You can now rule out IAG at the moment as Willie Walsh has just stated no further acquisitions in Europe for now as there maybe better value elsewhere around the globe.
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No company is going to announce their intentions because in doing so they will be required to make a bid as it will impact the shareprice and stock exchanges don't like companies stating something and not doing it.
Statement from IAG is correct at exact time it was made, 5 minutes after that it was history and no longer applies.
IAG will make a bid IF it is in their interests to do so, I'm not convinced as of this minute it is, tomorrow well that is a different matter.