A post relays a Reuters report that China's CSRC is curbing HFT firms' access to exchange data centers, weakening the low-latency edge of firms like Citadel Securities, Jane Street and Jump Trading.
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https://www.reuters.com/world/china/china-curbs-flash-boys-access-exchange-data-sources-say-2026-01-19/?utm\_source=chatgpt.com
Chinese regulators (CSRC) have ordered brokers to remove client-dedicated servers from exchange data centers, significantly weakening the ultra-low latency edge that global HFT firms depend on (e.g., Citadel Securities, Jane Street, Jump Trading). This impacts both domestic and foreign participants and could reshape trading volumes and strategies in China’s markets. 
• This move goes beyond typical “speed bump”-style regulation seen in the U.S. and Europe by physically relocating servers and imposing fixed minimal latency limits. 
• The intention is to curtail speculative behavior and emphasize longer-term investors over microsecond-driven trading.
Global context: Across other markets, HFT activity and influence remain controversial, with discussions on latency advantages, algorithmic strategies (e.g., exploiting time zone gaps), and potential regulatory tweaks continuing.