The Central Bank of Brazil has sold foreign exchange (FX) swap contracts worth $791 million at an auction, The Wall Street Journal reports. The deal accounted for 18 percent of the total swap contracts offered at the auction.

The auctions extend an opportunity to investors for exchanging contracts indexed to domestic interest rates for paper linked to the U.S. dollar. The swap sales are generally held when the real is rising against the dollar.

Click here for the story from The Wall Street Journal.