Kot - spreads on UK equity options can widen enormously and remain wide for some time, especially in the more illiquid issues. I would strongly recommend that anyone new to options starts with Index options. At least these are very liquid, spreads are tigher 9and if they widen, it is only for a short time which you can usually sit through), not subject to takeovers, profit warnings or complex alterations with special dividends. And they can be traded based on european style settlement so that you cannot get assigned early.