Trading in the U.S. index futures suggests that Wall Street may look to shake off its recent lackluster showing and open Wednesday’s session higher. With the Dow having moved into the red for the year, bargain hunting may offer some support. Asia had a mixed outing, with the firming up of the yen pressuring stocks in Japan. China and Hong Kong also had a down day, while most other markets advanced. Later in the day, the Chinese central bank lowered its growth and inflation forecasts, raising hopes of additional stimulus.