U.S. equity futures moved higher again Wednesday as markets regained their end-of-year optimism while eyeing another round of labor market data and key public remarks from Federal Reserve Chairman Jerome Powell later in the session.

Wall Street is heading for more gains before the open on Wednesday on the last earnings reports, and ahead of Friday's U.S. jobs report. Futures for the S&P 500 rose 0.3% before the bell, while futures for the Dow Jones Industrial Average climbed 0.

Asian shares mostly rose Tuesday, after technology stocks pulled Wall Street to another record finish. The S&P 500 rose 0.2% Monday from the previous session's all-time high to post a record for the 54th time this year.