Obviously it's NOT a regulatory decision and a broker one, probably forced upon them by GS raising their costs at a level other than base commissions, where at 2/1000 or whatever it is, BT isn't making enough money with the low volume and volatility levels the market is running these days.
I highly doubt this 80/20 decision is being made to increase the trader's profits. Since when does a broker ever think of anything but its own bottom line first.
Please. If I'm doing 1M+ shares a month at 1/1000 or 2/1000 or whatever, the broker is making a killing on my account. The problem is these prop shops are full of rookies with very little experience and a risk aversion level so high they aren't using enough capital to make money on the interest charges side, nor are they generating high enough commission volume, nor are they likely profitable.
I've sat down next to arrogant assholes with more cash than brains telling me this or that of what the market will do and why, analysing the charts like they were reading The Matrix, telling me I'm all wrong, but end up negative loss five days in a row for having no discipline or balls to make the right decisions when. And when the inevitable "prove you're smarter than me" challenge comes, I'll do just that, make a decision, set a trade, hit enter, and cash out net profitable. It takes a few days before they come around to apologise, but they always do.
You don't have to have a PHD in Mathematics to be a great trader. Great traders are as rare as great athetes, great doctors, great lawyers (well, no, lawyers are all scum, but you know what I mean), great whatevers.
This whole prop discussion is, again, making me sick reading it. The model is a dog. Move to a hedge fund prop model. Dump the dead weight, stop trolling the bottom for scalpers, start paying good traders what they're worth, dump a ton of capital on them, buy them the best systems, software, and let them run.
Or get the hell out of the way for those who can. And will.
Quote from Shreddog:
You could always lower their commissions.......