MILAN (Reuters) - Shares in Italy's Cobra failed to start trading on Monday after Vodafone Global Enterprise (>> Vodafone Group plc) said it would offer 1.49 euros a share to buy a majority stake in the Italian auto security system group.

At 0710 GMT (8.10 a.m. BST) shares in Cobra were indicated at 1.4750 euros with a theoretical rise of 49 percent.

Cobra's majority shareholder Intek Group (>> Intek Group SpA) said it had agreed to tender its 51.4 percent stake in Cobra for 74.3 million euros.

Shares in Intek were indicated at 0.46 euros with a theoretical increase of 11 percent.

(Reporting by Francesca Landini, editing by Danilo Masoni)