Wall Street wobbled through a listless session and closed mixed tonight as investors awaited the results of this week’s Federal Reserve meeting. Modest gains in the Dow Jones industrial average were enough for the index to set new trading and closing records.

Stocks recouped earlier losses to end modestly higher today as investors set aside nervousness over an uneasy start to the second-quarter earnings season, marked by weak results from Alcoa Inc. and a sales warning at Lucent Technologies Inc.

A late-day selloff left stocks mixed today as investors put aside their enthusiasm over acquisitions and evidence of a moderating economy and cashed in profits from an early advance.