ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044207. A total of 74 filers reported holding ION GEOPHYSICAL CORP in Q1 2019. The put-call ratio across all filers is 0.03 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2018 | $13,000 | +333.3% | 2,455 | +1378.9% | 0.00% | – |
| Q3 2018 | $3,000 | -25.0% | 166 | -1.2% | 0.00% | – |
| Q2 2018 | $4,000 | 0.0% | 168 | +18.3% | 0.00% | – |
| Q1 2018 | $4,000 | +100.0% | 142 | -45.0% | 0.00% | – |
| Q3 2017 | $2,000 | 0.0% | 258 | -39.6% | 0.00% | – |
| Q2 2017 | $2,000 | 0.0% | 427 | 0.0% | 0.00% | – |
| Q1 2017 | $2,000 | -50.0% | 427 | -41.4% | 0.00% | – |
| Q4 2016 | $4,000 | +300.0% | 729 | +296.2% | 0.00% | – |
| Q2 2016 | $1,000 | 0.0% | 184 | +23.5% | 0.00% | – |
| Q1 2016 | $1,000 | – | 149 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Gates Capital Management | 1,212,408 | $6,280,000 | 0.35% |
| New Jersey Better Educational Savings Trust | 22,000 | $114,000 | 0.15% |
| NJ State Employees Deferred Compensation Plan | 48,000 | $249,000 | 0.05% |
| Spark Investment Management LLC | 79,800 | $413,000 | 0.03% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 177,305 | $918,000 | 0.01% |
| Engineers Gate Manager LP | 16,334 | $85,000 | 0.01% |
| Renaissance Technologies | 1,026,523 | $5,317,000 | 0.01% |
| A.R.T. Advisors, LLC | 17,445 | $90,000 | 0.01% |
| Point72 Hong Kong Ltd | 1,893 | $10,000 | 0.01% |
| PDT Partners, LLC | 16,300 | $84,000 | 0.01% |