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Regulatory Requirements | 12 Months Ended
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Dec. 31, 2018
Regulatory Requirements [Abstract] |
Regulatory Requirements | ﻿ 15. Regulatory Requirements As of December 31, 2018, aggregate excess regulatory capital for all of the Operating Companies was $5.8 billion. IB LLC, TH LLC and IB Corp are subject to the Uniform Net Capital Rule (Rule 15c3‑1) under the Exchange Act, IB LLC is also subject to the Commodities and Futures Trading Commission’s minimum financial requirements (Regulation 1.17), and IBKRFS is subject to the Swiss Financial Market Supervisory Authority eligible equity requirement. IBA is subject to the Australian Securities Exchange liquid capital requirement, THC and IBC are subject to the Investment Industry Regulatory Organization of Canada risk adjusted capital requirement, IBUK is subject to the U.K. Financial Conduct Authority Capital Requirements Directive, IBHK is subject to the Hong Kong Securities Futures Commission liquid capital requirement, IBI is subject to the National Stock Exchange of India net capital requirements and IBSJ is subject to the Japanese Financial Supervisory Agency capital requirements. The following table summarizes capital, capital requirements and excess regulatory capital: ﻿
﻿ |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  | Net Capital/ |  |  |  |  |  |
﻿ |  | Eligible Equity |  | Requirement |  | Excess
﻿ |  |  |  |  |  |  |  |  |
﻿ |  | (in millions)
﻿IB LLC |  | $ | 4,882 |  | $ | 416 |  | $ | 4,466
﻿TH LLC |  |  | 159 |  |  | - |  |  | 159
﻿IBKRFS |  |  | 584 |  |  | 93 |  |  | 491
﻿Other regulated Operating Companies |  |  | 810 |  |  | 116 |  |  | 694
﻿ |  | $ | 6,435 |  | $ | 625 |  | $ | 5,810
﻿ Regulatory capital requirements could restrict the Operating Companies from expanding their business and declaring dividends if their net capital does not meet regulatory requirements. Also, certain Operating Companies are subject to other regulatory restrictions and requirements. As of December 31, 2018, all of the regulated Operating Companies were in compliance with their respective regulatory capital requirements.

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- Definition The entire disclosure of the regulatory capital requirements imposed on the entity's Operating Companies. + References No definition available. + Details
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