Is it true that Cross-IDS for market-wide self-match prevention is assigned by the exchange?

The assertion that Cross-IDs for market-wide self-match prevention are assigned by the exchange is accurate. In a trading environment, self-match prevention is an essential mechanism that helps to avoid situations where a trader's buy and sell orders might inadvertently match, which can lead to complications such as unintended trades or mismatched positions.

By having the exchange assign Cross-IDs, it ensures that there is a centralized and consistent approach to managing self-matching across the entire market. This uniformity is critical as it simplifies the process for traders and enhances the overall efficiency and integrity of trading operations. The exchange's role in this assignment helps maintain order and prevents issues that could arise from self-matching, which ultimately fosters a healthier trading environment for all participants.

Options suggesting that the assignment is false or conditional—based on specific trades or time frames—misunderstand the policy's foundation. The approach taken by the exchange applies broadly to all market participants to ensure a robust trading framework.