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Python for Finance

Python for Finance

3.5 (33)
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Python for Finance

Python for Finance

3.5 (33)

Overview of this book

This book uses Python as its computational tool. Since Python is free, any school or organization can download and use it. This book is organized according to various finance subjects. In other words, the first edition focuses more on Python, while the second edition is truly trying to apply Python to finance. The book starts by explaining topics exclusively related to Python. Then we deal with critical parts of Python, explaining concepts such as time value of money stock and bond evaluations, capital asset pricing model, multi-factor models, time series analysis, portfolio theory, options and futures. This book will help us to learn or review the basics of quantitative finance and apply Python to solve various problems, such as estimating IBM’s market risk, running a Fama-French 3-factor, 5-factor, or Fama-French-Carhart 4 factor model, estimating the VaR of a 5-stock portfolio, estimating the optimal portfolio, and constructing the efficient frontier for a 20-stock portfolio with real-world stock, and with Monte Carlo Simulation. Later, we will also learn how to replicate the famous Black-Scholes-Merton option model and how to price exotic options such as the average price call option.
Table of Contents (17 chapters)
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16
Index

Hedging strategies

After selling a European call, we could hold Hedging strategies shares of the same stock to hedge our position. This is named a delta hedge. Since the delta Hedging strategies is a function of the underlying stock (S), to maintain an effective hedge we have to rebalance our holding constantly. This is called dynamic hedging. The delta of a portfolio is the weighted deltas of individual securities in the portfolio. Note that when we short a security, its weight will be negative:

Hedging strategies

Assume that a US importer will pay £10 million in three months. He or she is concerned with a potential depreciation of the US dollar against the pound. There are several ways to hedge such a risk: buy pounds now, enter a futures contract to buy £10 million in three months with a fixed exchange rate, or buy call options with a fixed exchange rate as its exercise price. The first choice is costly since the importer does not need pounds today. Entering a future contract is risky as well since an appreciation of the US dollar...

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