<Ul> <Li> Spot market </Li> <Li> Swaps </Li> </Ul> <Tr> <Th> Trading </Th> </Tr> <Tr> <Td> <Ul> <Li> Participants </Li> <Li> Regulation </Li> <Li> Clearing </Li> </Ul> </Td> </Tr> <Ul> <Li> Participants </Li> <Li> Regulation </Li> <Li> Clearing </Li> </Ul>

What is the function of the stock exchange