldman yesterday are giving people confidence in commodity investment again and copper is steadfastly holding on to that $4 mark," said Matt Zeman, head of trading at Kingsview Financial. Investors have been slow to re-enter the commodity market after being rattled by a sharp price correction at the start of May. Steep declines in silver futures quickly spread to other commodity markets, knocking gold off $1,500, crude oil below $100 and forcing copper below $4 a pound. A stronger dollar pushed the euro lower and kept copper's gains in check. Finland approved Portugal's bailout, but nervousness about Greece continued to dominate currency markets, driving traders towards the safe-haven of the dollar. The euro was recently at $1.4062, down from $1.4100 late Thursday in New York. Copper futures are denominated in dollars and the contracts seem more expensive to holders of foreign currencies when the greenback strengthens. -By Tatyana Shumsky, Dow Jones Newswires; 212-416-3095; tatyana.shumsky@dowjones.com

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