In regular short-selling,traders borrow assets and sell them at a set price, hoping they can make a profit by buying them later at a lower price.

VOA: standard.2010.05.19

We buy stocks when prices are trending up and sell or sell short when prices are trending down.

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This strategy gives you the higher interest rate of the long term bond but also gives you flexibility to buy and sell the short term bonds if interest rates rise.

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Imagine, when there is an earnings miss, the program automatically triggers orders to sell short and the stock plunges.

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