dec 3 reuters  canadas main stock index erased early gains to trade lower on friday mirroring the mood on wall street as losses in pot producers eclipsed firmer energy stocks and gains in bank of montreal after it reported upbeat earnings at 1000 am et 1500 gmt the toronto stock exchanges sptsx composite index gsptse was down 7091 points or 034 at 2069112 leading the declines the healthcare sector gsptthc dropped more than 2 losses were concentrated in pot producers cronos group inc cronto canopy growth corp weedto tilray inc tlryto all of which fell nearly 5 the energy sector sptten gained 10 drawing support from a near 3 jump in oil prices after the producer group opec said it could review its production hike policy at short notice if oil demand collapsed due to new lockdowns bank of montreal bmoto added 3 as its quarterly earnings topped market expectations and the lender joined rivals in raising its dividend and announcing a share buyback program read more the benchmark equity index was on track for its third straight weekly loss as sentiment this week took a hit from fears sparked by the new omicron coronavirus variant we dont know whats going to happen if it omicron variant worsens and if we start to see more restrictions coming and lockdowns then that could obviously have a negative impact on the market said colin cieszynski chief market strategist at sia wealth management on the economic front the canadian economy added a net 153700 jobs in november beating expectations and the jobless rate slipped to 60 from 67 in october statistics canada said read more the tsx posted no new 52week highs and five new lows across all canadian issues there were three new 52week highs and 31 new lows with a total volume of 5440 million shares reporting by amal s in bengaluru editing by aditya soni