Bermuda re/insurer Arch Capital Group Ltd is to carry out a three-for-one share split.The company announced that its shareholders had approved an amendment to the company’s Memorandum of Association to effect the share split.Holders of common shares as of the close of business last Friday (the record date) will receive two additional common shares for each common share owned. Shareholders’ accounts will be credited with the additional shares on or about today. Arch added that on or about tomorrow, the per share market price for the common shares will be proportionately reduced to one-third of the price it would have otherwise been.