Gold futures are trading in a cautious mode today as traders remain uncertainty that how long the central bank will maintain its $85 billion a month in bond purchases.

Investors are closely watching for any comments by the Fed about the future of its program of purchasing $85 billion a month in bonds, which is intended to stoke economic growth. The Fed will conclude its two-day meeting Wednesday and Fed Chairman Ben Bernanke will hold a news conference.

On the data front today, Japan’s exports surged in May, as the yen traded at its weakest levels of the year, with the result leading to a smaller-than-expected trade deficit. Japanese exports rose 10.1% from a year earlier, the Finance Ministry reported Wednesday.