Stocks open lower as Ukraine overtakes upbeat data By: CNBC.com News August 28, 2014 at 09:30 AM EDT Stocks opened lower on Thursday, pulling the S&P 500 below 2,000, as concerns about Ukraine overtook upbeat reports on the economy and labor. Read More >> Related Stocks: Abercrombie & Fitch Company Dollar General JPMorgan Chase & Co Sentinelone Inc Cl A