New Delhi, Apr 6 (IANS): Credit Suisse has taken a hit of around $4.7 billion because of the default by a major US-based hedge fund on margin calls. "While our financial results are still subject to detailed finalisation and review, we would expect to report a pre-tax loss for 1Q 2021 of approximately (Swiss Franc) CHF 900 million. This includes a charge of CHF 4.4 bill....