A short-seller borrows a currency, sells it at the current market price, waits for the price to fall and buys the currency later at a lower price in order to return the loan. So, after you sell a currency, you'll have to buy it to close a short position.
A short-seller borrows a currency, sells it at the current market price, waits for the price to fall and buys the currency later at a lower price in order to return the loan. So, after you sell a currency, you'll have to buy it to close a short position.
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