Short-Interest Ratio = Shares Sold Short / Average Daily Trading Volume
Short interest is the percent of shares borrowed and sold by bears.
What it is
Short interest is the count of shares that investors have borrowed and sold, betting the price will fall, that remain open. It is often expressed as a percentage of shares outstanding or of free float, and as 'days to cover' — how many days of average trading volume it would take to buy back all the shorts. It reflects bearish positioning in a stock.
Why it matters
High short interest signals notable skepticism about a stock, but it can cut both ways: if the price rises, shorts may be forced to buy back, fueling a short squeeze that pushes the price higher still. The pitfall is reading short interest as a sure sign of decline — heavily shorted stocks sometimes rally hard precisely because of crowded short positions.
How it's calculated
It is the reported number of shares sold short still open; the short-interest ratio divides that by average daily trading volume to get days to cover.
How Quintarthai uses it
Short and smart-money positioning data are surfaced alongside insider and institutional flow on the company pages; review a name on its deep-analysis page.
Cross-border note. Short-interest reporting differs by venue — US figures are published on a regular FINRA/exchange schedule, while Canadian short positions are disclosed through IIROC/CIRO consolidated reports, so timing and coverage can vary for cross-listed names.
FAQ
What is 'days to cover'?
It's the short-interest ratio — the estimated number of days of normal trading volume it would take for all short sellers to buy back their shares.
Does high short interest mean a stock will fall?
Not necessarily — it shows bearish bets are crowded, but a rising price can trigger a short squeeze that drives the stock sharply higher.
Check your understanding
A stock has very high short interest. Which statement best reflects what this does and does not tell you?
High short interest reflects bearish bets, but it is not a guarantee of decline — crowded shorts can be forced to cover on a price rise, fueling a short squeeze that pushes the price up.