march 22reuters  futures for canadas main stock index edged up on wednesday tracking gains in bullion prices as investors awaited the us federal reserves verdict on further monetary tightening the fed is expected to deliver quarter of a percentagepoint rate hike at 2 pm et 1800 gmt but a few market participants also expect a pause following the recent rout in global markets march futures on the sptsx index were up 02 at 705 am et gold prices added shine as investors rushed to the safehaven asset ahead of the feds rate decision announcement among company news brokerage scotiabank upgraded africa oil corp aoito to sector outperform from sector perform meanwhile canada deposit insurance corp cdic is reviewing deposit insurance limits to safeguard the countrys financial system the bank and trust companies association said in the previous session the toronto stock exchanges sptsx composite index gsptse closed 07 up at a oneweek high as energy and financial stocks rallied after data showed inflation eased in the previous month dow eminis were up 31 points or 009 at 705 am et while sp 500 eminis were up 275 points or 007 and nasdaq 100 eminis were down 775 points or 006 commodities at 700 am et reporting by johann m cherian in bengaluru editing by maju samuel