SAO PAULO, Aug 10 (Reuters) - Brazilian stock exchange operator B3 SA on Thursday reported a 4.3% drop in second-quarter net profit, landing slightly below forecasts.

B3 posted a recurring net profit of 1.17 billion reais, while analysts polled by Refinitiv had expected a profit of 1.19 billion reais. (Reporting by Peter Frontini; Editing by Sarah Morland)