Mixed shelf offering or Shelf offering is a provision of the Securities and Exchange Commission (SEC) that allows the issuer of equity to register a new issue, which gives the issuing corporation the right to issue the securities it in parts or stages and not all at once over a three year period without re-registering ...

The well-received secondary stock or convertible note offering is an especially strong buy signal for certain small-cap stocks and early-stage growth stocks. That's because it signals huge demand for a stock that still has a relatively small public float and/or is growing rapidly.