Short Volume
The portion of a day's trading volume recorded as short sales. Often misread as short interest — it is not: much of it is market makers marking hedging trades short, so high short volume does not mean a large net short position.
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Naked Short Selling
Ordinary short selling borrows shares before selling them. Naked short selling skips that step — selling shares that were never borrowed or arranged for. It is tightly regulated in the US, it is one way 'fails to deliver' can arise, and it sits at the centre of one of the most heated debates in modern markets. Learn what it is, what Regulation SHO actually requires, the market-maker exemption, and how to read the controversy without the myths.
Short Selling
How do you profit when a stock falls? You borrow it, sell it, and buy it back cheaper. Short selling is one of the market's most powerful — and most dangerous — mechanics: theoretically unlimited losses, a borrow fee, dividends you owe, and the ever-present risk of a short squeeze. Learn exactly how it works, where the borrowed shares come from, and why the risk is shaped so differently from going long.
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