Oli Guei

Options pricing with Python

Options pricing is the process of determining the value of an option contract. Options are financial derivatives that give the holder the right, but not the obligation, to buy or sell an underlying asset at a predetermined price and date. The value of an option is determined by various factors

Data visualisation with python

Data visualization is an important aspect of data analysis and understanding. It allows us to easily identify patterns, trends, and outliers in our data, which can help guide our analysis and decision-making. In this blog post, we will explore how to use Python to create various types of data visualizations.

My 2019 reading list

My goal to read more books each year took a setback in 2018 because I spent a lot of time in the second half of the year working on our startup. We were fortunate to get accepted in YC Startup school and have made significant progress after the program. The

List of ethical and or sustainable fashion brands I've discovered

There are many things to consider when you decide to purchase clothes from labels with ethical and sustainable practices. Researching and buying ethically produced and sustainably sourced clothes can be tiresome. Are you the kind of person who cares more about the origin of the materials, the working conditions of

How to fetch JSON data in a React app with Axios

React is a popular JavaScript library for building user interfaces, and one of the most common use cases is fetching data from an API. In this blog post, we will explore how to fetch JSON data in a React app and display it in a component. The first step is

Oli Guei © 2026