It is very similar of you go for the rolling bets but other positions will be time-related and will expire. For example, there might be three books offered by your SB firm on Vodafone, the Rolling Spread, March Spread and June Spread. Their March positions will expire at 16:30 on 17/03, the June positions at 15:30 on 16/06 - details will be on the p[roduct information sheets. The Rolling positions do not expire but there will be an on-going charge to keep the position open. Eventually, it becomes more economical to have bought the shares and paid the commission and tax, though that potentially brings in a CGT liability at the year-end when you have sold, which a spreadbet will never do.