"No one is line dancing over the fact that the market is at 2,700. No one feels good about it. The market likes to climb a wall of worry, and the stonemason has been hard at work. So I think we continue to grind higher," said Jason Trennert, chief investment strategist at Strategas Research Partners.
"Interest rates are gravity. When they are zero, share prices can go to infinity. When they are high, as they were during the early 1980s, the gravitational pull can be very strong," said Oracle of Omaha, Warren Buffett.