How does Position Keeping differ from a trading system (e.g., QUIK) and from a back-office system?

Position Keeping is a system that tracks the current positions (volumes and asset values) of a trader or organization in real-time. It focuses on the current state of the portfolio, taking into account all transactions and changes.

A trading system (for example, QUIK) is designed for executing trading operations: submitting orders, modifying them, canceling, as well as receiving market data and quotes. It ensures interaction with the exchange and order management.

A back-office system is responsible for accounting and processing transactions after execution, calculating commissions, reconciling data, reporting, and compliance with regulations.

Thus:

• Position Keeping — monitoring and accounting of current positions in real-time.
• Trading system — execution of trades and market interaction.
• Back-office — post-trade processing and accounting.