Company:  ION GEOPHYSICAL CORP (IO)
Form Type:  10-K
Filing Date:  2/24/2011 
CIK:  0000866609 
Address:  2105 CITYWEST BLVD
SUITE 400 
City, State, Zip:  HOUSTON, Texas 770422839 
Telephone:  281.933.3339 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$6.05   		Change: 
0.00 (0.00%)  
Trade Time: 
04:01 PM EST   		Market Cap: 
$948.95M
Description of Business
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  FORM 10-K
    PART I
      Item 1. Business
      Item 1A. Risk Factors
      Item 1B. Unresolved Staff Comments
      Item 2. Properties
      Item 3. Legal Proceedings
    PART II
      Item 5. Market for Registrant's Common Equity, Related ...
      Item 6. Selected Financial Data
      Item 7. Management's Discussion and Analysis of Financial ...
        Results of Operations
        Liquidity and Capital Resources
      Item 7A. Quantitative and Qualitative Disclosures about ...
      Item 8. Financial Statements and Supplementary Data
      Item 9. Changes in and Disagreements with Accountants on ...
      Item 9A. Controls and Procedures
      Report of Independent Registered Public Accounting Firm
      Item 9B. Other Information
    PART III
      Item 10. Directors, Executive Officers and Corporate Governance
      Item 11. Executive Compensation
      Item 12. Security Ownership of Certain Beneficial Owners ...
      Item 13. Certain Relationships and Related Transactions, ...
      Item 14. Principal Accountant Fees and Services
    PART IV
      Item 15. Exhibits and Financial Statement Schedules
    SIGNATURES
    Report of Independent Registered Public Accounting Firm
    BALANCE SHEET
    INCOME STATEMENT
    CASH FLOW
    STOCKHOLDERS EQUITY
    NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
    VALUATION AND QUALIFYING ACCOUNTS
    EXHIBIT INDEX
  EXHIBIT 21.1
    SUBSIDIARIES
  EXHIBIT 23.1
    Consent of Independent Registered Public Accounting Firm
  EXHIBIT 31.1
    CERTIFICATION OF CHIEF EXECUTIVE OFFICER
  EXHIBIT 31.2
    CERTIFICATION OF CHIEF FINANCIAL OFFICER
  EXHIBIT 32.1
    CERTIFICATION OF CHIEF EXECUTIVE OFFICER
  EXHIBIT 32.2
    CERTIFICATION OF CHIEF FINANCIAL OFFICER
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