actually all trades hve impact. you can do a 1 lot micro mkt order and the mkt will tick up or down a a tick to fill and you think that isnt mkt impact. You left out the key point which i doubt you even are aware of which is MKT IMPACT DURATION! that is what you worry about when filling a large order but again. why do you care so much ? lol. gotta keep the views up on the site to sell sell the miracle trading systems
That's not impact as a one lot is not going to cause the mid to change. I am referring to the impact to microstructure and you're trading one lots on sim.