► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />New rules requiring higher capital requirements for clearing houses hit shares in the London Stock Exchange on Friday. Lex's Julia Grindell and Nikki Tait discuss why this is short-term pain for the exchange for a longer-term gain. <br /><br />Related article: http://www.ft.com/cms/s/0/373c2b66-0940-11e2-a5a9-00144feabdc0.html<br /><br />For more commentary from the Lex team, visit http://www.ft.com/lex <br /><br />http://www.FT.com/
