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 | $7,000 | +133.3% | 8,254 | +173.1% | 0.00% | – |
| Q4 2021 | $3,000 | +50.0% | 3,022 | +91.9% | 0.00% | – |
| Q3 2021 | $2,000 | -90.5% | 1,575 | -84.0% | 0.00% | – |
| Q1 2021 | $21,000 | +162.5% | 9,833 | +197.6% | 0.00% | – |
| Q4 2020 | $8,000 | +33.3% | 3,304 | -18.5% | 0.00% | – |
| Q3 2020 | $6,000 | -50.0% | 4,053 | +198.9% | 0.00% | -100.0% |
| Q4 2019 | $12,000 | -7.7% | 1,356 | -17.9% | 0.00% | 0.0% |
| Q2 2019 | $13,000 | -35.0% | 1,651 | -56.7% | 0.00% | 0.0% |
| Q4 2018 | $20,000 | +900.0% | 3,817 | +2665.9% | 0.00% | – |
| Q3 2018 | $2,000 | -83.3% | 138 | -78.2% | 0.00% | -100.0% |
| Q4 2017 | $12,000 | +71.4% | 632 | -62.6% | 0.00% | +100.0% |
| Q2 2017 | $7,000 | +600.0% | 1,688 | +744.0% | 0.00% | – |
| Q1 2017 | $1,000 | -90.9% | 200 | -87.1% | 0.00% | -100.0% |
| Q3 2016 | $11,000 | – | 1,550 | +4597.0% | 0.00% | – |
| Q2 2016 | $0 | -100.0% | 33 | -95.7% | 0.00% | -100.0% |
| Q1 2016 | $6,000 | – | 773 | – | 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% |