BOSTON (AP) — Fidelity Investments is joining the rush to satisfy investors’ growing appetite for news about financial market turmoil.

The nation’s largest mutual fund company planned Thursday to announce a redesign of http://www.fidelity.com, with a deeper trove of information accessible from the home page. Most of it is news and commentary from outside media sources that appear alongside links to information on Fidelity’s products.

The revamp follows recent redesigns at other financial Web sites that are adding more financial news on home pages, and displaying it more prominently in response to growing demand. The number of U.S. households going online for financial news and investing information will grow from 55 million to 72 million by 2014, according to SRI Consulting Business Intelligence.

At Boston-based Fidelity, average daily Web site visits rose more than 50 percent as markets tanked in late September and early October, with more than a quarter million investors accessing the site’s news and market data during that period.

In revamping its site, Fidelity plans to prominently feature links to some 600 news stories daily. The links will be continuously updated from 19 outside media sources, including The Associated Press. The redesign also adds personal finance articles from outside publications, commentary from more than 20 personal finance columnists, tools such as calculators and quizzes, and expanded market data.