BM&BOVESPA issued the following statement today:
We hereby inform you that during the morning of October 26 we detected slowness in the transmission of offers between market participants and the Exchange, and slowness in quote updates shown on the trading screens. This was due to technical problems impacting the Financial Community Communication Network, or RCCF, which is administered by Primesys Soluções Empresariais S.A.
For this reason, the Exchange decided to halt trading on the GTS and Mega Bolsa electronic systems at 11:57 a.m.
After the RCCF operations returned to normal, trading in the Mega Bolsa and GTS systems were resumed at 12:50 p.m. and 12:53 p.m., respectively.