Lagardere SCA will look to the market to value its 20 percent stake in Canal Plus France, rather than leave it up to Vivendi SA, which owns the rest. France's largest publisher will follow the planned initial public offering of its stake in the country's biggest pay-television operator "to the end," Chief Executive Officer Arnaud Lagardere said yesterday. If Vivendi makes a last-minute offer, Lagardere might sell only a part of the stake in an IPO, he said.