Vienna-The customs chaos that US President Donald Trump triggered also shows consequences in the market for mergers and takeovers (Mergers and Aquisitions; M&A). Because “when dealmaking is the superpower of the corporate world, then tariffs are their cryptonite”-this is how the consulting company BCG summarizes the current situation in the report “Zölle changing the dealmaking landscape”. Every new customs message, any countermeasure and every temporary compromise in the customs dispute trigger new uncertainties and sometimes turn business plans upside down.