Wall Street jumps after Yellen speech
(Close): US markets closed higher on Monday after a speech by Federal Reserve chair Janet Yellen calmed fears that the central bank would raise interest rates this month.
She said there had been positive economic signs, but a weak May jobs report was "disappointing".
The Dow Jones climbed 113.2 points, or 0.67%, to 17,920.3.
The prospect of a rate rise in June diminished on Friday when US unemployment figures showed that just 38,000 jobs were added last month.
Shares in Boeing rose 3.6% after it was reported that Iranair was in talks with the plane maker to buy more than 100 aircraft.
Retail giant Walmart rose 0.25% after investment bank Jefferies upgraded its rating on the stock to "buy".
Bank shares also rose as the interest rates on bonds bounced back after falling on Friday.