Twitter shares are down 23% in the opening minutes.
The big news out of Europe this morning is that the ECB held on its interest rate decision. Bank governor Mario Draghi has been giving a news conference that just ended a short while ago. Some of the early news coverage:
News from Xcel
The Monticello Nuclear Plant restarted today and began providing electricity commercially shortly after 5 a.m. It will take several days for it to reach full power.