QuantLandi Digest
Alexandre LandiWhere financial theory meets implementation
| Platform |  | Pricing | Only free issues | Publishes | Twice weekly |
|---|---|---|---|---|---|
| Issues | 51 | Founded | 2 years ago | Last Issue | 16 days ago |
| Active | |||||
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Where Log Returns Come From
Many courses define the log return as ln(S_t/S_0) and move on. But where does that formula actually come from?
It is not an arbitrary transform. Take the continuous-compounding formula Pe^(rT) = FV and solve it for r. Set T = 1 on a price...
From Discrete to Continuous Compounding
You have $1,000 today. Under continuous compounding, how much will you have in 1, 2, or t years? The compact answer is Pe^(rT). But where does e come from? And what does “continuous compounding” actually mean?
In this slide deck, I build t...
Arithmetic vs. Logarithmic Returns
+10% in year 1, then −10% in year 2. Some people say the two-year return is 0%. Obviously (?), it isn’t.
Arithmetic returns compound by multiplying growth factors, not by adding period returns. Logarithmic returns do add over time - but re...
Foundational Maths You Need Before Studying Quant Finance
Weak foundations make it very hard to follow asset pricing, derivatives, risk management, and portfolio theory once classes begin.
I put together a self-contained summer prep deck for students joining our MSc in Financial Markets and I...
7 Reports That Move Markets
Many finance graduates have never read a single institutional report.
Yet in an interview, one of the fastest ways to stand out is to say: “In last week’s FOMC minutes, two dissenting governors opposed the easing bias - here’s why that mat...
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