ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044207. A total of 77 filers reported holding ION GEOPHYSICAL CORP in Q1 2018. The put-call ratio across all filers is 0.22 and the average weighting 0.0%.
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Gates Capital Management | 2,672,096 | $2,330,000 | 0.07% |
| Virtu Financial LLC | 13,923 | $12,000 | 0.00% |
| Your Advocates Ltd., LLP | 1,000 | $1,000 | 0.00% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 57,400 | $50,000 | 0.00% |
| GOLDMAN SACHS GROUP INC | 23,337 | $20,000 | 0.00% |
| MORGAN STANLEY | 9,450 | $8,000 | 0.00% |
| NATIONAL BANK OF CANADA /FI/ | 1,380 | $1,000 | 0.00% |
| WOLVERINE TRADING, LLC | 25,100 | $24,000 | 0.00% |
| BlackRock Inc. | 203,401 | $178,000 | 0.00% |
| Bank of New York Mellon Corp | 91,992 | $80,000 | 0.00% |