WESTLAKE CHEM CORP's ticker is and the CUSIP is 96041310. A total of 3 filers reported holding WESTLAKE CHEM CORP in Q3 2015. The put-call ratio across all filers is 3.20 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2016 | $9,000 | -92.4% | 200 | -91.0% | 0.02% | -94.0% |
| Q4 2015 | $119,000 | -42.5% | 2,211 | -43.4% | 0.36% | -39.7% |
| Q3 2015 | $207,000 | -63.9% | 3,907 | -40.0% | 0.60% | -26.5% |
| Q3 2014 | $573,000 | +126.5% | 6,513 | +114.0% | 0.82% | +2.2% |
| Q2 2014 | $253,000 | +5.4% | 3,043 | -18.8% | 0.80% | +121.5% |
| Q1 2014 | $240,000 | +252.9% | 3,749 | +530.1% | 0.36% | +107.4% |
| Q4 2013 | $68,000 | -18.1% | 595 | -27.3% | 0.18% | +73.3% |
| Q3 2013 | $83,000 | – | 818 | – | 0.10% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| SpiderRock Trading LLC | 1,200 | $74,000 | 0.20% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 396,680 | $24,233,000 | 0.14% |
| ID Management A/S | 1,644 | $100,000 | 0.05% |
| SpiderRock Trading LLC | 1,300 | $7,000 | 0.02% |