Search Results
Search type | Search syntax |
---|---|
Tags | [tag] |
Exact | "words here" |
Author |
user:1234 user:me (yours) |
Score |
score:3 (3+) score:0 (none) |
Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
Views | views:250 |
Code | code:"if (foo != bar)" |
Sections |
title:apples body:"apples oranges" |
URL | url:"*.example.com" |
Saves | in:saves |
Status |
closed:yes duplicate:no migrated:no wiki:no |
Types |
is:question is:answer |
Exclude |
-[tag] -apples |
For more details on advanced search visit our help page |
3
votes
Accepted
Simulation of Geometric Brownian Motion
Just to explain the formulae for the mean and variance! We can start with the solution of the GBM SDE:
$S_t=S_0\,e^{\left(\mu-\frac{1}{2}\sigma^2\right)t+\sigma W_t}$
then,
$\frac{1}{S_t}=\frac{1}{S_0 …
1
vote
What is the stock price expectation?
Let's focus on the technical note, but let's change the symbols for easy comparison. The note has two parts:
Firstly, if we assume that the stock price is log normal with the following parameters:
$ …