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Mysterious Bond Billionaire Offers Rare Look at Finances

  • Distressed-debt billioniare once considered the priesthood
  • Known as a ‘ghost investor’ and the ‘friendly vulture’
David Martinez, right, shakes hands with former President of Argentina Nestor Kirchner

David Martinez, right, shakes hands with former President of Argentina Nestor Kirchner

Victor Bugge/Presidencia Argentina/CeDoc Perfil
Updated on

As Wall Street billionaires go, David Martinez might not be the richest, but he is one of the most mysterious.

In Mexico, where he was born and raised, and in Italy, where his Fintech Advisory Inc. earlier this year bought a stake in the world’s oldest bank, he’s known as a “ghost investor.” He’s very active but frustratingly opaque. His hedge fund, with an office on Manhattan’s Park Avenue, doesn’t have a website.