Order must be done in a market that is eligible for order amalgamation. Please check the 2018Settlement 2019 section of the individual markets. done on the same trading day, for the same stock, of the same action (BUY or SELL e.g. A buy action can be amalgamated with another buy action), executed via the same platform, done through the same account, paid through the same payment mode (cash or CPF or SRS),