Altice USA Inc's ATUS.N C$11.1 billion ($8.43 billion) revised offer to acquire Cogeco CGO.TO was rejected on Sunday by the Canadian cable company's top investor, the Audet family. Oct 19 (Reuters) - Canada's main futures stock index rose on Monday, as firmer gold prices and renewed optimism around a U.S. stimulus agreement before the presidential election lifted sentiment. GOL/ Gold, which has gained over 26% so far this year, tends to benefit from stimulus spending because it's considered a hedge against inflation risks and currency debasement.