U.S. stocks were set to open little changed Tuesday amid Greek vote on austerity measures.


Economy: The Conference Board's consumer confidence survey for June will be released at 14:00 GMT. Economists are looking for consumer confidence to remain at 60.8.
Companies: Nike's (NKE, Fortune 500) stock jumped more than 4% in premarket trading, a day after the athletic shoe maker posted better-than-expected profit and sales.
Shares of GSV Capital Corp. (GSVC) climbed 7% in premarket trading, after disclosing Monday that it acquired 225,000 Facebook shares at $29.28 per share. Shares of GSV had surged 42% on Monday.
Shares of Macy's (M, Fortune 500) jumped 4% before the bell. The retailer announced Monday that it plans to add international shipping to 91 countries.