If I place an AMO order before 8:57 AM and I placed A Buy Order in Market Type at and if Market opens Gap up at What price will my Order Execute Today’s Opening or Previous Days Closing
If there is a sell order your order will execute on today’s open price
Not at previous closing price, AMO will be executed at the price stock will be trading at today.
This is always the confusion at start 
we think it is after market order and will be executed at previous day closing price but that is not case, order gets executed at todays price.