Delta, Continental and Alaska Air fall on downgrades, US Airways and LAN upgraded

North and South American carriers’ stocks plunged on Thursday (04-Feb-2010), following the release of weak economic data in the US, including an unexpected increase in US jobless claims in Jan-2010, and an analyst downgrade of some carriers. Consequently, the AMEX Airline Index (-5.6%) was down, as was the Dow (-2.6%). Oil prices (-5.0%) also plummeted, to USD73.14.