Hwang has described himself as a "little child looking for what can I do today, where can I invest, to please our God."
The Swiss bank said the loss could be "highly significant and material" to its first-quarter earnings.
A margin call occurs when a broker demands repayment of some of the money it lent you to buy investments. A margin call usually happens when the securities you bought have dropped drastically in value. If you fail to pay the margin call, the broker has the right to begin […]
London-based hedge fund manager Russell...