Nomura sues Monte Paschi

Nomura Holdings filed a claim in London against Banca Monte Paschi di Siena the same day Italy's third-biggest bank lodged a suit against it in an Italian court in a dispute about derivatives. Nomura filed a claim on March 1, the same day Monte Paschi lodged separate suits in Florence seeking damages over two derivative contracts dubbed Alexandria and Santorini, arranged respectively by Nomura and Deutsche Bank.