Global Macro has been one of the most intriguing and most often-covered trading strategies, and it has also been responsible for creating some of the most legendary hedge fund managers. Conversely, it is also one of the most difficult strategies and possibly the least understood. After working as a Portfolio Manager in London I joined Tudor Investment Corporation as an Analyst, and I recall often feeling frustrated that there was no primer or reliable reference guide I could go to in times of need. Luckily, I was surrounded by ext remely talented and brilliant people who gave me so much of their time. As I progressed, I found that more and more friends who worked for other hedge fund strategies had a lot of questions about Global Macro. It dawned on me that there existed a need for an introduction to the strategy of Global Macro and an explanation of how it is applied.