Short interest

Short interest is the number of a stock's shares sold short and not yet bought back, published twice a month by FINRA. High short interest with few shares left to lend is the fuel for a squeeze; on a contract the funding rate shows the same crowding live.

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  • FINRAFINRA is the Financial Industry Regulatory Authority, US brokers policing themselves under the SEC. It writes broker…
  • Funding rateThe funding rate is the periodic payment between longs and shorts that keeps a perpetual near the real price: above…
  • Hard to borrowA hard-to-borrow stock is one where lenders have few shares left, so the borrow fee jumps and shorts can be recalled.…
  • Short sellingShort selling is selling a borrowed share to buy it back cheaper. The loss is open-ended if the price rises, the…
  • VolumeVolume is how many shares or contracts changed hands in a period. About half of US stock volume is filled off exchange…
  • 13F filingA 13F is the quarterly filing every US institutional manager with over $100 million must make, listing its stock…

Educational content only. Not investment advice. Leveraged products magnify losses as well as gains.

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