U.S. stock index futures remained flat Tuesday as investors continued to worry over the lack of progress on the looming "fiscal cliff," but news that international lenders agreed to a Greece deal helped limit losses.
European shares were higher after Greece's international creditors secured a deal to reduce the troubled nation's debt by 40 billion euros ($51.9 billion) and changed the debt target for the country to 124 percent of gross domestic product (GDP) by 2020, from 120 percent previously.
Jean-Claude Juncker, the head of the Eurogroup of finance ministers, said Greece would receive a tranche of 34.4 billion euros of aid on December 13, for which it has been waiting since June.
However investors in the U.S. will remain focused on politicians' efforts to resolve the $600 billion "fiscal cliff" of automatic tax hikes and spending cuts due to hit the U.S. economy at the end of the year. Negotiations are expected to resume this week as policymakers return to Washington from the Thanksgiving holiday.
On the economic front, durable goods were unchanged in October, according to the Commerce Department. Economists polled by Reuters expected a decline of 0.6 percent, compared with a gain of 9.8 percent in September.
Home prices rose for the sixth-consecutive month in September, according to the S&P/Case-Shiller home price index. The composite index gained 0.4 percent on a seasonally adjusted basis, in line with economists' forecasts.