Investment services providers other than portfolio management companies that use algorithmic trading to implement a market-making strategy must comply with the following conditions, taking into account the liquidity, size and nature of the market and the characteristics of the financial instrument concerned:
1° They carry out this market making continuously during a specified proportion of the trading hours of the trading platform, save in exceptional circumstances, with the result of providing the trading platform with liquidity on a regular and predictable basis;
2° They enter into a written contract with the trading platform that specifies at least the obligations set out in 1°;
3° They shall have effective systems and controls to ensure that they comply at all times with their obligations under the contract referred to in 2°.