I use their historical service for development purposes which has a one day delay. I was about to switch to the live version again but the pricing seems much higherthan when I previously subscribed to live data.

If anyone uses the Telvent DTN NxCore product what are their costs? I used them a couple of years ago for live data and Itried to get new service and it was much more expensive. I just want to know if the costs really went up.Thanks,

Look here for examples calling NAG Fortran DLL from C# code:http://www.nag.co.uk/numeric/csharpinfo.asp

<r>I use Numerical Algorithms Group's Fortran Library which can be called from C# code.They have about 25 functions related to matrix calculations along with hundreds ofother functions that all calculate very fast.You can find more info at: <URL url="http://www.nag.co.uk/numeric/FL/nagdoc_fl22/html/...

<t>A downside put and a downside call hedged delta neutral are the same thing disregarding dividend issues. I would suggest looking for downside skew trades that look cheap. For example if you can sell atm optionsand buy downside puts in a ratio without giving up much IV points then that will probab...

If are a volatility trader and you do a calendar spread with the same size and strike then you will have gamma hedging issues as the front part of the legnears expiration. You will be short gamma with the stock near strike and finding yourself anti-scalping as the market moves around strike.

Sheldon Natenberg - Option Volatility and Pricing Strategies is a good start

I use NAG Fortran Mark 22 dll's in C# for all my quant tasks

I live in NYC and was wondering what are the best recruiters for finding trading/development jobs at Hedge Funds in the area?

I use NAG Fortran 22 in C# (Visual Studio) works like a charm.