ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044108. A total of 83 filers reported holding ION GEOPHYSICAL CORP in Q4 2015. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2015 | $2,000 | +100.0% | 3,928 | 0.0% | 0.00% | – |
| Q3 2015 | $1,000 | -75.0% | 3,928 | 0.0% | 0.00% | – |
| Q2 2015 | $4,000 | -66.7% | 3,928 | -29.6% | 0.00% | – |
| Q1 2015 | $12,000 | -40.0% | 5,578 | -21.2% | 0.00% | – |
| Q4 2014 | $20,000 | +185.7% | 7,078 | +183.1% | 0.00% | – |
| Q3 2014 | $7,000 | -36.4% | 2,500 | 0.0% | 0.00% | – |
| Q2 2014 | $11,000 | 0.0% | 2,500 | 0.0% | 0.00% | – |
| Q1 2014 | $11,000 | +10.0% | 2,500 | -16.1% | 0.00% | – |
| Q4 2013 | $10,000 | +25.0% | 2,980 | +101.4% | 0.00% | – |
| Q3 2013 | $8,000 | -66.7% | 1,480 | -63.3% | 0.00% | -100.0% |
| Q2 2013 | $24,000 | – | 4,036 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|