ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044207. A total of 44 filers reported holding ION GEOPHYSICAL CORP in Q2 2021. The put-call ratio across all filers is 0.09 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2021 | $2,000 | 0.0% | 636 | -9.8% | 0.00% | – |
| Q1 2021 | $2,000 | 0.0% | 705 | -12.1% | 0.00% | – |
| Q4 2020 | $2,000 | +100.0% | 802 | -26.6% | 0.00% | – |
| Q3 2020 | $1,000 | -80.0% | 1,092 | -46.3% | 0.00% | – |
| Q2 2020 | $5,000 | +400.0% | 2,033 | +50.3% | 0.00% | – |
| Q1 2020 | $1,000 | -75.0% | 1,353 | +189.1% | 0.00% | – |
| Q4 2019 | $4,000 | +33.3% | 468 | +15.0% | 0.00% | – |
| Q3 2019 | $3,000 | 0.0% | 407 | +5.4% | 0.00% | – |
| Q2 2019 | $3,000 | -40.0% | 386 | +5.2% | 0.00% | – |
| Q1 2019 | $5,000 | +150.0% | 367 | +10.2% | 0.00% | – |
| Q4 2018 | $2,000 | -71.4% | 333 | -25.5% | 0.00% | – |
| Q3 2018 | $7,000 | -12.5% | 447 | +34.2% | 0.00% | – |
| Q2 2018 | $8,000 | -11.1% | 333 | 0.0% | 0.00% | – |
| Q1 2018 | $9,000 | +28.6% | 333 | 0.0% | 0.00% | – |
| Q4 2017 | $7,000 | +133.3% | 333 | 0.0% | 0.00% | – |
| Q3 2017 | $3,000 | – | 333 | +2461.5% | 0.00% | – |
| Q2 2017 | $0 | – | 13 | – | 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% |