usually if USA up overnight our prices on open higher - only...

usually if USA up overnight our prices on open higher - only beginners buy at the open - so I read.....lol...then very often there may be slight down turn lunch time and then up or down before close....someone else said that the closing price in normal conditions (what the hell is that??..lol) reflects the "correct" share price for any given holding....
when i am off work and ready to buy i like to watch the market and try to pick up some on a dip...:-)...