ZURICH—Credit Suisse Group will provide an update on its group strategy review on Thursday following a presentation of the Swiss bank’s third-quarter results, it said on Monday. Chairman Antonio Horta-Osorio, who joined the bank in April from Britain’s Lloyds, has promised a new strategy for Switzerland’s second-largest lender and a review of the bank’s risk management and culture in the wake of crises that prompted a raft of executives to leave. The review comes earlier than expected. The bank, whose share price has fallen 29 percent since the start of March, had said in the past it would be unveiled before the end of the year. The investor event will be held in London and will be accessible via webcast and telephone conference. Credit Suisse last month agreed to pay around $475 million to U.S. and British authorities to resolve bribery and fraud charges relating to the $2 billion Mozambican …