<ul><li>Canada's main stock index opened slightly lower on Tuesday in thin trading volumes, hurt by telecom stocks, as investors clocked in for a half-day trading session on Christmas Eve.</li><li>The TSX deleted 28.46 to open Christmas Eve Day at 24,720.52.</li><li>Toronto markets will close at 1:00 p.m. ET on Tuesday on account of a half-day Christmas holiday. Trading volumes are expected to be light throughout the day.</li><li>In corporate news, Canada's antitrust regulator said on Monday it was suing Rogers Communications for allegedly misleading consumers about offering unlimited data under some phone plans. Rogers shares began Christmas Eve down 20 cents to $43.69.</li></ul>

TSX Off at Start of Truncated Session

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