SAO PAULO, Dec 7 (Reuters) - Brazil's financial exchange operator B3 said on Thursday it expects 2024 capex to be between 200 million and 280 million reais ($41 million to $57 million), from an expected 200 million to 290 million reais this year.

($1 = 4.9115 reais) (Reporting by Andre Romani; Editing by Brendan O'Boyle)