Mine and yours are shorthand financial terms mainly used by floor traders and brokers to signify a desire to buy and sell securities. For example, if interbank dealer desire to purchase specific security or currency, they would say or type “mine” to a broker or counterparty. In contrast, if a trader wishes to sell, they would say “yours” meaning security or currency is yours.
In a messy and fast-moving market, mine and yours are easily and quickly understandable, which enable accurate and fast transactions. In the hectic market, the crowds of brokers and traders would trade among each other and participate in buying and selling in reaction to orders. The mine and yours are noticeable ways of rapidly and easily assigning intent to buy or sell respectively.
The mine and yours are commonly used in currency markets like forex. The forex is a highly liquid and large market on the planet where institutional, individual, government investors and corporate trade currencies. In the forex market, when a trader opens a trade, that organization or individual is buying the base currency and selling another. Due to the complexity in forex transactions, investors have established highly specific shorthand terms that enables clarity and efficiency in trades. Mine and yours are used in the forex market to facilitate fast and accurate trading between brokers and traders.