OM GROUP INC's ticker is and the CUSIP is 670872900. A total of 3 filers reported holding OM GROUP INC in Q2 2015. The put-call ratio across all filers is - and the average weighting 0.0%.
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| GROUP ONE TRADING, L.P. | 6,700 | $225,000 | 0.00% |
| Citadel Advisors | 10,100 | $339,000 | 0.00% |
| SIMPLEX TRADING, LLC | 34 | $4,000 | 0.00% |