Execution copy discretion of CSFB, be deemed to be a Reference Dealer. Reference Price is in relation to the valuation of any Security on any date: the last regular way trade on the Exchange for that Security as at Close of Business (without regard to any "after hours" trading) on the date of such valuation (except that the final Reference Price shall be fixed as of the Closing Date); or (ii) if Reference Dealers is specified as the Exchange for…