NEW YORK (Reuters) - U.S. stock futures added to gains on Tuesday after data showed U.S. home prices rose more than expected in May.
S&P 500 futures rose 6.9 points and were above fair value, a formula that evaluates pricing by taking into account interest rates, dividends and time to expiration on the contract.
(Reporting by Caroline Valetkevitch; editing by Jeffrey Benkoe)
