In the older literature, also called intervention purchase (support purchase)

The purchase of one’s own currency on the foreign exchange market by the central bank in order to prevent the exchange rate from falling. – Price maintenance of a security by the issuer or other entities. – See dividend fund, fiscal agent, price maintenance, market maintenance fee. – Cf. 2004 Annual Report of BaFin, p. 175 (permissibility in individual cases).

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