IBB

iShares Biotechnology ETF

BlackRock · Biotechnology

228

Rows in current dataset

99.4%

high confidence

2025-12-16

Retrieved 2025-12-16

2026-10-07

Adjusted-close observation

YTD

+20.60%

1 year

+35.40%

3Y annualized

+18.67%

5Y annualized

+5.68%

Volatility

+23.21%

Max drawdown

-39.81%

Adjusted-close observations. Historical period is limited to available common dates.

Largest reported holdings

SymbolNameReported weight
VRTXVRTX7.36%
AMGNAMGN7.27%
GILDGILD6.99%
REGNREGN6.07%
ALNYALNY4.56%
INSMINSM3.43%
ARGXARGX3.28%
IQVIQV3.18%
NTRANTRA2.67%
MTDMTD2.39%
BIIBBIIB2.23%
WATWAT1.97%
UTHRUTHR1.77%
ONCONC1.72%
ILMNILMN1.61%
INCYINCY1.58%
NBIXNBIX1.26%
GMABGMAB1.22%
RVMDRVMD1.10%
IONSIONS1.09%

Classified reported exposure

21.6% of fund weight maps to the current sector dictionary.

Unclassified77.8%
Healthcare21.6%

Risk calculation details

Sharpe ratio
0.18
Sortino ratio
0.17
Beta vs SPY
0.89
CAPM alpha
-5.81%

Calculated from date-aligned daily adjusted-close returns with a 4% annual risk-free assumption. Descriptive, not predictive.