Jerry Del Missier’s Copper Street Capital is reportedly opening to external capital and hopes to bring assets under management to more than $500 million.  The London-based hedge fund, which concentrates on event-driven opportunities in the financial services sector, launched two years ago with $100 million of internal capital following Del Missier’s stint as co-CEO of Barclays investment bank. He left Barclays in 2012 shortly after the departure of Bob Diamond.  Copper Street is up 9.4% so far this year through April 30, according to a Reuters article citing a conversation with Del Missier. The fund seeks absolute and relative value...