a formal written offer to sell securities (filed with the SEC) that sets forth a plan for a (proposed) business enterprise; "a prospectus should contain the facts that an investor needs to make an informed decision"
a hypothesis that has been formed by speculating or conjecturing (usually with little hard evidence); "speculations about the outcome of the election"; "he dismissed it as mere conjecture"
an investment that is very risky but could yield great profits; "he knew the stock was a speculation when he bought it"