Trade price in pre open market?

Hi, Are all the trade price in pre open market be same as open price? If two people places order at two different prices under any circumstances there is a possibility of trade happening at two different price. I know basic purpose and functioning of pre market. Some times I see traded quantity at 9.02 am 9.03 am etc. So I am confused how the traded quantity is determined before completion of 9.08 AM. That is before open price is determined?

Volume what it shows it just indicative, not actual trades before 9.07.

oh…Thank you… That cleared the doubt…