RE: Any theories?15 Oct 2021 08:23
I think it is incredibly difficult to draw meaningful conclusions from the type of analysis you are conducting. First, as you know, every AT trade is both a buy and a sell and the transaction is reported as a buy if the price was above the mid price and a sell if below. So when you analyse the AT transactions it is irrelevant if there were more sells than buys or vice versa. Second, not all transactions have to be same day reported. Some larger transactions might not be reported for three days. Third you have to imagine the MM’s as holding a float. They have to make a market at all times, that is there duty. So at times they will buy in and hold stock. They don’t want to do this so they make sure they shift or minimise the stock essentially by adjusting the bid/offer. Fourth the liquidity of a particular stock, especially a company like Pensana, is going to be highly variable. Sometimes, even in the last month, I have seen bid/offer spreads of over 6p, on one occasion nearly 9% of the bid price. That is ridiculous when you consider that most investors are happy to make 9% in a year! But what the spread tells us is that the MM’s are struggling to match buyers and sellers, liquidity is poor. AT transactions are low because volumes and liquidity is low, O transactions higher as MM’s step in. This can happen obviously at different points in the same day. O transactions will always tend to be higher value per trade than AT because with low volumes and poor liquidity it is more unlikely that the computers will be able to find a match from someone wanting to buy or sell a block. If fo example you set a limit order to buy 100,000 Pensana at 88p the order could sit there unfulfilled for ages. If you broke it down into several trades one or more will probably get filled straightaway. It is the poor liquidity that throws up the odd sets of numbers that attract your attention. Having said that days of high turnover always attract my interest, particularly if there has been no company announcement . The bid/offer spread is always interesting too, for me it is in fact everything because I make money by trading the beta, in other words I don’t care whether a stock goes up or down, I just like it to be volatile. I don’t trade Pensana because I don’t like the company and I have not an earthly clue what the share price is going to do from one day to the next or even one session to the next. It’s one best left To LT investors IMO.