But on "Power Lunch" Tuesday, two analysts said they saw no traces of a stock bubble and even said that the market is undervalued at the moment.
"The idea that these stocks are overvalued, I'm not really finding that now when we are doing the research," said Robert Luna, SureVest Wealth Management CEO.
Luna said that in 2000, the big names like Microsoft, Cisco and Intel were trading at 40 to 50 times next year's earnings. Today, these companies are trading about 13 to 14 times next year's earnings.
"So it's a much different proposition to invest in these companies today than it was back in 2000," he added.