Following a bunch of worse-than-expected data from the world's largest economy during the week, Friday's report showed a surprising rise in manufacturing output, showing country's factories were a major source of strength for the economy at the start of this year's last quarter. A monthly survey from the Institute for Supply Management showed a gauge of manufacturing activity soared to 56.4 in October, hitting the highest since April 2011, up from 56.2 a month earlier and outpacing analysts' estimates, who called for a 55.3 reading. The index moved further away from the 50 threshold that separates growth from contraction. This is a welcoming sign for the economy, as it reflects little impact of the 16-day long government shutdown on the manufacturers.