ok ghosty - seeing as my previous answer was found to be unreasonable by you (even tho' it's the gist) - and the fact that your research skills must be very limited, i thought i'd throw you this freebie.................
"http://www.londonstockexchange.com/en-gb/about/cooverview/whatwedo/equitymarkets.htm"
btw - how's your selling on spikes & buying on lows going with range in corachapi?