March 23 (Reuters) - Apple Inc shares could rise by 20 percent over the next year, fueled by sales of a new version of its iPhone smartphone that is expected to have a bigger screen, according to an article in the March 24 edition of Barron's.

The iPhone 6, expected in late summer or fall, is certain to have a bigger screen than earlier versions, which could give iPhone users a major reason to upgrade or win back people who switched to other devices, according to the article.

The article notes that Apple shares currently trade at a deep discount to the market.

(Reporting by Lewis Krauskopf; Editing by Sophie Hares)