(Reuters) - Mutual fund provider Fidelity Investments is considering dropping American Express Co (>> American Express Company) and Bank of America Corp (>> Bank of America Corp) to find new partners and better terms, Bloomberg reported, citing people familiar with the matter.

Visa Inc (>> Visa Inc) and MasterCard Inc (>> Mastercard Inc) are in talks with Fidelity to replace AmEx, Bloomberg cited the sources as saying.

Warehouse club retailer Costco Wholesale Corp (>> Costco Wholesale Corporation) said on Feb. 12 that it would end a 16-year-old agreement of accepting AmEx credit cards at U.S. stores from next year, which threatened a near 8 percent of worldwide annual spending on AmEx cards.

A day after which, Bloomberg reported citing a published report that AmEx was also ending its co-branded card deal with JetBlue Airways Corp (>> JetBlue Airways Corporation).

The discussions, which may replace BofA with another issuer as well, are fluid and may fall apart, Bloomberg wrote.

BofA and Visa declined to comment, while Fidelity Investments and AmEx were not available for comments outside regular business hours.

Up to Wednesday's close of $16.06, BofA shares had fallen 10 percent this year.

AmEx shares have fallen nearly 19 percent to $75.63 this year, through its Wednesday close on the New York Stock Exchange.

(Reporting by Anet Josline Pinto in Bengaluru; Editing by Lisa Shumaker)