Sharp drop for Dow after Greece's B-

Following the announcement of S&P lowering the long-term sovereign credit rating for Greece to B-, markets posted an immediate negative reaction.

More specifically, Dow Jones dropped by 0.31% at 17.829 units, while S&P 500 noted a -2.21% decrease at 2.058 units.

At the same time the Euro fell by 1.4% against the dollar.