Credit Suisse
UBS agreed to buy its biggest rival Credit Suisse for just over $3 billion Sunday.
  • UBS agreed to take over rival bank Credit Suisse for just over $3 billion Sunday.
  • The Swiss government forced through the deal in a bid to quell fears of a global banking crisis.
  • From UBS itself to Credit Suisse's AT1 bondholders, here are the main winners and losers from the biggest story in markets right now.

UBS agreed to buy longtime rival Credit Suisse on Sunday in a historic deal that'll merge two of Europe's biggest banks.