POET Technologies Inc.

below the link,

http://www.investopedia.com/articles/basics/03/103103.asp

The entry fee a company can expect to pay on the NYSE is up to $250,000 while on the Nasdaq, it is only $50,000 to $75,000. Yearly listing fees are also a big factor: on the NYSE, they based on the number of shares of a listed security, and are capped at $500,000, while the Nasdaq fees come in at around $27,500. So we can understand why the growth-type stocks (companies with less initial capital) would be found on the Nasdaq exchange.