Stocks open mixed after ADP report, S&P 500 touches fresh high By: CNBC.com News April 02, 2014 at 09:30 AM EDT Stocks opened narrowly mixed Wednesday, following the ADP private-sector job report. The S&P 500 touched another fresh high. Read More >> Related Stocks: Amazon.com CarMax General Motors Global Payments Inc Google, Inc. Monsanto Co Nokia Corp ADR Sentinelone Inc Cl A Twitter, Inc.