Here is the requirements of NASDAQ.... Listing
Post# of 85497
Listing Requirements for All Companies
-Each company must have a minimum of 1,250,000 publicly traded shares upon listing, excluding those held by officers, directors or any beneficial owners of more than 10% of the company.
-Also, the regular bid price at the time of listing must be $4.00, and there must be at least three market makers for the stock.
-However, a company may qualify under a closing price alternative of $3.00 or $2.00 if the company meets varying requirements.
-Each listing firm is also required to follow Nasdaq corporate governance rules 4350, 4351 and 4360.
-Companies must also have at least 450 round lot (100 shares) shareholders, 2,200 total shareholders, or 550 total shareholders with 1.1 million average trading volume over the past 12 months.