RE: 108k deleayed buy30 Apr 2014 13:52
if they haven't actually paid for the shares and are hoping for them to go up in value before they have to pay. As an example, if someone buys 108,500 shares at 45p they will need to stump up 48,825 GBP (excluding commission etc). Normally they would need to pay within three days (a T3). However, you can also get an extended settlement period, so the person might have gone for a T10, thinking that news will come in that will cause the price to go up a lot. They can then close their position (sort of like selling their shares) before the ten working days are up and only have to repay the value of the shares they bought, thus leaving themselves with a profit, without having had to find nearly 50k in the first place.
If the news doesn't come in time, they still need to settle their account, so they close their position and take up a new one if they still want the exposure to the stock.