CBOE Holdings Inc Chief Executive Officer William Brodsky, who steered the operator of the biggest U.S. options market through an initial public offering last June, got a $9.58 million pay package in 2010.

The total was nearly triple the value of his package the year before, a Securities and Exchange Commission filing on Tuesday showed. The increase came from a $6.76 million stock award on June 15, when the company floated its shares publicly. The stock award vests over a four-year period.

At the IPO, CBOE shares fetched $29 each, but have since sunk. Brodsky's stock award was valued at $5.33 million as of December 31, 2010, the filing showed.

(Reporting by Ann Saphir; Editing by Gary Hill)