US stock futures up on optimism over manufacturing

NEW YORK -- U.S. stock futures are rising on optimism from improving U.S. manufacturing data and despite concerns about the economic outlook of both Greece and Spain.

Dow futures are up 47 points to 13,484. The broader S&P 500 futures are 8 points to 1,445. Nasdaq futures are up 13 points to 2,801.

The monthly manufacturing survey from the Institute for Supply Management on Monday pointed to an improvement. Its main index rose sharply to above 50, a reading that signals growth. The index had been below 50 from June through August.

Hopes that the U.S. is back in recovery mode has helped stocks start the new month on a relative high. The week's economic news out of the U.S. culminates Friday with the closely watched monthly jobs report.