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 | ||||
|---|---|---|---|---|---|---|
| Q4 2021 | $57,000 | -39.4% | 64,534 | -9.2% | 0.00% | -33.3% |
| Q3 2021 | $94,000 | -30.4% | 71,034 | +10.1% | 0.00% | 0.0% |
| Q2 2021 | $135,000 | +864.3% | 64,534 | +887.8% | 0.00% | – |
| Q1 2021 | $14,000 | -12.5% | 6,533 | -2.2% | 0.00% | – |
| Q4 2020 | $16,000 | +60.0% | 6,683 | 0.0% | 0.00% | – |
| Q3 2020 | $10,000 | -37.5% | 6,683 | 0.0% | 0.00% | – |
| Q2 2020 | $16,000 | +100.0% | 6,683 | 0.0% | 0.00% | – |
| Q1 2020 | $8,000 | -86.2% | 6,683 | 0.0% | 0.00% | -100.0% |
| Q4 2019 | $58,000 | -4.9% | 6,683 | 0.0% | 0.00% | 0.0% |
| Q3 2019 | $61,000 | +13.0% | 6,683 | 0.0% | 0.00% | 0.0% |
| Q2 2019 | $54,000 | -44.3% | 6,683 | 0.0% | 0.00% | -50.0% |
| Q1 2019 | $97,000 | +177.1% | 6,683 | 0.0% | 0.00% | +100.0% |
| Q4 2018 | $35,000 | -66.3% | 6,683 | 0.0% | 0.00% | -50.0% |
| Q3 2018 | $104,000 | -35.8% | 6,683 | 0.0% | 0.00% | -50.0% |
| Q2 2018 | $162,000 | -10.5% | 6,683 | 0.0% | 0.00% | 0.0% |
| Q1 2018 | $181,000 | -35.8% | 6,683 | -53.2% | 0.00% | -33.3% |
| Q4 2017 | $282,000 | +107.4% | 14,266 | 0.0% | 0.01% | +100.0% |
| Q3 2017 | $136,000 | +119.4% | 14,266 | 0.0% | 0.00% | +200.0% |
| Q2 2017 | $62,000 | -10.1% | 14,266 | 0.0% | 0.00% | -50.0% |
| Q1 2017 | $69,000 | -62.1% | 14,266 | -53.1% | 0.00% | -50.0% |
| Q4 2016 | $182,000 | -12.5% | 30,400 | 0.0% | 0.00% | -20.0% |
| Q3 2016 | $208,000 | +10.1% | 30,400 | 0.0% | 0.01% | +25.0% |
| Q2 2016 | $189,000 | – | 30,400 | – | 0.00% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Gates Capital Management | 1,024,835 | $14,799,000 | 0.66% |
| Alambic Investment Management, L.P. | 21,128 | $305,000 | 0.12% |
| Spark Investment Management LLC | 110,687 | $1,598,000 | 0.07% |
| NJ State Employees Deferred Compensation Plan | 20,000 | $289,000 | 0.05% |
| ELLINGTON MANAGEMENT GROUP LLC | 11,500 | $166,000 | 0.03% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 130,216 | $1,880,000 | 0.02% |
| Jefferies Group LLC | 176,800 | $2,553,000 | 0.02% |
| Engineers Gate Manager LP | 24,551 | $355,000 | 0.02% |
| PDT Partners, LLC | 14,743 | $213,000 | 0.01% |
| ROYCE & ASSOCIATES LP | 71,880 | $1,038,000 | 0.01% |