RE: RE: Contract success or damp squib?30 May 2019 12:16
MMs set the spread, thus the sp. They can give a false impression on Buy & Sell price making both look like sells or buys (providing spread is wide enough to manoeuvre). Lack of news gives no incentive to trade, so if by necessity someone has to cash in, they get a low price (fair enough) but if a buy follows and a marginal profit is made (but still below the spread midpoint) then some investors will see it as a genuine fall rather than a manipulation. This can trigger more sells. On a busy day (when good or bad news hits) it would be difficult with multiple MMs and investors coming out to play, so strategy would be harder to manage - but when things are quiet, beware. Over a medium period and volume of trades the buys and sells must balance out (because the over all number of shares is constant), but if there are just a million or two shares changing hands over a few hours trading, it is easier to skew the perceptions. It's a bit like surfing - most can get movement if there are waves (news), but the skilled surfer can get some momentum, even when there are modest swells (manipulation).
I hope I've not offended any sensitive MMs (but not much chance of finding one of them).