How to build a macro trading strategy (with open-source Python)
This post is a condensed guide on best practices for developing systematic macro trading strategies with links to related resources. The focus is on delivering proofs of strategy concepts that use direct information on the macroeconomy. The critical steps of the process are (1) downloading appropriate time series data panels of macro information and target returns, (2) transforming macro information states into panels of factors, (3) combining factors into a single type of signal per traded contract, and (4) evaluating the quality of the signals in various ways.
Best practices include the formulation of theoretical priors, easily auditable code for preprocessing, visual study of data before and after transformations, signal optimisation management with statistical learning, and a protocol for dealing with rejected hypotheses. A quick, standardised and transparent process supports integrity and reduces moral hazard and data mining. Standard Python data science packages and the open-source Macrosynergy package provide all necessary functionality for efficient proofs of concept.