BoM suspends relationship with Optionable

Bank of Montreal (BoM) has suspended its relationship with energy derivatives broker Optionable in the wake of major energy trading losses.

The move, made on 1 May, is a big blow to Optionable as BoM represented about 30% of its revenue, according to its first quarter earnings call with analysts. Optionable shares plunged 39% to $2.81...