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X-chair for me, combined with an Upliftin desk. Highly recommend both

Could you just launch 2 instances of your strategy? 1 logged into sim, the other logged into real? I assume you're trying to compare paper vs real fills?

Virtu has also executed several M&As, and has been overhauling KCGs old platform, which I suspect is a hurting their margins. Virtu also only has ~150 employees. $2M per employee PROFIT is pretty good! Compare that to $350K for Goldman

put it on github, and link the project.

I was under the impression that you can not short naked in an IRA account?

I mis-stated that. I meant to say that the claim (!not by me) was made that risk is increases as trade frequency increases . I agree with what u said, and have been trying to argue that. Risk is a function of volatility, and volatility decreases with smaller dt

You're focusing on the wrong thing! Forget Virtu, forget 51%, forget ES, and forget 1 Tick stops. You made the claim that risk is inversely proportional to trade frequency, which is completely false. Your also essentially claiming that longer term is better because you have a more favorable...

I was only making a point, which you seem to be missing. The point is individual trades don't matter...only the expected value of the trade, and how many times it can be replicated. Also... Your looking at their earnings, you need to look at their trading income. They have other costs...

That's what I recommend a few posts back. I'm shocked that people don't do this for every single trade, regardless of performance issues. You can learn so much from it. My system does it automatically at the end of every trading day and generates a report for me. I used to design guidance...

But I'd take a strategy that wins 51% of the time (or 1% of the time for that matter) with an expected return of 1 tick ($12.50) and trades 100 times a day, over your 3 point strategy that trades three times a day with a higher probability. This is the game Virtu, Jump, et. al are playing...not...

You also have significantly more opportunities on the shorter time frame (in theory).

No ones saying your going to go broke (although statistically, you will ;) ) . You made a statement that smaller time frames have higher risk than longer time frames, and later caveated it by saying you actively manage risk, which caps your exposure. Your implication is that you can't...

Volatility of returns on the underlying increases with time frame, i think thats what they're getting at. You're saying your risk is capped because you are actively managing it (thats a good thing)...but so is the guy who is trading on a much shorter time frame. I'd argue that his risk is less...

Thats the better question.

Pretty sure you'd pay $100 for your 100x10 trades. If u do this sort of thing often, you may want to looked at the tiered fee structure....$0.35 min commission (it appears you're using IB fixed)

This is not correct. "High" frequency strategies can have much higher sharpe ratios than longer period strategies have. Having numerous high probability entries, as hft does, has the effect of driving volatility of returns down. Its far more likely your back-test is not appropriately modeling...

I assume others here are using some form of VAR calculations in their automated trading strategies? Prior to releasing an order to an exchange, I ensure that it does not put my VAR above my risk tolerance. For "Naked" orders, this is straight forward... Its a function of the probability...

Absolutely: put in the work, study the markets, and come up with your own strategy.

This is a really bad idea, RandBots...Those strategies probably won't make you any money, outside of dumb luck. If you want a "free ride"....check out Collective2.com ... much lower costs, and you don't need to run a server...probably more transparent in terms of performance than the...

If he tells you how, you won't need to watch anymore. Ricky Guitierrez (Sp) is the worst(best) at this...has super specific titles like "how to make $700 a day day trading stocks"...and then says nothing of real value for 15 minutes...and he has more than 100k YouTube followers