FORTUNE — The “Abe Trade” just hit a major bump.
Toward the end of last year, a number of large hedge funds began piling into Japan. Driving the bet was the country’s new prime minister Shinzo Abe, who said he favored flooding Japan’s markets with cash from its central bank in order to finally pull its economy out of its perpetual slump. And hedge funds, for all their griping about Ben Bernanke for doing essentially the same thing — on a relatively smaller scale, no less — fell in love with Abenomics.
The most popular trades appear to have been to bet against the yen and to buy up Japanese stocks. Both of those trades crapped out on Thursday. Japanese stocks plunged 7%. The yen was up 2% against the dollar. Thursday’s Japanese market rout appeared to be based on new fears about a slowdown in China and the prospect that the U.S. central bank would stop buying bonds to drive down interest rates.
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This might not be the end of the “Abe Trade.” It’s hard to know how much money was lost in the Japan rout. Many of the hedge funds had made pretty good money on the trade in the past few months, so they may not be in the red on Japan even after the recent drop. But here are the fund managers who likely took the biggest hits:
1) Dan Loeb

2) Paul Tudor Jones

3) Stan Druckenmiller

4) Louis Bacon

Bacon’s Moore Capital has struggled lately, forcing it to give back some his investors’ money. The one big trade that has paid off is Japan. Bacon has been reportedly betting against the yen since last November. As of the end of the first quarter, Moore had investments in Japanese finance companies Mitsubishi and Sumitomo Mitsui, though Japan’s stocks didn’t appear to make up a big portion of its stock portfolio.
And one winner: Kyle Bass

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But perhaps the best call on Japanese stocks came from the relatively unknown Sensato Capital Management, which manages $1.3 billion and is based in San Francisco. The firm’s Asia fund, which was up 7% in April alone, has bet heavily on Japanese stocks this year. But on Monday, the firm’s co-founders Ernest Chow and Jonathan Howe sent a letter to investors saying they now believed the Japanese stock market was overvalued, and it was time to sell. Well played.