Hedge funds are often related to the yen carry trade. This paper investigates the exposures of hedge funds that focus on currency assets to the returns of the yen/USD carry trade. The results suggest that the exposure of these hedge funds is positive only when carry trade returns are negative. Also, the results implicate that the exposure of hedge funds to the carry trade returns may be conditional on the implied volatility of the yen/USD exchange rate. And changes in this implied volatility have statistically significant impact on the returns of hedge funds. Copyright © 2010 John Wiley & Sons, Ltd.