ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044207. A total of 37 filers reported holding ION GEOPHYSICAL CORP in Q4 2020. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2021 | $33,000 | -47.6% | 37,170 | -21.7% | 0.00% | – |
| Q3 2021 | $63,000 | -66.8% | 47,495 | -47.8% | 0.00% | -100.0% |
| Q2 2021 | $190,000 | -11.2% | 90,914 | -9.2% | 0.00% | 0.0% |
| Q1 2021 | $214,000 | +229.2% | 100,104 | +274.7% | 0.00% | – |
| Q4 2020 | $65,000 | -45.4% | 26,717 | -66.3% | 0.00% | -100.0% |
| Q3 2020 | $119,000 | +112.5% | 79,391 | +232.8% | 0.00% | +100.0% |
| Q2 2020 | $56,000 | -94.3% | 23,855 | -79.0% | 0.00% | -83.3% |
| Q4 2019 | $985,000 | +9.4% | 113,450 | +15.0% | 0.01% | -25.0% |
| Q3 2019 | $900,000 | +57.6% | 98,634 | +39.1% | 0.01% | +33.3% |
| Q2 2019 | $571,000 | +727.5% | 70,925 | +539.0% | 0.01% | +50.0% |
| Q2 2016 | $69,000 | – | 11,100 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| GSA CAPITAL PARTNERS LLP | 54,182 | $132,000 | 0.02% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 77,400 | $188,000 | 0.00% |
| Renaissance Technologies | 1,004,267 | $2,440,000 | 0.00% |
| SeaCrest Wealth Management, LLC | 10,000 | $24,000 | 0.00% |
| FARMERS & MERCHANTS INVESTMENTS INC | 20,763 | $50,000 | 0.00% |
| Neuberger Berman Group LLC | 284,018 | $690,000 | 0.00% |
| ACADIAN ASSET MANAGEMENT LLC | 79,526 | $193,000 | 0.00% |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC | 17,876 | $43,000 | 0.00% |
| DEUTSCHE BANK AG\ | 300,000 | $729,000 | 0.00% |
| MORGAN STANLEY | 747 | $2,000 | 0.00% |