Time to buy in stocks, housing and oil? By: CNBC.com News January 08, 2015 at 19:40 PM EST Guests on CNBC's "Street Signs" Thursday gave their takes on whether now is a big buying opportunity for investors in stocks, housing and oil. Read More >> Related Stocks: Cisco Systems Concho Resources Inc Diamondback Energy Matador Resources Company Newfield Exploration Oracle Corp TJX Companies Target Corp Wal-Mart Stores, Inc. eBay iPath Dow Jones-Goldman Sachs Crude Oil Fund