['DATE | Monday', 'LOC | Europe', 'LOC | Spanish', 'LOC | Swiss', 'ORDINAL | third', 'ORG | Bolsas_y_Mercados_Espanoles', 'ORG | pan-European_exchange_Euronext', 'ORG | stock_exchange_operator_SIX', 'TICKER | BME']
Swiss stock exchange operator SIX said Monday it planned to bid for Bolsas y Mercados Espanoles (BME) to create Europe's third biggest operator, just as pan-European exchange Euronext signalled its own interest in the Spanish exchange.