RE:RE:Question for Punjabi
I think the one hour delay after close is because TSX allows 45 minutes of after hour trading at the closing price which starts after 15 minutes after the markets closes.
If there is a market on close imbalance before close it can be settled right at the close and fixes the closing price . These days about 99 % of MOC trades are settled right at close. I think it is at the discretion of the specialist to settle MOC trade right at close or after 10 minutes of close. At one time all MOC trades were settles 10 minutes later. Then you have about extra 5 minutes to cancel the orders. After that after hour trading starts for next 45 minutes at the closing price which is after the MOC settlement.