Short Interest and Borrow
Short interest is a dated snapshot of open equity short positions; days to cover compares it with volume, while borrow fees and rebates measure carrying economics.
Short-sale mechanics, stock borrowing, short-interest data, borrow costs, and Regulation SHO controls.
Short selling and stock borrowing combine a market transaction with financing, margin, settlement, and regulatory controls. Selling short is not simply a view that a price will fall: the position also depends on borrow availability, carrying cost, account equity, and the ability to cover.
Use Short Selling and Stock Borrowing for the transaction workflow, locates, actual borrowing, carrying risks, covering, and the distinction between ordinary and naked short-sale concerns.
Use Short Interest, Days to Cover, and Borrow Costs for position snapshots, short-sale volume, percent of float, the short-interest ratio, hard-to-borrow fees, collateral rebates, and squeeze misconceptions.
For U.S. equity order marking, Rule 201 price tests, locate requirements, fails to deliver, close-outs, and threshold lists, use Regulation SHO. Regulatory requirements are market- and jurisdiction-specific and should be checked against current primary sources.
For broader context, return to Trading Positions, Margin, and Short Selling.
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Short interest is a dated snapshot of open equity short positions; days to cover compares it with volume, while borrow fees and rebates measure carrying economics.
Short selling means selling a security short and later covering it; the workflow also depends on locates, stock borrowing, margin, settlement, and recall risk.