Replies to post #161913 on DD Support Board and Research Team

[foxwoodsfan]

Are you placing market orders?

[integral]

"Backing Away" is illegal. But I will 'splain. Trader published a quote and got caught, so did not "back away", you got a partial fill. Trader set up if got filled he/she would move to a certain px. And after that does not owe you anything.

This sounds like you are going through Etrade, worst executions of all time. I would suggest moving to TDA or Fidelity for trading. I never worked for Fidelity, but they have, in my professional exp. Fidelity was the, well NFCS clearing and gave and will give you the best executions.

I can promise you, it was all manually set up in the system, no High Frequency Trading on pinks.

[Zorax]

That example is exactly what happens in Forex with mid size brokers/platforms and they even have it on their front page info that they will trade against you at times.
I can put in a position on a total flat line period and watch an instant position go against me, and stay moving further towards my stop until it stops me out almost in seconds. It's a computer there.
And not illegal as far as I know. It's currency futures.

I don't believe any MM's with stock have that capacity or even need to. Like Janice said, they make it on the spread, either way.

Also, you said influence price based on the way volume will go.
There is no predicting volume so an algorithm can't work without having the data to 'work' on.