Firstpost | U.S. Stock Futures Fluctuate Amid Deadlock in Greek Debt Talks San Francisco Chronicle 21 (Bloomberg) -- U.S. stock-index futures fluctuated between gains and losses amid a deadlock in Greek debt talks and as investors awaited reports on consumer confidence and initial jobless claims. Standard & Poor's 500 Index futures expiring in ... US STOCKS-Wall St flat after Greek delay in thin holiday trade |