** Shares of U.S. asset managers rise after Federal Reserve Chair Jerome Powell's comments signal possible interest-rate cut in September

** Traders now put a nearly 90% chance of a rate cut in September, versus about 75% before Powell's remarks

** Lower interest rates often boost risk-on sentiments, boosting the value of assets under management as markets rally

** Asset managers' fees is directly tied to the value of their portfolios

** KKR KKR.N up 3.6%, Invesco IVZ.N up 3.1%, and Blackstone BX.N up 3.8%

** Franklin Resources BEN.N up 2.2%, BlackRock BLK.N up 1.3%, and Apollo APO.N up 2.1%

(Reporting by Ateev Bhandari in Bengaluru)

((Ateev.Bhandari@thomsonreuters.com;))