stocks in toronto pared back some gains of the previous day on wednesday midtrading after a rocky morning with the sptsx composite index falling 9783 points the bank of canada lifted the policy rate to 15 from 10 warning that inflation is heading higher and the economy is overheating and that it is willing go further to drive inflation down to its 2 target in the session most sectors were lower led by process industries and consumer durables while commercial services and health tech led the few gainers jamieson wellness inc shares rose after it said has agreed to acquire nutrawise health  beauty corp for 210 million at midday canadas sptsx composite index was down 049 at 2062753 and the bluechip sptsx 60 fell by 048 to 124892 jamieson wellness inc shares were 44 higher at c3587 after it said the acquisition offers opportunities for future growth synergies as it leverages its product portfolio operational capabilities and global footprint to accelerate the expansion of nutrawises brand youtheory across new categories and channels laurentian bank of canada shares rose by 77 to c4158 after the company reported betterthanexpected earnings and revenue in the second quarter blackberry ltds torontolisted shares fell 47 to c726 after it said it is exploring alternative options to the 600 million noncore patent asset sale it had agreed to with catapult ip innovations