Investors and traders often look for new research ideas that can generate higher income or more profits. 24/7 Wall St. reviews many fresh research calls each morning to find great ideas from value stocks to growth stocks to dividend stocks. We have broken out the positive analyst calls, and these are some of this Wednesday’s top analyst upgrades, initiations and positive analyst research calls seen from Wall Street.

Barrick Gold Corp. (NYSE: ABX) was raised to Buy from Hold by TD.

Best Buy Co. Inc. (NYSE: BBY) was raised to Buy from Neutral at B. Riley; Stifel Nicolaus reiterated its Buy rating but raised the price target to $40 from $30 in the call.

Dick’s Sporting Goods Inc. (NYSE: DKS) was maintained as Buy with a $58 price target at Sterne Agee, but the firm did lower earnings estimates, with the firm noting that shares slid too far down after lowered guidance. BofA/Merrill Lynch also reiterated its Buy rating and $58 price target. Canaccord Genuity maintained its Buy rating but lowered its target to $56 from $58 in the call.

Herbalife Ltd. (NYSE: HLF) was raised to Buy from Hold with an $80 price target, along with higher earnings estimates for 2013 and 2014, at Argus.

Questcor Pharmaceuticals Inc. (NASDAQ: QCOR) was raised to Buy from Neutral with an $80 price target (prior $58 target), based on a longer growth period for Acthar sales, at BofA/Merrill Lynch.

Royal Caribbean Cruises Ltd. (NYSE: RCL) was raised to Overweight from Equal Weight at Morgan Stanley.

Sanchez Energy Corp. (NYSE: SN) was initiated with a Buy rating and $31 price target at Canaccord Genuity.

Trina Solar Ltd. (NYSE: TSL) was raised to Outperform with a $10 price target at Cowen & Co. after earnings yesterday. Note that there were two other analyst upgrades yesterday as well after the report.

Trulia Inc. (NYSE: TRLA) was resumed with an Overweight rating and $51 price target at J.P. Morgan.

Veolia Environnement S.A. (NYSE: VE) was raised to Overweight from Equal Weight at Morgan Stanley.