US stock futures mixed, keeping stocks on track for biggest weekly loss since April

U.S. stock futures were mixed as investors assessed corporate news. Stocks are still headed for their biggest weekly loss since April.

KEEPING SCORE: Dow Jones industrial average futures fell two points, or less than 0.1 percent, to 16,840 as of 9:08 a.m. Eastern time. Standard & Poor's 500 index futures rose 0.5 point, or less than 0.1 percent, to 1,958, while Nasdaq 100 futures gained seven points, or 0.2 percent, to 3,881.

WHERE THERE'S SMOKE: Tobacco company Lorillard rose $3.11, or 4.9 percent, to $66.20, in pre-market trading after it confirmed that it was in talks about being acquired by rival Reynolds American.

JITTERY WEEK: The S&P 500 index is poised for its biggest weekly loss since April after closing out the previous week at a record high. Stocks retreated from all-time highs as investors worried the rally may have overreached. Worries about the soundness of a Portuguese bank also spooked U.S. investors.

BONDS AND TREASURIES: In bond trading, prices rose. The yield on the 10-year Treasury note, which falls when prices climb, dropped to 2.51 percent from 2.54 percent late Thursday. The price of oil fell 76 cents, or 0.8 percent, to $102.17.