[ This is an article that I started writing a few years back, when I was experimenting with Puppy Linux, then put on hold. Much of it is still useful, so the post merits to go public. ] Having written a walk-through on how to set up a Linux system ready for compiling software (see here), … Continue reading Setting up QuantLib in Linux
The principle of pricing in the risk-neutral measure is the foundation of quantitative analysis. I have already written a post which gives an intuitive description of the concept of a risk premium and which discusses some aspects of the risk-neutral approach (see here). In this post I want to look again at risk-neutral pricing. It … Continue reading The easy route to risk-neutral measure pricing
A quick post to show a link to the blog of Tim Johnson at Heriot-Watt Unviersity. Lots of writing on derivatives topics, from models to regulations, plus plenty on markets and the crisis. Worth a look. Click here to visit.
There is a trade off between the explanatory powers of a model and its complexity: the more a model explains, the more complex it will be. Would you disagree with that? Before you answer, let me make a claim: Mathematics is about revealing patterns that simplify. The mathematician's work is actually based on producing simplicity, … Continue reading The efficient frontier for financial modelling
Armed with the Hardy Decomposition for option prices, it now becomes much easier to understand why the smile exists. To be clear, options trader might use the smile to manage supply & demand, but here we discuss the mathematical basis for smile - which is important if you want to understand how to generate smile … Continue reading Smile, it’s Volga!
I recently wrote quite a long post on swap spreads (click here to see that post), covering some general intuition about swap spreads: what does a swap spread represent, why does it move, when does it move, which direction does it go, etc. My blog stats show that a lot of people have read it, so … Continue reading A quant trading model for swap spreads
The N-year swap spread is defined as: N-yr swap spread := N-yr swap rate - N-yr government bond yield. Since most quants spend much less time on the bond market than on the swaps market, they often don't come to appreciate the central importance of the swap spread. Here is an unordered list of why … Continue reading Facts, rules of thumb, and intuition for swap spreads
Every quant knows the expression that defines a forward FX rate on date t with maturity T: where B_f is the foreign discount factor and B_d is the domestic discount factor. But what is the best way to explain this intuitively? Here is my suggestion. Let's pick an example pair, say EUR and CHF, and see … Continue reading Intuition for the forward FX equation
In this post I present some tips on how to understand fixed-income trader jargon. If you are a quant working closely with swaps or options traders (as I was once), then you won't get very far in a discussion unless you have a certain amount of fluency with the following terms. Some were passed on … Continue reading Understanding trader jargon