Brexit clash over share trading would hit markets - UK watchdog <!-- no image --> <div>Overlapping British and European Union share trading rules would damaged markets "to no good end" and can be avoided, Britain's top markets watchdog said on Monday.<div class="feedflare"> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=AXQzhasC_zI:bT9O8Bz2muk:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?d=yIl2AUoC8zA" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=AXQzhasC_zI:bT9O8Bz2muk:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=AXQzhasC_zI:bT9O8Bz2muk:V_sGLiPBpWU" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=AXQzhasC_zI:bT9O8Bz2muk:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=AXQzhasC_zI:bT9O8Bz2muk:F7zBnMyn0Lo" border="0"></a> </div><img src="http://feeds.feedburner.com/~r/reuters/UKBankingFinancial/~4/AXQzhasC_zI" height="1" width="1" alt=""></div> Posted by Reuters