ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044207. A total of 51 filers reported holding ION GEOPHYSICAL CORP in Q1 2017. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2019 | $1,000 | 0.0% | 79 | +19.7% | 0.00% | – |
| Q3 2019 | $1,000 | – | 66 | -48.4% | 0.00% | – |
| Q2 2019 | $0 | -100.0% | 128 | -5.2% | 0.00% | – |
| Q1 2019 | $2,000 | – | 135 | +6.3% | 0.00% | – |
| Q4 2018 | $0 | -100.0% | 127 | -3.8% | 0.00% | – |
| Q3 2018 | $2,000 | -71.4% | 132 | -50.9% | 0.00% | – |
| Q2 2018 | $7,000 | 0.0% | 269 | 0.0% | 0.00% | – |
| Q1 2018 | $7,000 | +40.0% | 269 | 0.0% | 0.00% | – |
| Q4 2017 | $5,000 | +66.7% | 269 | 0.0% | 0.00% | – |
| Q3 2017 | $3,000 | +200.0% | 269 | 0.0% | 0.00% | – |
| Q2 2017 | $1,000 | 0.0% | 269 | +3.1% | 0.00% | – |
| Q1 2017 | $1,000 | 0.0% | 261 | 0.0% | 0.00% | – |
| Q4 2016 | $1,000 | 0.0% | 261 | 0.0% | 0.00% | – |
| Q3 2016 | $1,000 | 0.0% | 261 | 0.0% | 0.00% | – |
| Q2 2016 | $1,000 | -66.7% | 261 | -3.0% | 0.00% | – |
| Q1 2016 | $3,000 | – | 269 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Gates Capital Management | 582,946 | $2,827,000 | 0.10% |
| ALGERT GLOBAL LLC | 42,959 | $208,000 | 0.06% |
| Spark Investment Management LLC | 64,678 | $313,000 | 0.02% |
| IMPAX ASSET MANAGEMENT LLC | 50,000 | $243,000 | 0.01% |
| A.R.T. Advisors, LLC | 41,680 | $202,000 | 0.01% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 155,724 | $755,000 | 0.01% |
| Alambic Investment Management, L.P. | 13,900 | $67,000 | 0.01% |
| OXFORD ASSET MANAGEMENT LLP | 49,379 | $239,000 | 0.01% |
| Connor, Clark & Lunn Investment Management Ltd. | 83,021 | $403,000 | 0.00% |
| ROYCE & ASSOCIATES LP | 71,880 | $349,000 | 0.00% |