Overview of Machine Learning in Trading

Machine Learning for Quants and Traders

By Milind Paradkar

In recent years, machine learning for trading has become the buzz-word for many quant firms. In their quest to seek the elusive alpha, a number of funds and trading firms have adopted to machine learning. This post gives a brief overview of the development of machine learning and its growing importance for quants and traders alike.

Machine Learning gains popularity in Algorithmic Trading

Machine learning techniques can be applied to trading using programming languages like Python, R, C++ etc. Machine learning packages/libraries are developed in-house by firms for their proprietary use or by third parties who make it freely available to the user community. In recent years, the number of machine learning packages has increased substantially which has helped the developer community in accessing various machine learning techniques and applying the same to their trading needs.

Source: kdnuggets.comThere are hundreds of ML algorithms, these algorithms can be classified into different types depending on how these work. For example, machine learning regression algorithms are used to model the relationship between variables; decision tree algorithms construct a model of decisions and are used in classification or regression problems (Machine Learning: An Introduction to Decision Trees). Of these, some algorithms have become popular among quants. Some of these include:

  • Linear Regression
  • Logistic Regression
  • Random Forests (RM)
  • Support Vector Machine (SVM)
  • k-Nearest Neighbor (kNN)
  • Classification and Regression Tree (CART)
  • Deep learning

These ML algorithms are used by trading firms for different purposes. Some of these include:

  • Analyzing historical market behavior using large data sets
  • Determine optimal inputs (predictors) to a strategy
  • Determining the optimal set of strategy parameters
  • Making trade predictions etc.

Here are a couple of machine learning examples for our readers:
Machine Learning and Its Application in Forex Markets [WORKING MODEL]
Predictive Modeling in R for Algorithmic Trading

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Resources to Study Machine Learning

Keeping oneself updated is of prime importance in today’s world. Professional quants and traders who intend to expand their knowledge can take up machine learning courses (part-time or full-time) which are offered by some well-known institutes. This can help enhance their career or provide them additional tools in the development of trading strategies for themselves or their firms.

Here’s a blog on ML resources – Free Resources to Learn Machine Learning for Trading

Other Research Areas

Machine learning techniques are applied in various markets like equities, derivative, Forex, etc. Machine learning enthusiast/Quants/Traders who intend to apply machine learning techniques to trading should also have some know-how on related subjects like Programming, Basic statistics, Market microstructure, Sentiment analysis, Technical analysis etc.

Machine Learning Competitions

There are a number of sites which host ML competitions. These competitions although not specifically targeted towards the application of ML in trading, can give good exposure to quants and traders to different ML problems via participation in competitions & forums and help expand their ML knowledge. Some of the popular ML competition hosting sites include:

Funds using Machine Learning Techniques

Some established funds like Medallion fund, Citadel, D.E. Shaw are said to be using machine learning techniques for trading. However, the extent to which these ML techniques are applied in trading remains unknown to outsiders, and so does the contribution of machine learning strategies in the overall performance of these funds.

There are some hedge funds that have revealed extensive use of machine learning techniques as part of their core strategy. For example, Taaffeite Capital Management (http://taaffeitecm.com/). Taaffeite Capital trades in a fully systematic and automated fashion using proprietary machine learning systems. Here is a list of funds and trading firms that are using artificial intelligence or machine learning.

Future of Machine Learning in Trading

The rise of technology and electronic trading has only accelerated the rate of automated trading in recent years (Goldman Sachs automated trading replaces 600 traders with 200 engineers). Machine learning has found good adoption with global firms, both big and small. This will get further momentum as quants experiment with new developments in machine learning aided by superior hardware. This makes it imperative for quants and traders to gain a good understanding of machine learning to remain productive in the trading world.

Next Step

Sign up for our latest course on ‘Decision Trees in Trading‘ on Quantra. This course is authored by Dr. Ernest P. Chan and demystifies the black box within classification trees, helps you to create trading strategies and will teach you to understand the limitations of your models. This course consists of 7 sections from basic to advanced topics. Avail introductory discount, click here to know more.

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