RE: Usual Trading patterns24 Jul 2019 10:23
Just for confirmation on what SEA7 posted earlier, thanks
SETSqx (Stock Exchange Electronic Trading Service – quotes and crosses)
Finally, SETSqx is a hybrid trading system, combining features from SEAQ and SETS, and is designed for securities with reasonable levels of liquidity, but which may at times require market maker quotes to maintain levels of trading. As such, the electronic order book is split into a quote book and an order book – the quote book being the listing of quotes by appointed market makers, and the order book being electronic orders entered as they are on SETS.
Launched in 2007, market makers provide continuous liquidity throughout the trading day on this system, whilst order book execution takes place through auctions, with four uncrossings designed to concentrate liquidity. Both market makers and non-market makers can participate in these auctions. In essence, SETSqx provides investors the opportunity to trade against market maker quotes, as well as by submitting orders into the auctions.
An important point to make about SETSqx is that market makers do not have a maximum spread requirement as they do on SETS. Consequently, there may be times when you see a share price jump quite significantly, but when you to try and sell via a market maker quote and so profit from this jump in price, the price offered might be far below what you had hoped. This will be due to the sizeable spread resulting in the current bid price being far from the current ask price.
As of January 6th, 2019, there are a total of 778 AIM-listed companies traded on SETSqx.