Chicago trading company Spread Trading is using an online platform called a stock exchange to sell shares and offer the cash value.
The company said it is making money by selling its own stock and taking in commissions.
But investors are concerned about the company’s ability to accurately report its earnings and provide accurate information about its operations, according to Reuters.
The company did not respond to requests for comment.
Spread Trading said it was using the platform to trade “low volume” shares.
The Chicago company said that as of Dec. 31, it had $45.6 million in trading volume, up from $32.5 million in the prior quarter.
Spread trading is a company that allows traders to trade in shares that are traded on a public exchange.
Shares are sold in the open market on the Chicago Mercantile Exchange, which is operated by the Chicago Board of Trade.
The website allows investors to buy or sell shares on its platform, which allows them to trade a range of securities.
In January, the Chicago company announced that it had raised $100 million in a funding round led by Goldman Sachs.
That raised its funding round to $140 million.
Spread trading, however, is not a stock brokerage firm, but a company which helps broker trades and is not regulated by the Securities and Exchange Commission.
Shares of the company were down about 7.5% at $34.37 on Thursday, after closing at $33.99.
Spread Trading said in a statement that it was “committed to providing accurate and transparent information to our investors and the public on the trading of our securities and the markets in which we operate.”
“We are very excited to have this opportunity to offer our investors a more transparent and comprehensive trading platform and our investors can get a clearer understanding of how our securities are traded,” the company said.
“We believe the public deserves accurate and complete information regarding our business and the securities markets in general.”