Report: Moody's to cut outlooks of major U.K. banks

• Moody's will revise the outlook of "a number of big U.K. lenders" to negative from stable today due to fallout from last week's EU referendum, Sky News reports.
• The plan comes just hours after rival Standard & Poor's stripped the U.K. of its coveted triple-A rating and Fitch downgraded the sovereign.
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