ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044108. A total of 118 filers reported holding ION GEOPHYSICAL CORP in Q3 2015. The put-call ratio across all filers is 0.00 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2015 | $2,000 | +100.0% | 3,239 | -19.0% | 0.00% | – |
| Q3 2015 | $1,000 | -75.0% | 3,998 | 0.0% | 0.00% | – |
| Q2 2015 | $4,000 | -55.6% | 3,998 | 0.0% | 0.00% | – |
| Q1 2015 | $9,000 | -18.2% | 3,998 | 0.0% | 0.00% | – |
| Q4 2014 | $11,000 | 0.0% | 3,998 | 0.0% | 0.00% | – |
| Q3 2014 | $11,000 | -35.3% | 3,998 | 0.0% | 0.00% | – |
| Q2 2014 | $17,000 | -5.6% | 3,998 | -8.0% | 0.00% | – |
| Q1 2014 | $18,000 | +20.0% | 4,347 | 0.0% | 0.00% | – |
| Q4 2013 | $15,000 | -34.8% | 4,347 | 0.0% | 0.00% | – |
| Q3 2013 | $23,000 | -8.0% | 4,347 | +7.4% | 0.00% | – |
| Q2 2013 | $25,000 | – | 4,047 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|