ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044108. A total of 136 filers reported holding ION GEOPHYSICAL CORP in Q1 2015. The put-call ratio across all filers is 17.33 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2015 | $5,000 | +25.0% | 10,021 | 0.0% | 0.00% | – |
| Q3 2015 | $4,000 | -63.6% | 10,021 | 0.0% | 0.00% | – |
| Q2 2015 | $11,000 | -50.0% | 10,021 | 0.0% | 0.00% | – |
| Q1 2015 | $22,000 | -21.4% | 10,021 | 0.0% | 0.00% | – |
| Q4 2014 | $28,000 | -3.4% | 10,021 | -3.9% | 0.00% | – |
| Q3 2014 | $29,000 | -34.1% | 10,423 | 0.0% | 0.00% | – |
| Q2 2014 | $44,000 | -6.4% | 10,423 | -6.1% | 0.00% | – |
| Q1 2014 | $47,000 | +27.0% | 11,098 | 0.0% | 0.00% | – |
| Q4 2013 | $37,000 | -33.9% | 11,098 | +2.8% | 0.00% | – |
| Q3 2013 | $56,000 | -9.7% | 10,800 | +5.1% | 0.00% | – |
| Q2 2013 | $62,000 | – | 10,280 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|