A blank check company is a development stage company that has no specific business plan or purpose or has indicated that its business plan is to merge or acquire another company or companies, other entity, or person. These companies typically involve speculative investments and are frequently classified as "penny stocks" or "microcap stocks" by the SEC.

Furthermore, a blank check company that registers for a securities offering may be subject to additional requirements for investor protection, such as depositing the majority of the funds raised in an escrow account until an acquisition is agreed to and requiring shareholder approval of any identified acquisition.

A blank check company is a publicly traded entity established without an active business or commercial operations. Its main objective is to raise capital from investors and later use those funds to purchase, merge with, or take over a private company. These firms are most commonly referred to as Special Purpose Acquisition Companies (SPACs).

When investors buy shares in a blank-check company, they are investing primarily in the management team's experience and reputation rather than in an existing business. The capital collected through the public offering is usually placed in a secure trust account until a suitable acquisition opportunity is identified. If no transaction is completed within a predetermined timeframe, investors may receive their funds back.

Blank check companies have become popular because they provide private businesses with a quicker path to public markets compared to a traditional IPO. However, they carry uncertainty since investors often do not know the future acquisition target at the time of investment.