Investors resumed their December rally today, looking past higher oil prices and focusing instead on building up their portfolios before year’s end.

Wall Street posted a healthy advance today as consumer confidence surged to a 22-month high and quelled investor concerns about the economy a day before the Federal Reserve’s decision on interest rates.

Wall Street was unable to shake its malaise over interest rates today, closing mixed despite a rally in technology stocks and a series of upbeat earnings reports from companies, including 3M and Eli Lilly. The Nasdaq composite index broke a four-day losing streak.

Wall Street retreated today as investors, worried that fourth-quarter earnings might not meet heightened expectations, decided to cash in some of their recent profits.