The Walt Disney Co. and Twitter Inc. said Monday they have reached agreement to create live content with advertising across the Disney portfolio on Twitter. As part of the deal, Twitter and ESPN will unveil live shows that are in development at their NewFront presentations later Monday and on Wednesday. Disney shares were up 1.5%, while Twitter is up 5%. The S&P 500 has down 0.5%, while the Dow Jones Industrial Average was down 0.3%.