ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044207. A total of 55 filers reported holding ION GEOPHYSICAL CORP in Q4 2017. The put-call ratio across all filers is 0.17 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2021 | $0 | -100.0% | 360 | -73.5% | 0.00% | – |
| Q3 2021 | $1,000 | -90.0% | 1,360 | -74.1% | 0.00% | – |
| Q2 2021 | $10,000 | -81.5% | 5,260 | -79.7% | 0.00% | – |
| Q1 2021 | $54,000 | -86.8% | 25,960 | -39.6% | 0.00% | -100.0% |
| Q3 2017 | $408,000 | +177.6% | 43,000 | +26.5% | 0.01% | +150.0% |
| Q2 2017 | $147,000 | +600.0% | 34,000 | +672.7% | 0.00% | – |
| Q1 2017 | $21,000 | -76.1% | 4,400 | -70.1% | 0.00% | -100.0% |
| Q4 2016 | $88,000 | +6.0% | 14,700 | +20.5% | 0.00% | 0.0% |
| Q3 2016 | $83,000 | -72.0% | 12,200 | -74.3% | 0.00% | -75.0% |
| Q2 2016 | $296,000 | – | 47,500 | – | 0.00% | – |
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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% |