'Shark Tank' watch: Kevin O'Leary warns about commercial real estate, Barbara Corcoran expects house prices to climb, and Daymond John touts Apple and Amazon

• Three "Shark Tank" investors weighed in on stocks, real estate, and cryptocurrencies.
• Daymond John loves Apple and Amazon; Kevin O'Leary likes index funds but worries about commercial space.
• Barbara Corcoran thinks house prices will rise, and says she lost $50,000 betting on bitcoin.

A trio of "Shark Tank" investors shared their views on stocks, real estate, and cryptocurrencies in a Fox Business interview on Tuesday.