Stock Exchange to Standardize Market Data Access, Ending Local Network Lines
On July 27th, several brokerages received and announced notifications from the stock exchange regarding a change in how market data is accessed. The exchange will standardize its data access method to utilize wide-area network (WAN) lines within its data centers. The existing local area network (LAN) trading lines are scheduled to be officially shut down on the evening of July 31, 2026. Brokerages are expected to cooperate with the implementation of this optimized trading data access model. Market insiders close to regulatory bodies have indicated that this change is a routine operational adjustment. Both the Shanghai and Shenzhen stock exchanges will implement this change, though the timing may vary slightly between them. This adjustment is not specifically targeting any particular type of trading, including quantitative trading. Market analysts suggest the modification is not aimed at any specific strategy or institutional category and does not differentiate between various trading methods. The primary goal of this adjustment is to eliminate potential technical advantages arising from differences in physical deployment. This ensures that investors of all sizes and types have equitable access conditions at the infrastructure level.
This infrastructure upgrade by the stock exchange aims to level the playing field for all market participants by standardizing data access. By migrating from localized network lines to a unified wide-area network, the exchange seeks to mitigate any inherent advantages that might arise from proximity or specific network configurations. This move promotes greater fairness and reduces the potential for technologically sophisticated firms to gain an edge solely through infrastructure differences. Over the next decade, as algorithmic and high-frequency trading continue to evolve, such standardization efforts will be crucial for maintaining market integrity and ensuring that access to real-time information is as equitable as possible across diverse investor bases.
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