may be you should try these :www.collective2.comwww.striker.comwww.attaincapital.com

simulator.investopedia.com

Hi, is there any paper trade system, website, for stock market in London, Hong Kong, and Tokyo??Thanks a lot for your information.

Will you go as far as telling us the name of your system so we can follow how well you are doing ?

15-20% year is excellent for a market-neutral strategy? Question is whether you actually need a total of about 200 stocks, whether you can reduce the number to 50 (25 long/25 short). This way you would reduce transaction costs. Just an idea, because there needs to be an optimal size on number of stocks.

What is the Capital employed and what is the leverage? We need to know what your transactions would look like. I think you may assume 0.5 cents per share (or less), 2 cents slippage if you're using intraday data, up to 0.25% slippage if you're using end of day data. Also if capital and leverage are known one may estimate the margin interest, short rebate etc.

What's the point? I could roll some dice and track the returns. At the end of it, I wouldn't know anything about the dice I didn't know at the beginning. The amount you will learn about your strategy by having two years of hypothetical returns in hand, is crumbs compared to the amount you will learn in two years, right? If your strategy is high-frequency, you should be able to accumulate capital fairly quickly, assuming you already know something about the dice. If you can't predict what the expected returns are without the two years experience - and you probably can't - then the two years experience won't help you much...