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 | ||||
|---|---|---|---|---|---|---|
| Q1 2021 | $1,000 | -99.5% | 463 | -99.4% | 0.00% | -100.0% |
| Q4 2020 | $193,000 | -34.4% | 79,526 | -59.4% | 0.00% | 0.0% |
| Q3 2020 | $294,000 | -35.5% | 195,799 | +0.5% | 0.00% | -50.0% |
| Q2 2020 | $456,000 | +103.6% | 194,798 | +10.4% | 0.00% | +100.0% |
| Q1 2020 | $224,000 | -85.1% | 176,401 | +2.0% | 0.00% | -85.7% |
| Q4 2019 | $1,500,000 | +54.0% | 172,906 | +61.9% | 0.01% | +75.0% |
| Q3 2019 | $974,000 | +90.2% | 106,808 | +68.0% | 0.00% | +100.0% |
| Q2 2019 | $512,000 | +326.7% | 63,595 | +666.9% | 0.00% | +100.0% |
| Q1 2019 | $120,000 | +71.4% | 8,293 | +84.6% | 0.00% | – |
| Q3 2018 | $70,000 | -97.2% | 4,493 | -95.6% | 0.00% | -100.0% |
| Q2 2018 | $2,487,000 | -39.3% | 102,350 | -32.3% | 0.01% | -38.9% |
| Q1 2018 | $4,098,000 | +237.0% | 151,202 | +145.4% | 0.02% | +260.0% |
| Q4 2017 | $1,216,000 | +442.9% | 61,611 | +161.2% | 0.01% | +400.0% |
| Q3 2017 | $224,000 | +1500.0% | 23,592 | +881.4% | 0.00% | – |
| Q4 2016 | $14,000 | – | 2,404 | – | 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% |