Eaton Vance Corp. and Invesco Ltd. launched on Tuesday the first-ever mutual fund and exchange-traded fund focusing on Build America Bonds, judging investors and lawmakers will keep showing interest in these new, taxable municipal securities.

Wall Street analysts have been taking an increasingly optimistic view toward asset managers as the market upswing raises company stock prices and suggests better times ahead.

Financial stocks trade lower as an up-and-down week for the volatile sector continues in the wake of second-quarter earnings reports.

Among the stocks expected to see active trading on Wednesday are those of Eaton Vance, Gymboree, Limited and PetSmart.

NEW YORK (MarketWatch) -- The recent improvement in the markets has been good news for asset managers buffeted by the downturn, but in the view of analysts it's still too soon to be optimistic.