ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044207. A total of 37 filers reported holding ION GEOPHYSICAL CORP in Q3 2021. The put-call ratio across all filers is 0.11 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2022 | $12,000 | -81.0% | 13,923 | -80.7% | 0.00% | -83.3% |
| Q4 2021 | $63,000 | +6.8% | 72,158 | +63.8% | 0.01% | +20.0% |
| Q3 2021 | $59,000 | +55.3% | 44,041 | +147.3% | 0.01% | +66.7% |
| Q1 2021 | $38,000 | +15.2% | 17,811 | +27.9% | 0.00% | -25.0% |
| Q2 2020 | $33,000 | -64.1% | 13,923 | +21.5% | 0.00% | -20.0% |
| Q2 2019 | $92,000 | -8.9% | 11,460 | +7.5% | 0.01% | 0.0% |
| Q3 2017 | $101,000 | – | 10,662 | – | 0.01% | – |
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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% |