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I've had a lot of bad experiences over the years. One broker was giving fake data on their platform. They would not execute your trade on a volatile stock, say they did, say you lost, and the platform would show a fake low price. One time I opened an account, made a few profitable trades, and...

Does anyone do it? I want to trade some options contracts that are often <0.5/share. The per contract fees add up at that price.

Is it safe to say all the online brokers have execution speeds under 1m for market orders? For limit orders is there similar consistency?

I would like to put in hypothetical spreads and see a chart showing where my risk and payoff is. Is there an online calculator that lets me put in a strike and call/put and it will tell me based on current market price and volatility what the odds are it will get to that strike? What about...

^THIS!^

You may want to look at using some of the math/statistics/scientific programming software that is being tweaked for securities use. Such as matlab, r, mathematica, maple, etc. If you do, please also contribute to those communities and share your work. Post back and let us know how it works out.

What forum software are you guys using, or did you write your own? I like it. Have you ever used phpbb? How do you like the admin features of this compared to phpbb?

I heared that a few years ago someone compared historical data with actual old newspapers in libraries and found out that a lot of historical data out there is fake/bad. Anyone have any info on this?

Any suggested rules for purchasing and executing discounted calls?