Open outcry trading on the BM&F, the Brazilian derivatives exchange, will end on June 30. The move completes a migration to electronic trading that began in 1990 on the Bovespa, the São Paulo stock exchange with which the BM&F merged a year ago.

If BM&FBovespa has been slow to complete a change made years ago by many of the world’s better-known exchanges, it is moving quickly to challenge them for world leadership.