Stock futures are wavering between gains and losses ahead of separate reports on economic growth and orders for long-lasting factory goods, according to AP. The government issues the third of three estimates of how much the economy grew during the first three months of the year in a report due at 8:30 a.m. Eastern (1230 GMT). At the same hour, traders will learn how many durable goods businesses ordered last month. Analysts expect the economy grew faster than the 1.8 percent annual rate reported in the government's earlier estimate. Orders of durable goods such as machines and electronics likely increased. Dow Jones Industrial Average futures are down 8 points, or 0.1 percent, at 11,968. Standard & Poor's 500 futures are up 0.7, or 0.1 percent, at 1,278. Nasdaq 100 futures are up 7 points, or 0.3 percent, at 2,244.