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 | ||||
|---|---|---|---|---|---|---|
| Q1 2015 | $0 | – | 10 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| TCI Wealth Advisors, Inc. | 333 | $3,000 | 0.00% |