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Morning Money Memo:

Twitter is growing in global popularity, but not enough for skittish investors. The social media and mobile messaging company's shares plunged more than 11 percent despite a jump in third-quarter revenue that more than doubled from last year. At least three Wall Street analysts downgraded the stock the day after Twitter posted a $175 million loss. Adjusted earnings matched expectations at 1 cent a share. To appeal to more people, Twitter has tried to make it easier for people to sign up, and its user base grew 23 percent. And Twitter executives say its reach is much more than its 284 million users and that many people see the website without logging on.

Apple CEO Tim Cook is calling the company's new mobile payment system a success and says he's got an eye on China. Cook says Apple Pay is now more widely used than any competing payment system. But it's not accepted by a number of large retail chains. CVS and Rite Aid, part of group of companies linked to a rival payment service, disabled Apple Pay in their stores. Cook says he plans to talk with Jack Ma, executive chairman of the Chinese e-commerce giant Alibaba, about a possible partnership. Ma is visiting Hollywood film studios this week. The Alibaba founder says he wants to bring U.S. movies to China, along with other products. He told a tech industry conference he is "looking for partners."

Stock market futures rose this morning after a mixed close for Wall Street Monday. Investors may be cautious before Wednesday's statement from the Federal Reserve about a possible timeline for raising interest rates. The Fed is winding down its $4 trillion bond-buying program, known as quantitative easing

The Middle East will be getting the first Macy's department store outside the United States, and just for good measure, its second Bloomingdale's, too. A Gulf Property developer and Dubai-based retail conglomerate Al Tayer Group say they plan to open both stores in a new shopping center being built in the United Arab Emirates' capital of Abu Dhabi. The nearby Emirati city of Dubai already hosts the first overseas branch of Bloomingdale's in the vast Dubai Mall, one of the world's biggest shopping centers, set at the base of the world's tallest tower.

Dunkin' Donuts plans to begin offering a croissant-doughnut hybrid next week. But the company says please don't call it a "Cronut." That name was trademarked more than a year ago by a New York City bakery. Dunkin' Donuts' "Croissant Donut" will be available nationally for a limited time starting next Monday.

Richard Davies Business Correspondent ABC News Radio abcnews.com Twitter: daviesnow