Basically what is happening now is that HFT firms are failing to compete with one another and provide liquidity within certain ranges of price and time so that they can capture as much option profit as possible. There is a special emphasis on options close to expiration that can swing in value more easily over the course of their final trading days.
If someone buys a large bundle of close to expiration options, they will collude to price fix so as to prevent the options from becoming profitable for the purchaser. Obviously large human price pressure can temporarily stop this, but I have seen enormous swings on price on some of the stocks instantaneously on ridiculously low volume.
These are persistent and continue until the positions are exited or higher value positions are entered.
I have also been contacted by my broker firm when doing this asking me if he could put a note on my account and trying to prevent me from doing it.
They could attempt to use the excuse that they are market making for a wider time period, but the choice of this time period would be completely arbitrary. (How long should it take for Facebook to go up 3 dollars? How about just long enough that all of our option profits are maximized, and then it shoots up in one tenth the time and buy pressure of before!) There are many methods to create colluding algorithms.
If someone buys a large bundle of close to expiration options, they will collude to price fix so as to prevent the options from becoming profitable for the purchaser. Obviously large human price pressure can temporarily stop this, but I have seen enormous swings on price on some of the stocks instantaneously on ridiculously low volume.
These are persistent and continue until the positions are exited or higher value positions are entered.
I have also been contacted by my broker firm when doing this asking me if he could put a note on my account and trying to prevent me from doing it.
They could attempt to use the excuse that they are market making for a wider time period, but the choice of this time period would be completely arbitrary. (How long should it take for Facebook to go up 3 dollars? How about just long enough that all of our option profits are maximized, and then it shoots up in one tenth the time and buy pressure of before!) There are many methods to create colluding algorithms.
