OM GROUP INC's ticker is and the CUSIP is 67087210. A total of 2 filers reported holding OM GROUP INC in Q3 2013. The put-call ratio across all filers is - and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2013 | $81,000 | – | 2,631 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| SpiderRock Trading LLC | 700 | $23,000 | 0.14% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 29,283 | $989,000 | 0.01% |