IBB Holdings: iShares Biotechnology Top Holdings
NASDAQ: IBBiSharesHealthETFUSD
206.49+6.01 (+3.00%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
IBB portfolio concentration
The iShares Biotechnology ETF (IBB) reports 10 holdings. Its biggest position is Gilead Sciences Inc (GILD) at 8.08% of assets. The top 10 holdings account for 49.3% of the portfolio, a moderately concentrated portfolio.
10 positions carry a weight of 1% or more. Based on the weights listed, IBB behaves like an equal-weighted fund of about 35 stocks (the inverse Herfindahl index), a measure of how diversified it really is. Holdings and weights change over time as the fund rebalances and as share prices move.
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Summary generated from market data by MetaCap's automated system. Methodology
IBB holdings by weight
| # | Holding | Weight |
|---|---|---|
| 1 | GILDGilead Sciences Inc | 8.08% |
| 2 | AMGNAmgen Inc | 7.78% |
| 3 | VRTXVertex Pharmaceuticals Inc | 7.62% |
| 4 | REGNRegeneron Pharmaceuticals Inc | 5.28% |
| 5 | MRNAModerna Inc | 4.94% |
| 6 | NTRANatera Inc | 3.91% |
| 7 | ARGXargenx SE ADR | 3.74% |
| 8 | ILMNIllumina Inc | 2.89% |
| 9 | RVMDRevolution Medicines Inc Ordinary Shares | 2.78% |
| 10 | BIIBBiogen Inc | 2.33% |