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Algorithmic Short Selling with Python

You're reading from Algorithmic Short Selling with Python

Product type Book

Published in Sep 2021

Publisher Packt

ISBN-13 9781801815192

Pages 376 pages

Edition 1st Edition

Languages

Concepts

Financial Technology

Author (1):

Laurent Bernut

Table of Contents (17) Chapters

Preface

The Stock Market Game

10 Classic Myths About Short Selling

Take a Walk on the Wild Short Side

Long/Short Methodologies: Absolute and Relative

Regime Definition

The Trading Edge is a Number, and Here is the Formula

Improve Your Trading Edge

Position Sizing: Money is Made in the Money Management Module

Risk is a Number

Refining the Investment Universe

The Long/Short Toolbox

Signals and Execution

Portfolio Management System

Other Books You May Enjoy

Index

Appendix: Stock Screening

Summary

Let's recap. The mysterious, mystical, mythical, magical trading edge is nothing but a little formula we learned back in school called gain expectancy. Now, it turns out that strategies with a positive trading edge tend to fall into two buckets. This happens regardless of time frames, asset classes, instrument, and market phases. Market participants expect inefficiencies to either correct and revert to the mean, or to persist and form trends. Those strategies are mutually exclusive. They have opposite payoffs and risk profiles.

We then took time to understand the properties of each strategy type so that we can come up with better ways to engineer a superior trading edge. Now that we understand how those strategies behave, the next step is to roll up our sleeves, pop the hood, and tune up the signal engine.

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Authors (1)

Laurent Bernut

Laurent Bernut has 2 decades of experience in alternative investment space. After the US CPA, he compiled financial statements in Japanese and English for a Tokyo Stock Exchange-listed corporation. After serving as an analyst in two Tokyo-based hedge funds, he joined Fidelity Investments Japan as a dedicated quantitative short-seller. Laurent has built numerous portfolio management systems and developed several quantitative models across various platforms. He currently writes and runs algorithmic strategies and is an undisputed authority on short selling on Quora, where he was nominated top writer for 2017, 2018, and 2019.

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