A trading technology vendor owned by Canadian exchange TMX Group is set to expand its high-speed network into Russia and Brazil this year, amid increasing efforts by high-frequency trading firms and other investors to exploit opportunities in emerging markets.

TMX Atrium, which was bought by TMX Group in August last year, operates part of the critical infrastructure that links banks, brokers and other trading firms with exchanges, clearers, settlement depositories and market vendors. Its clients include Europe's largest high-frequency trading firms.