Traders eye Ukraine as Crimea referendum looms By: CNBC.com News March 13, 2014 at 18:43 PM EDT Tensions around Ukraine will dominate markets Friday as diplomatic efforts are expected to generate buzz ahead of Sunday's referendum in Crimea. Read More >> Related Stocks: Barclays Plc ADR Buckle Inc Intercept Pharmaceuticals Sentinelone Inc Cl A Twitter, Inc.