Bridgewater, the world's largest hedge fund, faces a race against time to avoid a loss in its biggest strategy

Bridgewater's Pure Alpha strategy, which managed about $75.8 billion as of the end of September, was down through that month, according to client documents.
The strategy is long stocks, short bonds and long emerging market currencies versus the dollar and the euro, according to the documents. 
Bridgewater now has one quarter to turn around performance. If it finishes down for 2017, it will be the first down year in over a decade.
 
NEW YORK – The world's largest h