NEW YORK (MarketWatch) -- NYSE Euronext and Deutsche Boerse AG (FRA:DE:DB1) (OTC:DBOEY) said Thursday they're formally ending their merger deal after the tie-up was blocked by the European Commission. The move comes nearly a year after the two financial markets signed thier combination agreement on Feb. 15, 2011.

Feb. 2, 2012, 11:24 a.m. EST