SPDR SER TR's ticker is XBI and the CUSIP is 78464A870. A total of 423 filers reported holding SPDR SER TR in Q4 2017. The put-call ratio across all filers is 3.55 and the average weighting 0.6%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2019 | $7,625,000 | -37.9% | 100,000 | -28.6% | 1.51% | -30.1% |
| Q2 2019 | $12,279,000 | +183.6% | 140,000 | +180.0% | 2.16% | +56.4% |
| Q3 2017 | $4,329,000 | -59.9% | 50,000 | -64.3% | 1.38% | -61.2% |
| Q2 2017 | $10,805,000 | +8829.8% | 140,000 | +100.0% | 3.56% | +4242.7% |
| Q1 2017 | $121,000 | -89.4% | 70,000 | -86.0% | 0.08% | -87.3% |
| Q4 2016 | $1,140,000 | – | 500,000 | – | 0.65% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| QCM Cayman, Ltd. | 2,906 | $225,000 | 38.53% |
| Aquilo Capital Management, LLC | 1,000,000 | $77,440,000 | 30.18% |
| Ghost Tree Capital, LLC | 737,500 | $57,112,000 | 15.15% |
| MASTERS CAPITAL MANAGEMENT LLC | 1,500,000 | $116,160,000 | 13.48% |
| CUMBERLAND ADVISORS INC | 207,509 | $16,069,000 | 6.55% |
| PURA VIDA INVESTMENTS, LLC | 620,000 | $48,013,000 | 5.70% |
| Atika Capital Management LLC | 355,000 | $27,491,000 | 5.27% |
| SPHERA FUNDS MANAGEMENT LTD. | 500,000 | $38,720,000 | 4.84% |
| Main Management ETF Advisors, LLC | 200,750 | $15,546,000 | 3.72% |
| McGuire Investment Group, LLC | 114,656 | $8,879,000 | 3.69% |