ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044207. A total of 77 filers reported holding ION GEOPHYSICAL CORP in Q1 2018. The put-call ratio across all filers is 0.22 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2018 | $13,000 | +333.3% | 2,455 | +1378.9% | 0.00% | – |
| Q3 2018 | $3,000 | -25.0% | 166 | -1.2% | 0.00% | – |
| Q2 2018 | $4,000 | 0.0% | 168 | +18.3% | 0.00% | – |
| Q1 2018 | $4,000 | +100.0% | 142 | -45.0% | 0.00% | – |
| Q3 2017 | $2,000 | 0.0% | 258 | -39.6% | 0.00% | – |
| Q2 2017 | $2,000 | 0.0% | 427 | 0.0% | 0.00% | – |
| Q1 2017 | $2,000 | -50.0% | 427 | -41.4% | 0.00% | – |
| Q4 2016 | $4,000 | +300.0% | 729 | +296.2% | 0.00% | – |
| Q2 2016 | $1,000 | 0.0% | 184 | +23.5% | 0.00% | – |
| Q1 2016 | $1,000 | – | 149 | – | 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% |