Five Things You Need to Know to Start Your Day

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Pound plunges, stocks rise and HSBC has a big profit miss. Here are some of the things people in markets are talking about today.

On Sunday, Mayor of London and Conservative-voter darling Boris Johnson announced that he would be campaigning for Britain to leave the European Union in June's referendum. The pound slid the most since 2010 in trading this morning, dropping at least 1.2 percent against all its major peers. At 11:38 a.m. in London the currency was down 2.0 percent to $1.4120.