State Street SPDR S&P Biotech ETF (XBI)
121.21
-2.45
(-1.98%)
USD |
NYSEARCA |
Dec 09, 16:00
121.01
-0.20
(-0.17%)
After-Hours: 19:57
XBI Alpha (Since Inception)
Alpha (Since Inception) Chart
Sep '18
Jan '19
May '19
285.00
270.00
255.00
240.00
Historical Data
Alpha Definition
Alpha measures the excess return that a security provides. Alpha can be measured by taking Risk Adjusted Security Return - Beta*(Risk Adjusted Market Return). This formula will return the outperformance that the security provides. Alpha is an important metric for active investing, where investors look for outperforming a particular benchmark.
Alpha (Since Inception) Range, Past 5 Years
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Median