No, you're still saying it's front running. > Basically every index of any significance is already being monitored and rebalancing effects are "front-run" this

No, you're still saying it's front running. > Basically every index of any significance is already being monitored and rebalancing effects are "front-run" this way. > I put the word in quotes, because this is a perfectly legitimate way of front running. No; it is not "front running."