Mercado Abierto Electrónico (MAE) is a key institution in Argentina's financial landscape, providing a comprehensive range of services designed to facilitate capital market operations. It operates under the regulation of the Comisión Nacional de Valores, ensuring compliance with all relevant financial norms. MAE specializes in primary placements, secondary negotiations, foreign exchange (FOREX) trading, and the handling of non-standardized derivatives, making it a vital platform for market participants.

The institution's offerings include advanced trading platforms such as SIOPEL, innovative APIs for enhanced user experience, and detailed market data insights covering prices, volatilities, and trading statistics. In addition to its core trading services, MAE also supports market makers and provides post-trade services through MAEClear. With a commitment to transparency and ethical conduct, MAE fosters a collaborative environment for its members, which include brokers, issuers, and legal experts, making it a pivotal hub for financial transactions and information exchange in Argentina.