Exhibit 99.1

Investor Inquiries:

Bill Dunaway, 816-457-6246

billd@fcstone.com

FCStone Group, Inc. Board of Directors Authorizes $20 Million Stock Repurchase Program

Kansas City, Mo., July 15, 2008 – FCStone Group, Inc. announced today that its board of directors has authorized the repurchase of up to $20 million of its outstanding common stock from time to time during the next 90 days in open market purchases and private transactions as permitted by securities laws and other legal requirements and subject to factors such as market price, the Company’s operating results and available cash, general economic and market conditions, and other considerations the company deems prudent.

“The board’s decision to authorize the repurchase of our shares underscores our confidence in FCStone’s financial strength and our ability to enhance long-term shareholder value,” stated Pete Anderson, President and Chief Executive Officer of FCStone. “We believe that our current financial model and operating requirements should allow us to execute this program while we make the necessary investments in our business to ensure future growth.”

About FCStone Group, Inc.

FCStone Group, Inc., along with its affiliates, is an integrated commodity risk management company providing risk management consulting and transaction execution services to commercial commodity intermediaries, end-users and producers. The firm assists primarily middle market customers in optimizing their profit margins and mitigating exposure to commodity price risk. In addition to risk management consulting services, FCStone, LLC, operates one of the leading independent clearing and execution platforms for exchange-traded futures and options contracts. FCStone Group, Inc., serves more than 7,500 customers and in the 12 months ended May 31, 2008, executed 98.8 million derivative contracts in the exchange-traded and over-the-counter markets. The FCStone Group companies work in all the major commodity areas including agriculture, energy, renewable fuels, foods, forestry, cotton and textile, dairy and currency exchange. Headquartered in the Midwest, it has offices located throughout the world and is a clearing member of all major North American Futures exchanges. FCStone Group, Inc., trades on the NASDAQ Global Select Market under the symbol “FCSX.”

Forward Looking Statements

This press release may include forward-looking statements regarding, among other things, our plans, strategies and prospects, both business and financial. All statements other than statements of current or historical fact contained in this press release are forward-looking statements. The words “believe,” “expect,” “anticipate,” “should,” “plan,” “will,” “may,” “could,” “intend,” “estimate,” “predict,” “potential,” “continue” or the negative of these terms and similar expressions, as they relate to FCStone Group, Inc., are intended to identify forward-looking statements.

We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy and financial needs. They can be affected by inaccurate assumptions, including the risks, uncertainties and assumptions described in the Company’s filings with the Securities and Exchange Commission. In light of these risks, uncertainties and assumptions, the forward-looking statements in this press release may not occur and actual results could differ materially from those anticipated or implied in the forward-looking statements. When you consider these forward-looking statements, you should keep in mind these risk factors and other cautionary statements in this press release.

Our forward-looking statements speak only as of the date of this press release. We undertake no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.