WESTERN DIGITAL CORP's ticker is and the CUSIP is 958102955. A total of 4 filers reported holding WESTERN DIGITAL CORP in Q1 2017. The put-call ratio across all filers is - and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2016 | $17,504,000 | +16.2% | 257,600 | 0.0% | 0.22% | +60.0% |
| Q3 2016 | $15,062,000 | -50.9% | 257,600 | -60.3% | 0.14% | -65.8% |
| Q2 2016 | $30,653,000 | +109.0% | 648,600 | +108.9% | 0.41% | +278.7% |
| Q1 2016 | $14,668,000 | -30.2% | 310,500 | -11.3% | 0.11% | -25.5% |
| Q4 2015 | $21,018,000 | – | 350,000 | – | 0.14% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| CMT Capital Markets Trading GmbH | 267,100 | $12,188 | 0.16% |
| CenterStar Asset Management, LLC | 10,400 | $474,552 | 0.10% |
| Capital Markets Trading UK LLP | 59,500 | $2,715 | 0.04% |
| SIMPLEX TRADING, LLC | 521,300 | $23,786 | 0.02% |
| JANE STREET GROUP, LLC | 928,000 | $42,344,640 | 0.01% |
| IMC-Chicago, LLC | 167,500 | $7,643,025 | 0.01% |
| GROUP ONE TRADING, L.P. | 33,600 | $1,533,168 | 0.01% |
| Allianz Asset Management GmbH | 38,200 | $1,743,066 | 0.00% |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |
| Twin Tree Management, LP | 4,500 | $205,335 | 0.00% |