FINANCIAL ASSETS AND FINANCIAL LIABILITIES - Netting of Financial Liabilities (Details) - Amounts due to clearing organizations - HKD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Effects of offsetting on the balance sheet
Gross amounts	$ 15,624,766	$ 9,549,039
Gross amounts set off in the balance sheet	(14,873,802)	(9,045,643)
Net amounts presented in the balance sheet	750,964	503,396
Related amounts not offset
Net amount	$ 750,964	$ 503,396

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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