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📉 Short Interest · Short Interest

Reading Short Interest and Short Volume
— Guide to Understanding Selling Pressure

Short interest (Short Interest) and short volume (Short Volume) show market participants' downside bet scale. We fully explain the differences between the two indicators, Days-to-Cover interpretation, and data sources.

💡 Key Takeaway — Short interest is potential downward pressure and short squeeze fuel. High short interest should be interpreted two-ways depending on direction.

What is Short Interest?

Short interest is the number of currently open short interest shares. It is the cumulative quantity of shares that were borrowed and sold but not yet returned (repurchased). In the US, FINRA officially announces it approximately every 2 weeks. It is a position that generates profit when the stock price falls and losses when it rises.

Short Volume vs Short Interest

  • Short Volume — Short interest volume executed during a specific period (flow). Occurs daily.
  • Short Interest — Open cumulative balance (stock). Reported every 2 weeks.

Even if short volume is high, if a lot of closing (repurchasing) occurs at the same time, short interest does not change significantly. Therefore, you need to look at both indicators together to grasp the actual direction of short interest traders.

Interpreting Days-to-Cover

Days-to-Cover = Short Interest ÷ Average Daily Volume. It is the number of days required for short interest sellers to cover completely. If it is 5 days or more, it is considered a stock with strong covering pressure. The higher it is, the stronger the forced covering pressure becomes when the stock price rises, leading to higher short squeeze potential.

Two Interpretations of High Short Interest

  • Downward Pressure Perspective — Institutions and hedge funds betting on a decline. Could be a signal of weakening fundamentals.
  • Short Squeeze Potential — Acts as surge fuel through forced covering buy pressure when stock price rises.

Which way to interpret depends on catalysts (news, earnings, supply/demand changes). DawnScan evaluates comprehensively by combining with other momentum and supply/demand signals.

Data Sources (FINRA)

Official US short interest data is disclosed by FINRA (Financial Industry Regulatory Authority). It can be checked in organized formats on financial data sites such as Finviz, StockAnalysis, and MarketBeat. However, because there is a reporting delay (about 2 weeks), you must consider that it may differ from the current situation.

Caution — Short interest data is released with a 2-week delay. It may differ from the current situation. All information is for reference only, and investment decisions and responsibility rest with you.

Frequently Asked Questions

What is short interest?

Short interest (Short Interest) is the number of shorted shares that currently remain open. It is the cumulative quantity of shares that were borrowed and sold but not yet returned (covered). The larger this value, the more volume needs to be bought back in the future, creating potential upward pressure.

What is the difference between short volume and short interest?

Short volume (Short Volume) is the short interest transaction volume executed during a specific period (a day). On the other hand, short interest (Short Interest) is the open cumulative short balance. Even if short volume is high, if covering (buy to cover) also occurs on the same day, short interest does not change significantly. The two indicators measure different aspects.

Is a high Days-to-Cover a good thing?

A high Days-to-Cover means that short sellers need more time to cover. While forced covering pressure increases when the stock price rises, creating high short squeeze potential, a high short interest itself may reflect institutional investors' bearish outlook, so it cannot be viewed simply as 'good'. The direction depends on catalysts.

Where can I view US short interest data?

US short interest data is officially released by FINRA (Financial Industry Regulatory Authority). It is updated approximately every 2 weeks. You can check it in organized formats on financial data sites like Finviz, StockAnalysis, and ShortSqueeze.com. The DawnScan scanner also synthesizes short interest-related indicators and reflects them in evaluating surge signals.
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Today's Scan
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