Investors may peel their attention away from the Greek debt crisis on Tuesday morning with the release of reports on U.S. consumer confidence and home prices. Expectations are low: Economists expect that the S&P/Case-Shiller home price index for 20 cities will fall 4 per cent dip over last year and mark its 10th consecutive monthly decline.

At the same time, the Conference Board's consumer confidence index for June is expected to tread water, coming in at 61 after last month's reading of 60.8. The index has been rocky of late, after rising to a post-recovery high of 72 in February, before employment reports began to point to a far slower-than-expected improvement in unemployment numbers.

In earnings news, Canada's Jean Coutu Group (PJC) Inc. will report its fiscal first quarter results before markets open. There are no earnings expected for companies within the S&P 500.