ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044207. A total of 81 filers reported holding ION GEOPHYSICAL CORP in Q2 2018. The put-call ratio across all filers is 0.09 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2018 | $1,900,000 | -10.4% | 78,175 | -0.1% | 0.02% | -16.0% |
| Q1 2018 | $2,120,000 | +330.0% | 78,235 | -4.8% | 0.02% | +257.1% |
| Q4 2016 | $493,000 | -12.4% | 82,144 | 0.0% | 0.01% | -22.2% |
| Q3 2016 | $563,000 | +6.8% | 82,144 | -2.8% | 0.01% | 0.0% |
| Q2 2016 | $527,000 | -22.8% | 84,544 | 0.0% | 0.01% | -30.8% |
| Q1 2016 | $683,000 | -18.5% | 84,544 | -94.9% | 0.01% | -27.8% |
| Q4 2015 | $838,000 | – | 1,665,800 | – | 0.02% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Alambic Investment Management, L.P. | 73,913 | $674,000 | 0.51% |
| Gates Capital Management | 539,855 | $4,923,000 | 0.21% |
| Spark Investment Management LLC | 100,000 | $912,000 | 0.12% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 130,216 | $1,188,000 | 0.02% |
| Squarepoint Ops LLC | 98,634 | $900,000 | 0.01% |
| Quantamental Technologies LLC | 2,371 | $22,000 | 0.01% |
| Renaissance Technologies | 901,519 | $8,222,000 | 0.01% |
| ROYCE & ASSOCIATES LP | 71,880 | $656,000 | 0.01% |
| Neuberger Berman Group LLC | 480,187 | $4,377,000 | 0.01% |
| ACADIAN ASSET MANAGEMENT LLC | 106,808 | $974,000 | 0.00% |