Item 5. MARKET FOR REGISTRANT’S COMMON EQUITY; RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

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Common Stock Information

Interactive Brokers Group Inc.’s Class A common stock trades under the symbol “IBKR” on the Investors Exchange LLC. As of February 22, 2019, there were six holders of record, which does not reflect those shares held beneficially or those shares held in “street” name. Accordingly, the number of beneficial owners of our common stock exceeds this number

Dividends and Other Restrictions

We currently intend to pay quarterly dividends of $0.10 per share to our common stockholders for the foreseeable future.

Stockholder Return Performance Graph

The following graph compares cumulative total stockholder return on our common stock, the S&P 500 Index and the NASDAQ Financial-100 Index from December 31, 2013 to December 31, 2018. The comparison assumes $100 was invested on December 31, 2013 in our common stock and each of the foregoing indices and assumes reinvestment of dividends before consideration of income taxes.

The stock performance depicted in the graph above is not to be relied upon as indicative of future performance. The stock performance graph shall not be deemed to be incorporated by reference into any of our filings under the Securities Act or the Exchange Act, except to the extent that we specifically incorporate the same by reference, nor shall it be deemed to be “soliciting material” or to be “filed” with the SEC or subject to Regulations 14A or 14C or to the liabilities of Section 18 of the Exchange Act.

Use of Proceeds

Purchases of IBG LLC membership interests, held by Holdings, by the Company are governed by the Exchange Agreement, a copy of which was filed as an exhibit to our Quarterly Report on Form 10-Q for the quarter ended September 30, 2009 and filed with the SEC on November 9, 2009. The Exchange Agreement, as amended June 6, 2012 and July 23, 2015, provides that the Company may facilitate the redemption by Holdings of interests held by its members through the issuance of shares of common stock through a public offering in exchange for the interests in IBG LLC being redeemed by Holdings. On an annual basis, each holder of a membership interest may request that Holdings redeem the liquefiable portion of that holder’s interest. We expect Holdings to use the net proceeds it receives from such sales to redeem an identical number of Holdings membership interests from the requesting holders.

At the time of the Company’s IPO in 2007, three hundred sixty (360) million shares of authorized common stock were reserved for future sales and redemptions. From 2008 through 2017, Holdings redeemed 18,871,614 IBG LLC shares with an approximate total value of $525 million, which redemptions were funded using cash on hand at IBG LLC and through issuances of common stock.

On July 27, 2018, the Company issued 1,537,727 shares of Class A common stock (with a fair value of $94 million) to Holdings, for sale for the benefit of, certain of its members in exchange for membership interests in IBG LLC equal in number to such number of shares of common stock issued by the Company. The acquired shares are to be sold for the benefit of certain of the members of Holdings who elected to redeem a portion of their Holdings membership interests in open market transactions pursuant to one or more Rule 10b5-1 trading plans (collectively, the “Plans”). A portion of the acquired shares was sold during 2018 pursuant to the Plans, in open market transactions. The remaining shares are held for sale under certain conditions, pursuant to the Plans. All sales made pursuant to the Plans are disclosed publicly in accordance with applicable securities laws, rules and regulations through appropriate filings with the SEC, as applicable.

As a consequence of this transaction, IBG, Inc.’s interest in IBG LLC increased to approximately 18.1%, with Holdings owning the remaining 81.9%. The redemptions also resulted in an increase in the Holdings interest held by Mr. Thomas Peterffy and his affiliates from approximately 89.2% to approximately 89.6%.

On October 13, 2015, the Company filed a Post-Effective Amendment to multiple Registration Statements filed under the Securities Act of 1933, as amended (the “Securities Act”) on Form S-8. The Post-Effective Amendment contained a reoffer prospectus that registered 6,400,000 shares of the Company’s Class A common stock representing the Company’s estimate of shares that will be withheld from employees related to the vesting of restricted stock units, under the amended 2007 Stock Incentive Plan (the “SIP Plan”), over the next nine years from the time of the filing, based on the tax rates at that time and historical employee elections. The above shares are being issued by the SIP Plan under the following registration statements: Registration No. 333-142686, filed on May 7, 2007; Registration No. 333-174913, filed on June 15, 2011; and Registration No. 333-203358, filed on April 10, 2015.

The SIP Plan provides employees with two options to pay for their withholding tax obligations, which become due when restricted stock units vest into shares: either (1) reimburse the Company via cash payment, or (2) elect to have the Selling Stockholder withhold a portion of the vesting shares. In the case of employees who elect to have IBG LLC withhold shares to cover their tax obligations, those shares are transferred to IBG LLC, which in turn, sells those shares in open market transactions to recover the amount paid to the tax authorities on the employees’ behalf. For the year ended December 31, 2018 the Company sold 564,141 shares of its Class A common stock withheld from employees (with a fair value of $45 million) in open market transactions. The proceeds were used to reimburse the Company for withholding taxes paid by the Company on the employees’ behalf.

As per General Instruction C of Form S-8, the sale of the shares described above constitutes a resale or reoffer of the Company’s Class A common stock. The Company has re-issued 2,081,152 shares under this reoffer prospectus. The reoffer prospectus allows for future sales by IBG LLC, on a continuous or delayed basis, to the public without restriction.

Securities Authorized for Issuance under Equity Compensation Plans

The following table provides information about shares of common stock available for future awards under all of the Company’s equity compensation plans as of December 31, 2018. The Company has not made grants of common stock outside of its equity compensation plans.