and a record. >> look into your crystal ball. is this sustainable? i assume this is a no, how long will this go? >> if i had that crystal ball, look, i asked one of the biggest investors in the world. i said, you got stocks up so much this year, more than 20% for the dow, 30% for the nasdaq. s&p up big time. can it go on forever? here's what mohammed told me. >> at some point, you need to get off this wave. because this wave cannot last forever. no one can tell you whether it's within the next few months or years. at these levels of valuations, we think it's about trying to take money off the table and be more cautious. >> there are plenty of analysts who disagree with him, who say the valuation of the market is not overvalued. 16 times the s&p, right in line with history. you still have the fed and an economy improving.