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your right, you can see that exact outcome in the sheet I attached, the 3th column is indeed useless. I took the example from Natenberg and now you point it out I dont understand why he says so in his book.

yeah I was afraid I was going to say things you already knew, nevermind. I think I am just going to use a weighted average of IV between strikes.

Yes I mean programming language, I presumed you did some programming yourself. I write my charts in java but I think it is very doable in excel also. There is a function for it I believe. I think you are better of trying to understand the implied distribution for one given IV first before...

Erol do you know how to get the implied distribution curve for one given IV? If not I am willing to explain in detail, I learned a lot since you started the topic ;) In what language do you want to implement btw?

I managed to draw the annualized lognormal distribution curve of one strike with underlying at 351 with 0.20 IV, see attachment but I am still not shure how to get something like this http://www.elitetrader.com/vb/attachment.php?s=&postid=2668308 wich I assume represents the full chain...

I still dont understand the difference guys, I understood that the distribution curve is always the same but according to the suggestions I guess it is not. I understand the implied deviation but not the implied distribution, can somebody please explain, thx.

In what sense differs the implied distribution from the implied deviation wich is the inverse log of IV/√days?

I won 8000 euro in the casino in one night with punto banco, played the martingale system and was just very lucky I guess that one night. I lost it all + another 1000 on commisions.

renko charts provide clear trend vision , you could make bricks first and work with them instead of a bunch of quotes http://stockcharts.com/school/doku.php?id=chart_school:chart_analysis:renko

since a few months interactive brokers have aex daily options, aex weekly option strikes are updated earlier also since then

I am also working on recovery, logging all input and read it back on startup should do it. Not that big of a deal I guess.

automate and sleep during RTH ;)

I am also automating my trades at the moment. If you want to be as flexible as possible I suggest you write everything yourself. With that I mean that you dont use 3th party software, you almost always come to a point where you want to do stuff in 3th party software that is not possible but is a...

I write my own charts in java, very flexible and I enjoy programming them. First I used a framework, JfreeChart, but it cost me more time to make that do what I want than to write everything myself on a bare canvas.

I have some code that tries to execute market orders through TWS API. That doesn't have any effect if the symbol is not visible in TWS, even if it is on one of the tabs but the tab is not active. I don't recall other programs that connect to TWS having that problem. Is there a solution for this...

He who buys stock and it drops is mad because he bought, he who buys and it goes up is mad because he did not buy more, he who sells with profit and it goes up more is mad because he sold to low, he who does not buy while it goes up is mad, he who does not sell while it dops is mad, if he gets...

Can it drop to zero and what happens then? Is the delta always 2 when it goes up?

If it fails consistently it also works ;)

I was wondering rather than making a statement. Leverage is not really a reason not to sell naked, either 100 stocks or 1 contract Citi is not a crazy amount of money to lose, so I am still wondering.

I think it is more important for a beginner to start with small positions than not to sell naked, as others said before me naked is less riskier than a position in the underlying. Nobody says dont buy stock while almost everybody screams dont sell naked, why is that?