Do you fear that stocks are in bubble? By: CNBC.com News April 01, 2014 at 18:16 PM EDT In his conversations with viewers at book signing events, Jim Cramer has noticed that many individual investors share a common fear. Read More >> Related Stocks: Amazon.com Caterpillar Celgene Corp Gilead Sciences International Business Machines Johnson & Johnson Nabors Industries Netflix Tesla, Inc. Tyson Foods