Private payroll data may show whether thaw is on By: CNBC.com News April 01, 2014 at 18:40 PM EDT Stocks are sniffing out a spring thaw, and private payroll data Wednesday should give some further clues as to whether the bounce back rally can continue. Read More >> Related Stocks: G-X Nasdaq China Tech ETF GX Social Media ETF Nasdaq Biotechnology Ishares ETF Thomson Reuters Corporation Twitter, Inc.