Vesting/payout goals based on a specific stock price or amount of appreciation (e.g. total shareholder return), as set forth by the ASC 718 accounting rules for stock compensation. No true-up or reversal in the expense taken at grant is allowed for failing to meet a market condition, as the expense is fixed on the grant-date fair value. Compare this to the accounting treatment of performance conditions. When companies grant performance shares, payouts are triggered by either market conditions or performance conditions under the accounting rules.