sentences:  In post-trading, the prices for all hours are already known (the MCP being determined during the auction before) and the surplus volumes are sold and bought on a first-come, first-served basis, offering the traders a last-minute opportunity to sell or buy volumes at a known price.Trading at EXAA takes place 5 days a week, from Monday to Friday, with the volumes for Saturday, Sunday and Monday being traded together on the Friday before.This set-up has its advantages as well as its disadvantages.