ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044207. A total of 44 filers reported holding ION GEOPHYSICAL CORP in Q1 2021. The put-call ratio across all filers is 0.79 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2022 | $69,000 | +187.5% | 78,597 | +187.6% | 0.00% | – |
| Q4 2021 | $24,000 | -52.9% | 27,328 | -28.4% | 0.00% | – |
| Q3 2021 | $51,000 | -69.8% | 38,149 | -53.0% | 0.00% | – |
| Q2 2021 | $169,000 | -50.0% | 81,082 | -48.7% | 0.00% | – |
| Q1 2021 | $338,000 | +322.5% | 158,005 | +378.8% | 0.00% | – |
| Q4 2020 | $80,000 | +122.2% | 33,000 | +39.1% | 0.00% | – |
| Q3 2020 | $36,000 | -50.0% | 23,722 | -22.9% | 0.00% | – |
| Q2 2020 | $72,000 | -76.1% | 30,763 | -11.3% | 0.00% | – |
| Q4 2019 | $301,000 | -21.2% | 34,682 | -17.2% | 0.00% | -100.0% |
| Q3 2019 | $382,000 | -58.4% | 41,903 | -63.3% | 0.00% | 0.0% |
| Q2 2019 | $919,000 | +596.2% | 114,192 | +349.8% | 0.00% | – |
| Q4 2018 | $132,000 | -98.4% | 25,388 | -91.8% | 0.00% | -100.0% |
| Q1 2018 | $8,380,000 | +937.1% | 309,236 | +656.2% | 0.01% | +1000.0% |
| Q4 2017 | $808,000 | +308.1% | 40,894 | +24.1% | 0.00% | – |
| Q4 2016 | $198,000 | -22.4% | 32,947 | -11.4% | 0.00% | – |
| Q3 2016 | $255,000 | +23.2% | 37,168 | +11.9% | 0.00% | – |
| Q2 2016 | $207,000 | – | 33,210 | – | 0.00% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Alambic Investment Management, L.P. | 73,913 | $674,000 | 0.51% |
| Gates Capital Management | 539,855 | $4,923,000 | 0.21% |
| Spark Investment Management LLC | 100,000 | $912,000 | 0.12% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 130,216 | $1,188,000 | 0.02% |
| Squarepoint Ops LLC | 98,634 | $900,000 | 0.01% |
| Quantamental Technologies LLC | 2,371 | $22,000 | 0.01% |
| Renaissance Technologies | 901,519 | $8,222,000 | 0.01% |
| ROYCE & ASSOCIATES LP | 71,880 | $656,000 | 0.01% |
| Neuberger Berman Group LLC | 480,187 | $4,377,000 | 0.01% |
| ACADIAN ASSET MANAGEMENT LLC | 106,808 | $974,000 | 0.00% |