There is demand to make this happen at 2.50. That means those...

There is demand to make this happen at 2.50. That means those participating have been enticed to do so because they expect the shares to trade north of 2.50 when they start trading again.

By the same token sometimes this caps how much above it will go ie. some who bought at 2.50 get tempted to take profits.

Retail shareholders should wait until the latest point in time before deciding if you want to buy your entitlement at 2.50. if the shares were at 3.50 for example, and you had the cash to participate, it would probably be silly not to buy.

But you are not forced to buy them at all. read the company announcements in next few days/weeks and you will find out the latest point you have to decide. if carnage occurs and they went sub 2.50 then it would be silly to participate.