ETF PRO AIOctober 27, 2026
IBB iShares Biotechnology ETF
Fund tearsheet · data as of the latest session · October 27, 2026
ONE YEAR OF DAILY CLOSES
0.45%expense ratio
$10.7Bfund assets
+23.7%return, YTD
—return, 1 year
+$150Mnet flow, 1 month
+$1.7Bnet flow, 1 year
22.6%realized volatility, 1y
-9.7%worst drawdown, 1y
Top ten holdings
| 1 | GILD GILEAD SCIENCES | 8.57% |
| 2 | AMGN AMGEN | 8.21% |
| 3 | VRTX VERTEX PHARMACEUTICALS | 7.73% |
| 4 | REGN REGENERON PHARMACEUTICALS | 5.67% |
| 5 | MRNA MODERNA | 5.20% |
| 6 | NTRA NATERA | 3.87% |
| 7 | ARGX ARGENX SE | 3.45% |
| 8 | ILMN ILLUMINA | 2.89% |
| 9 | BIIB BIOGEN | 2.62% |
| 10 | RVMD REVOLUTION MEDICINES | 2.56% |
PREPARED WITH ETF PRO AI · PRIMARY MARKET DATA · INFORMATIONAL ONLY — NOT AN OFFER, RECOMMENDATION, OR INVESTMENT ADVICE · PAST PERFORMANCE DOES NOT GUARANTEE FUTURE RESULTS