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visits member for 2 years, 9 months
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May
12
answered How to price long dated options most efficiently?
May
12
comment Why is “full” Yield Curve (term structure of interest rates) 3 component based?
Not necessarily. There are a myriad of reasons why certain instruments are used and that can change over time. Example, the libor "rigging" scandal fundamentally changed how libor curves are built at many desks. I am not a curve building expert by any means, just saying chosen instruments do not always depend on liquidity alone.
May
12
comment Why is “full” Yield Curve (term structure of interest rates) 3 component based?
Well, tread carefully, I have only peeked at QLNET and saw the bootstrapping and curve building functions, I have not used them. Maybe more experienced users will add more insight.
May
12
comment How to price long dated options most efficiently?
I said European. I do not have much experience pricing long-dated American options. Maybe someone else can chime in.
May
12
comment How to price long dated options most efficiently?
BS is not a good model for long-dated European options. Among others put delta is severely understated. Also, you want to keep in mind that implied volatility for long term options exhibits strong auto-correlation with time and reflects a geometric decay pattern. This should lead to the next question then whether the volatility process modeled should not be given much more importance for long-term options over short-term options. Keyword: Stochastic volatility. (contrary, it has been shown that stochastic rate processes do not really improve the model for long-dated options). My 2 cents...
May
12
comment In a mis-matched trade who profits?
would be nice to add a "disclaimer" :-)
May
12
comment Why is “full” Yield Curve (term structure of interest rates) 3 component based?
Look at the "Related" section on this page alone, and you shall find all your questions answered. QLNet provides yield curve building, bootstrapping, and related functions.
May
10
comment Looking for C# library that provides/contains performance analytics
...and running the accompanied sample code and having to deal with runtime errors is a show stopper for me, meaning the library is either hopelessly outdated or the library was coded up in a sloppy fashion. (And yes, I configured RServe correctly). I rest my case with this, if RServe works for you then all the more power to you.
May
10
comment Looking for C# library that provides/contains performance analytics
I am not sure what you are talking about. R is not the right solution for me and I would only go this route if there is no other alternative and here is why: It takes more than 10 seconds to send a simple array/vector with 1,000,000 elements through R.NET. On the other hand the Rserve C# client comes out of the box with runtime errors. Unfortunate but very typical experience for me with many packages and extensions regarding R. The big issue is that a lot of this stuff is not peer reviewed and more often than not packages contain serious bugs.
May
10
awarded  Nice Answer
May
9
comment Looking for C# library that provides/contains performance analytics
...but by all means if you think your suggestion is the best you can think of feel free to write up a 1-2 liner as answer...it is definitely A way to solve the question at hand.
May
9
comment Looking for C# library that provides/contains performance analytics
@Dirk Eddelbuettel, slightly bizarre is all I can say. Not sure whether you would also convince your coworkers or bosses to use 2-3 detours to force them into R when a Java or C++ solution is asked for. PerformanceAnalytics is a great R package if I wanted to use pure R. But to ship a large time series across the .Net-R interface and having to wait literally an eternity just does not make it feasable for me to go this route.
May
9
revised Looking for C# library that provides/contains performance analytics
added 165 characters in body
May
9
comment Looking for C# library that provides/contains performance analytics
@DirkEddelbuettel, nobody disputed that a package for R exists and I acknowledge your expertise on the R side (among most likely other, to me unknown, areas) . But I think I made clear that I look for a C# library, not an R package. I am a bit irritated why the condescending tone, if you do not know of such library or dislike Windows or .Net for that matter, why having to comment?
May
9
awarded  Promoter
May
9
comment What does “true”volatility mean in volatility comparison?
Do you have backup for this claim? I am not aware that institutional vol traders peruse specific compressed bar data to calculate realized vol. Some may, but to my knowledge there is no best practices that refer in any way to 5 minute data.
May
8
revised Calculate correlation between two sub portfolios and the combined portfolio
added 4 characters in body
May
8
answered Calculate correlation between two sub portfolios and the combined portfolio
May
8
answered What does “true”volatility mean in volatility comparison?
May
6
comment Looking for C# library that provides/contains performance analytics
@Joshua Ulrich, I am familiar with the library and have coded against it but at this point I rather like to perform all computations natively in C# or else export the dataset (most likely through Redis) and run the analytics in R. At the moment I prefer to run within C# only. R.NET is good at running a couple commands but shipping larger datasets through the API seems very slow.