IBB
iShares Biotechnology ETFETF · Themes$188.14−$0.84 (-0.44%)as of market close, Jul 24, 2026
IBB monthly returns
iShares Biotechnology ETF has averaged 0.81% per month, positive in 56% of months. Month-by-month returns for iShares Biotechnology ETF (IBB) below, through July 24, 2026 — the table lists the most recent months; the bar chart plots the last 5 years.
Average month
+0.8%
295 months
Best month
+18.8%
May 2003
Worst month
-21.1%
Jan 2016
Positive months
56%
of all months
iShares Biotechnology ETF monthly returns#
| Month | Path | Total return |
|---|---|---|
| Jul 2026 | -1.5% | |
| Jun 2026 | +11.0% | |
| May 2026 | +2.1% | |
| Apr 2026 | -0.1% | |
| Mar 2026 | -3.6% | |
| Feb 2026 | +1.7% | |
| Jan 2026 | +2.2% | |
| Dec 2025 | -2.8% | |
| Nov 2025 | +9.1% | |
| Oct 2025 | +10.4% | |
| Sep 2025 | +4.5% | |
| Aug 2025 | +4.1% |
Monthly total return (since Aug 2021)
-10%-5%+0%+5%+10%
20222023202420252026
Methodology#
Monthly returns are total returns (dividends reinvested), computed from IBB's split- and dividend-adjusted month-end closes. The table shows the most recent 120 months and the bar chart the most recent 60. See the year-by-year returns for the annual view. Past performance does not predict future returns; not investment advice.
See also: S&P 500 · Nasdaq-100 · Dow Jones · Russell 2000 · US Bond Market · Gold · Silver · Bitcoin · Ethereum
FAQ
- What is iShares Biotechnology ETF's average monthly return?
- iShares Biotechnology ETF (IBB) has averaged about 0.81% per month, positive in roughly 56% of months. The best month was May 2003 (+18.8%) and the worst was Jan 2016 (-21.1%).