A foreign exchange trading strategy that attempts to profit from a grid of "carry trade" currency positions. A carry grid entails the purchase of currencies that pay relatively high interest rates, and the concurrent sale of currencies that have low interest rates, at certain pre-set intervals. 
 

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This strategy seeks to capture the interest differential or "carry" between various currencies. The major risk of a carry grid is that a major turnaround in the carry trade can lead to significant losses that may be exacerbated by the multiple trading positions in the trading grid.