Once a trade is executed on an NZX market, NZC becomes the central counterparty to both the buy and sell side of the trade through the process of novation. This structure makes the settlement system more efficient by allowing clearing Participants to net the entirety of their buy and sell trades across each day, regardless of the various counterparties involved. It also improves the integrity of the settlement system because as a central counterparty clearer NZC guarantees delivery of cash and securities, even if the underlying counterparty were to fail to deliver. The following illustration demonstrates the process of the novation and netting of two on-market trades.
Participants that hold securities within the Securities Depository may choose to lend these to Clearing Participants, allowing them to earn additional income for the beneficial owners. The Clearing House acts as the central counterparty to these transactions also. The roles of the Clearing House and the Securities Depository are outlined below.
NZX Clearing operates the BaNCS Market Infrastructure platform (“BaNCS") provided by Tata Consultancy Services. BaNCS interfaces with several NZX systems and Participant connectivity is available through 15022 messaging over TCP/IP or the SWIFT network or via a web-based user interface.
The system also operates a direct connection to NZClear via the SWIFT network to ensure Participants can seamlessly transfer securities between the NZX Clearing Depository and the NZClear system operated by RBNZ.
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