Hong Kong Stock Exchange: The limit for price fluctuations in designated stock index futures trading during the after-hours market trading session (T+1) will be expanded to 6%.
On June 9th, the Hong Kong Stock Exchange released the "Optimization Measures for Trading After Market Close (T+1) Period".
On June 9th, HKEX released the "Optimization Measures for Post-Close Trading (T+1) Session". The announcement stated that HKEX will further optimize the price limits for designated stock index futures contracts in the post-close trading (T+1) session, expanding from the current 5% to 6%. The contracts include Hang Seng Index Futures, Hang Seng Index Dividend Accumulation Index Futures, Hang Seng H-Share Index ETF Futures, Hang Seng H-Share Index ETF Dividend Accumulation Index Futures, Hang Seng Technology Index Futures, Mini Hang Seng Index Futures, Mini Hang Seng H-Share Index ETF Futures, excluding Hang Seng Biotech Index Futures.
The announcement also mentioned that to ensure that exchange participants are prepared for the shortened market closure time between T and T+1 sessions, as well as the relaxation of price limits for these contracts, HKEX will hold a mock trading session on June 20, 2026 (Saturday) to test the operational readiness of exchange participants. It is strongly recommended that all exchange participants eligible to trade in the T+1 session participate in this mock trading session.
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