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They say they do trade. They are just not allowed to trade on the basis of the calles they post live calls on the Web-site. For example, such trading can be considered "front-running" because the person who posts a live call can trade on it before any of the readers.

Also consider https://grapholite.com/Designer (requires Silverlight. It's one of the showcase application for the technloogy linked from Microsoft Silverlight Web-site.) I wonder if something like this exists as "open source".

A couple of reputable sites clearly state that any trades they post are not real trades. In fact their lawyers advise they shouldn't post any real trades as this opens them to all kinds of lawsuits.

An important consideration is most people are not comfortable with loosing money even if they say otherwise. Their idea of a trading account is it's like a saving account. (Unless some money is withdrawn) it only goes up. If you accept investments you have to also accept the investors giving...

"Before borrowing money from a friend, decide which you need most." ~American Proverb "Don't lend money to a friend, you will lose both." ~English Proverb

A good guidline to the future of the Prime Minister is the fate of Metropolitan Police Commissioner Paul Stephenson who resigned over hiring of former News of the World deputy editor Neil Wallis as a PR consultant. Note that the final blow to Sir Paul was dealt when it transpired that Neil...

@yahoo.cn?

Perhaps, intradaybill is referring to datamining bias. Properly done, backtest can be considered a difinitive proof that that an algorithm doesn't work but backtest is not sufficient to confirm that an algorithm does work. A perfectly smooth asset growth curve on a backtest is more often a...

I think posters mentioned Octave and not SciLab because Octave is much closer in syntax to Matlab. Read more here.

Well, no one posts a complete trading system that makes money every week... However, a number of people write about ideas with strong postive expectancy of returns. Just in the raw form these tend to have too high drawdoawns for most traders... As you say yourself, the value is ideas, not a...

you can backtest with a free version. You only need a paid-for version if you intend to place trades through it.

In fact, if we are talking of longer-term trades based on fundamentals, such discussion is more often beneficial than not. There is so much actual information and rumors (both affecting the price) that one simply cannot know all of it. Discussion regarding technicals (entry level and target) in...

A person who posts a refernece to public and freely available edge is the first to get "flamed" in this thread :( Indeed, at the very least it should be larger than 1 by a statistically significant amount. Stop trading the edge naturally. There are people that say the market is the same now...

Modelling fills in a realistic way is a subject of it's own. There is certainly more to it than assuming you get filled at the next trade price (which is, by the way, is gross oversimplification). Realistically, you should add order placement delay and being filled on the right side of the...

When forward-testing, yes absolutely. However, it's worth being aware that historical data from most data providers is different from their own real-time data.

I agree there is no "ideal world". In particular, in an attempt to privide higher-quality historical data many providers "scrub" both historical "tick" and "bar" data in addition to filtering they do in real time. The difference is just in how often there is a discrepancy... and with IB the...

Thanks for the pointer! I will give it a try. Maybe there is a mess-up in my charting software with contract codes, such as using 1-digit year instead of 2 digits... still works fine for the current month. Edit: I just checked it and my favourite charting package is indeed able to extract...

Given the history goes back to 2000 for many instruments, this is more history than most popular data providers offer. Do you know if there is an easy way to extract this data from files provided for use outside Trading Simulator platform?

What you say is true. However, I stand by my comment that it is totally irresponsible to delay delivery of the stock one sold indefinitely. (I called people who do this "crooks" in my earlier post.) A trader usually has some sort of horizon for a short position. So, if the horizon is, say, 7...

Then it is not so bad. As long as the firm can switch off algorithms on a day when these don't work well and there is no penalty or fine is manageable, it should work. Perhaps, I didn't explain well what I meant by trading CFDs. Leading execution firms such as Goldman or UBS are usually...