This strategy invests in listed financial and commodity futures markets and currency markets around the world. The managers are usually referred to as Commodity Trading Advisors, or CTAs. Trading disciplines are generally systematic or discretionary. Systematic traders tend to use price and market specific information (often technical) to make trading decisions, while discretionary managers use a judgmental approach. Interestingly, managed futures and global macro strategies have seen increasing interest amongst investors as the bull market has unravelled because they generally exhibit some of the lowest correlations in comparison to major equity index returns.