RE: Phil20 Mar 2018 13:49
Hi Anth, I worked for a stockbroker in the early 1990s, things may have changed since then so I am happy to be corrected, but essentially the US market works on a trade driven system which means a trade actually has to take place for the price to move. The difference with uk is we have market makers who hold a book of shares and decide the price based on several things including the size of the book of shares they hold, sentiment etc. Market makers can move a price on sentiment alone without the need for any shares to have changed hands. Im not passing judgement on the merits of either system although in the old days one perceived benefit of the UK system was that it made it easier for you to pause trading when things got overheated, market makers just didnt pick up their phones, if they did they were duty bound to deal at the price quoted on seaq (stock exchange auomatic quotation system).