In more than four years, the biggest single-day gain has been noted by Telekom Austria AG (TKA). It is reportedly after the proposal of conquest of Royal KPN NV. (KPN) put forth by the Mexican billionaire's company.

As per the findings, the shares increased by 46 cents i. e. 8.7%, touching 5.73 euros in Vienna today. Trading was found six folds the 90-day average volume. Since, the stock had realized the most increase since December 2008.

TKA is one of the two network operators in Europe, part-owned by America Movil SAB (AMXL) of Carlos Slim. It is being said that the offer by Slim was a positive one. Since, the same highlighted the takeover issue to some extent and showed that America Movil was committed to the European market.

Probably, the offer of America Movil has been initiated by the planned disposal of E-Plus, German unit of KPN.

An amount of 7.2 billion euros is being offered by America Movil for 70% in KPN, not owned by it as yet.

"Slim's offer is absolutely positive because it sheds some light on the takeover issue and shows that America Movil is committed to the European market", said Raiffeisen Centrobank AG's Vienna-based analyst, Bernd Maurer.