NYSE Euronext chief executive Duncan Niederauer would walk away with $34.3m in payouts if he lost his job in a hostile takeover of the company, according to regulatory filings published yesterday.

Niederauer is slated to become chief executive of the yet-to-be-named combination of NYSE Euronext and Frankfurt-based Deutsche Börse announced last month, but speculation continues to swirl around a potential counterbid for the Big Board parent.