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 | ||||
|---|---|---|---|---|---|---|
| Q2 2015 | $35,000 | -86.4% | 32,550 | -72.6% | 0.00% | -87.1% |
| Q1 2015 | $258,000 | -20.9% | 118,700 | 0.0% | 0.03% | -20.5% |
| Q4 2014 | $326,000 | -1.5% | 118,700 | 0.0% | 0.04% | -4.9% |
| Q3 2014 | $331,000 | -33.9% | 118,700 | 0.0% | 0.04% | -32.8% |
| Q2 2014 | $501,000 | +0.2% | 118,700 | 0.0% | 0.06% | -1.6% |
| Q1 2014 | $500,000 | +27.6% | 118,700 | 0.0% | 0.06% | +47.6% |
| Q4 2013 | $392,000 | – | 118,700 | – | 0.04% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|