KEY POINTS
  • CNBC's Jim Cramer told investors that insider buying coupled with strong short interest could be a solid buying opportunity.
  • "If a lot of people are shorting a stock and management starts buying it in sizable amounts, then you should start doing your homework," he said.

CNBC's Jim Cramer told investors about a potentially bullish tell: Watch for when management buys back shares of a stock with high short interest.

A short position is created when an investor sells shares they borrowed with the expectation that they will decrease in value. If the stock falls, the investor can buy the shares at a lower price and make a profit. Short interest refers to the total number of shares that have been sold short and not yet repurchased.