UPDATE 1-Goldman downgrades Janus Capital, Invesco

May 12 (Reuters) - Goldman Sachs downgraded Janus Capital Group (JNS.N) to "sell" from "neutral" and Invesco Ltd (IVZ.N) to "neutral" from "buy," but maintained its "neutral" stance on the U.S. asset management sector.

The brokerage said its top buy ideas in the sector were Och-Ziff Capital Management Group LLC (OZM.N), BlackRock Inc (BLK.N), Waddell & Reed (WDR.N) and Affiliated Managers Group Inc (AMG.N).

"Our top sell are Federated Investors Inc (FII.N), Gamco Investors Inc (GBL.N), Cohen & Steers (CNS.N) and Janus Capital Group," it said.

Goldman upgraded T. Rowe Price Group Inc (TROW.O) to "neutral" from "sell" and raised price targets on various companies in the sector by an average 15 percent.

For ratings and price target changes, please double-click [ID:nWNAB8070] (Reporting by Santosh Nadgir in Bangalore; Editing by Vinu Pilakkott)