Fidelity has inked an agreement with American Airlines in an effort to help its brokerage products take off in a fiercely competitive environment.

This month, the airline company and Boston behemoth announced a partnership through which brokerage customers will earn "miles" for opening accounts.  Of course, the more money investors deposit, the further they can go, with an initial deposit between $2,500 and $9,999 earning 5,000 miles, between $10,000 and $49,999 earning 15,000 miles, and deposits of $50,000 or more earning 25,000 miles.

"We see a great synergy between American's customers, who lead active lives, and our own customer base," said Claire Huang, executive vice president of marketing at Fidelity.

The program applies only to new brokerage customers, and continues a move toward rewarding clients by helping them with purchases they might already make.

Earlier this year, Fidelity arrived at an agreement with Amazon.com, whereby the Fidelity offers financial services through the online retailer's "financial services store" and occupies advertisements across the electronic retailer's site.

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