Based on the data provided by Credit Suisse, it is believed that the despite a potential drop of S&P 500 to 1200 in case of Greece's exit from the euro area, the withdrawal may at the same time introduce the needed plan of action that would boost the market by at least 20%. Analysts indicate that in the event if the euro-zone breaks up, it is anticipated that the S&P 500 tumbles to 950 vs. the estimated fair value of 1440. However, the drawback is that in order for the ECB to arrive at the necessary measures, the crisis has to in fact build up even more.