ETF PRO AIOctober 4, 2026
IBB iShares Biotechnology ETF
Fund tearsheet · data as of the latest session · October 4, 2026
ONE YEAR OF DAILY CLOSES
0.45%expense ratio
$10.9Bfund assets
+21.6%return, YTD
+36.0%return, 1 year
+$272Mnet flow, 1 month
+$1.8Bnet flow, 1 year
21.8%realized volatility, 1y
-9.7%worst drawdown, 1y
Top ten holdings
| 1 | GILD GILEAD SCIENCES | 8.18% |
| 2 | AMGN AMGEN | 7.68% |
| 3 | VRTX VERTEX PHARMACEUTICALS | 7.55% |
| 4 | REGN REGENERON PHARMACEUTICALS | 5.23% |
| 5 | MRNA MODERNA | 4.95% |
| 6 | NTRA NATERA | 3.95% |
| 7 | ARGX ARGENX SE | 3.73% |
| 8 | ILMN ILLUMINA | 2.87% |
| 9 | RVMD REVOLUTION MEDICINES | 2.85% |
| 10 | BIIB BIOGEN | 2.34% |
PREPARED WITH ETF PRO AI · PRIMARY MARKET DATA · INFORMATIONAL ONLY — NOT AN OFFER, RECOMMENDATION, OR INVESTMENT ADVICE · PAST PERFORMANCE DOES NOT GUARANTEE FUTURE RESULTS