iShares Biotechnology ETF(IBB · ETF)

ETF quote, holdings, sector allocation, technicals, and options analytics.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.

IBB $188.98
Snapshot
$188.98
52-Week Range
$130.25 – $199.05
YTD
+11.82%
IV Rank (30D)
6.24
Straddle Price
$9.20
P/C Vol Ratio
0.77
Info

iShares Biotechnology ETF (IBB) ETF

Exchange
XNAS
Inception
2001-02-05
Has Options
Yes
ETF Profile
holdings as of 2026-07-22
Holdings
252
AUM
$9.4B
Provider
iShares (BlackRock)
Inception
2001-02-05
Exchange
XNAS
Data As Of
2026-07-22
Expense Ratio
Dividend Yield
0.22%
Distribution
Quarterly
Recent distributions
Ex-Date Pay Date Amount Type
2026-06-15 2026-06-18 $0.0238 CD
2026-03-17 2026-03-20 $0.1218 CD
2025-12-16 2025-12-19 $0.1831 CD
2025-09-16 2025-09-19 $0.0828 CD
2025-03-18 2025-03-21 $0.1212 CD
2024-12-17 2024-12-20 $0.0624 CD
Asset Allocation
Top Holdings
top 50 of 252 holdings
Symbol Name Weight % Asset Class Country
AMGN AMGEN INC 8.07% Equity (US) United States
VRTX VERTEX PHARMACEUTICALS INC 7.84% Equity (US) United States
GILD GILEAD SCIENCES INC 7.20% Equity (US) United States
REGN REGENERON PHARMACEUTICALS INC 5.23% Equity (US) United States
ARGX ARGENX SE ADR 3.52% Equity (Foreign) Belgium
NTRA NATERA INC 2.87% Equity (US) United States
ALNY ALNYLAM PHARMACEUTICALS INC 2.82% Equity (US) United States
RVMD REVOLUTION MEDICINES INC 2.77% Equity (US) United States
BIIB BIOGEN INC 2.30% Equity (US) United States
ILMN ILLUMINA INC 2.29% Equity (US) United States
ONC BEONE MEDICINES AG 2.03% Equity (Foreign) China
INCY INCYTE CORP 1.82% Equity (US) United States
INSM INSMED INC 1.82% Equity (US) United States
UTHR UNITED THERAPEUTICS CORP 1.72% Equity (US) United States
MRNA MODERNA INC 1.68% Equity (US) United States
ROIV ROIVANT SCIENCES LTD 1.43% Equity (US) United States
NBIX NEUROCRINE BIOSCIENCES INC 1.36% Equity (US) United States
ASND ASCENDIS PHARMA 1.24% Equity (Foreign) Denmark
GMAB GENMAB SPONSORED ADR 1.20% Equity (Foreign) Denmark
BBIO BRIDGEBIO PHARMA INC 1.11% Equity (US) United States
EXEL EXELIXIS INC 1.07% Equity (US) United States
MEDP MEDPACE HOLDINGS INC 0.97% Equity (US) United States
ARWR ARROWHEAD PHARMACEUTICALS INC 0.93% Equity (US) United States
MDGL MADRIGAL PHARMACEUTICALS INC 0.93% Equity (US) United States
TECH BIO TECHNE CORP 0.89% Equity (US) United States
BMRN BIOMARIN PHARMACEUTICAL INC 0.88% Equity (US) United States
CRL CHARLES RIVER LABORATORIES INTERNA 0.83% Equity (US) United States
AXSM AXSOME THERAPEUTICS INC 0.82% Equity (US) United States
CYTK CYTOKINETICS INC 0.78% Equity (US) United States
HALO HALOZYME THERAPEUTICS INC 0.73% Equity (US) United States
IONS IONIS PHARMACEUTICALS INC 0.70% Equity (US) United States
KRYS KRYSTAL BIOTECH INC 0.69% Equity (US) United States
ALKS ALKERMES 0.68% Equity (US) United States
ABVX ABIVAX AMERICAN DEPOSITARY SHARES 0.67% Equity (Foreign) France
BNTX BIONTECH SE ADR 0.67% Equity (Foreign) Germany
PTGX PROTAGONIST THERAPEUTICS INC 0.66% Equity (US) United States
CRNX CRINETICS PHARMACEUTICALS INC 0.65% Equity (US) United States
PRAX PRAXIS PRECISION MEDICINES INC 0.65% Equity (US) United States
PCVX VAXCYTE INC 0.63% Equity (US) United States
KYMR KYMERA THERAPEUTICS INC 0.62% Equity (US) United States
SYRE SPYRE THERAPEUTICS INC 0.61% Equity (US) United States
APGE APOGEE THERAPEUTICS INC 0.61% Equity (US) United States
RGEN REPLIGEN CORP 0.59% Equity (US) United States
RYTM RHYTHM PHARMACEUTICALS INC 0.55% Equity (US) United States
BRKR BRUKER CORP 0.53% Equity (US) United States
PTCT PTC THERAPEUTICS INC 0.50% Equity (US) United States
XENE XENON PHARMACEUTICALS INC 0.48% Equity (US) United States
COGT COGENT BIOSCIENCES INC 0.46% Equity (US) United States
MIRM MIRUM PHARMACEUTICALS INC 0.45% Equity (US) United States
TWST TWIST BIOSCIENCE CORP 0.45% Equity (US) United States
Geographic Breakdown
Non-Equity Breakdown
iShares Biotechnology ETF · NPORT-P period 2026-03-31 (filed 2026-02-25)
Net assets: $8.34B · 267 total positions · equity 99.91% · non-equity 9.81%
Non-equity holdings — 13 positions, 9.81% of NAV
Category Weight Value Positions
Short-term investment 9.81% $818.0M 3
Other 0.00% $392497 8
Derivative (equity) -0.00% $-94013 2
Chart
Seasonality
MonthAvg ReturnYears of Data
Jan +1.28% 23
Feb -0.64% 23
Mar -0.20% 23
Apr +0.48% 23
May +0.59% 23
Jun +1.78% 23
Jul +3.17% 23
Aug -0.02% 22
Sep -0.03% 22
Oct -1.06% 22
Nov +3.30% 22
Dec +0.43% 22
Technical Indicators

Quick-reference for reading the values below. Indicators combine to confirm a view — no single one is a trade signal on its own.

Trend Indicators
  • SMA 20 / 50 / 200 — price above = uptrend, below = downtrend. SMA 50 crossing SMA 200 is the golden/death cross.
  • EMA 12 / 26 — faster-reacting averages; 12 above 26 is short-term bullish.
  • MACD — bullish when MACD > signal (green badge), bearish when below. Divergence from price often precedes reversals.
  • ADX (14) — trend strength regardless of direction. <20 range, 20–25 weak trend, 25–50 trend, >50 strong trend.
  • +DI / −DI — +DI > −DI favors bulls; the reverse favors bears. Read alongside ADX.
Momentum Oscillators
  • RSI (14) — <30 oversold, >70 overbought. 40–60 is neutral; trending names can stay extreme.
  • Stochastic %K / %D — <20 oversold, >80 overbought. %K crossing %D is an early momentum signal.
  • Williams %R — inverted scale: <−80 oversold, >−20 overbought.

Oscillators work best in range-bound markets; in strong trends they give premature reversal signals.

Volume & Volatility
  • Bollinger Bands — price at upper band = overbought, lower = oversold. Narrow bands (squeeze) often precede expansion.
  • OBV — cumulative volume; rising OBV confirms uptrend, falling OBV confirms downtrend. Divergence from price is a warning.
  • Vol SMA 20 / Vol ROC — today's volume vs. 20-day average. Positive ROC with price move = conviction.
  • ATR / True Range — average daily $ move; sizing and stop-loss reference.
  • HV 20 / 30 / 60 — realized (historical) volatility. Compare to IV on the options cards: IV > HV = rich premium.

Confluence matters: trend + momentum + volume agreeing carries far more weight than any single indicator. For how these feed the spread scanner score, see the algorithm docs →

Trend Indicators
SMA 20: $190.77
SMA 50: $178.56
SMA 200: $170.49
Current: $188.98
EMA 12: $189.08
EMA 26: $186.38
MACD: 2.6989 | Signal: -1.2458
BULLISH
ADX (14): 24.68
WEAK TREND
+DI: 19.12
−DI: 20.81
Momentum Oscillators
RSI (14): 55.33
NEUTRAL
Stoch %K: 21.70
Stoch %D: 17.29
Williams %R: -73.02
Volume & Volatility
BB Upper: $198.34
BB Lower: $183.19
NEUTRAL
OBV: 55,354,975
Vol SMA 20: 1,709,881
Vol ROC: -5.13%
ATR: $3.75
True Range: $4.26
HV 20: 21.7%
HV 30: 21.7%
HV 60: 22.9%

Data Summary
Data Points: 500
Last Updated:
Date Range: 2024-07-25T00:00:00 – 2026-07-23T00:00:00
AI Analysis

Choose Frenzy-Fast™ for quick analysis or Frenzy-Pro™ for comprehensive analysis.

Analysis includes technical indicators, news sentiment, risk assessment, and specific price levels to watch.

News
Options Activity
IV Rank (30D)
6.24
IV Rank (7D)
6.24
Avg IV
24.7%
Straddle (30D)
$9.20
Straddle (7D)
$9.20
P/C Volume
0.77
Spread Scanner GPU

Each spread is ranked by a composite score built in three stages. Full documentation →

Stage 1 — Base Score (GPU scanner)

score = P(profit) × (credit / spread_width)
P(profit) from short leg delta (1 − |delta|), penalised above 85%. Credit uses mid-price to handle illiquid chains fairly.

Stage 2 — Skew Adjustment (±25% cap)

RR and BF (30-delta) from the persisted per-symbol skew snapshot — wing strikes picked by real greeks.delta, not a moneyness proxy. Put skew boosts bull puts, penalises bear calls. High butterfly boosts iron condors. Calendars are skew-neutral.

Stage 3 — Technical Overlay (±50% cap, 5 groups)
Group 1 · Directional Bias (±0.25)
  • RSI <40 bullish / >60 bearish
  • MACD crossover + histogram trend
  • Price vs SMA 50 & SMA 200
Group 2 · Momentum (±0.10)
  • Stochastic %K <20 / >80
  • Williams %R <−80 / >−20
Group 3 · Volatility (up to −0.25 / +0.15)
  • Blended ATR + straddle expected-move penalty
  • Bollinger Band signal (+ counter-trend penalty)
  • BB width — vol contraction boost for ICs
Group 4 · IV Regime (±0.15)
  • IV rank ≥ 75 → strong boost for credit spreads
  • IV rank < 25 → penalty (selling cheap vol)
Group 5 · Liquidity (penalty up to −0.10)
  • Min open interest across all legs
  • OI < 100 → −0.10 · OI < 500 → −0.05

score = base_score × skew_multiplier × tech_multiplier
Both multipliers are shown per spread. Beta is informational only — ATR already captures realized vol. Full algorithm documentation →

Enter a ticker to scan for optimal spread opportunities.

Evaluates all bull put, bear call, iron condor, and calendar spread combinations using GPU-accelerated analysis.

Skew (Wing IV − ATM IV)
DTE:
Wing Δ:
Metric:
Wing vs ATM
IV(put wing) − IV(ATM), in vol points

How much the OTM put trades above (or below) the at-the-money strike. Measures the height of the put-side tail relative to ATM — i.e. how expensive crash insurance is on this name.

  • Positive (typical) — wing IV > ATM IV. Standard equity put skew: portfolios bid up crash protection, so OTM puts trade richer than ATM.
  • Near zero or negative (unusual) — wing IV ≤ ATM IV. Flat or inverted put side. Common when there's no fear demand, in tightly mean-reverting names, or right after an earnings catalyst clears.
  • Percentile vs own 3-yr history: high = wings rich (good time to sell wing premium); low = wings cheap (good time to buy protection).
  • Not directional — high or low wings don't predict up or down moves. It's a price tag on tail insurance, not a forecast.
Risk Reversal
IV(call wing) − IV(put wing), equal delta on each side

Which side of the smile is the market paying up for? Measures the tilt of the surface — call skew vs put skew at matched deltas.

  • Negative (typical) — puts richer than calls. Standard equity behavior: hedging demand makes puts carry a premium. Most large-caps sit in the −1 to −5 vol-point range.
  • Strongly negative (< −5 pts) — heavy downside hedging, elevated fear, or an upcoming catalyst (earnings, FDA, macro event). Worth flagging.
  • Positive — calls richer than puts. Unusual for equities; signals bullish momentum, short-squeeze positioning, or takeover/M&A speculation.
  • Near zero — symmetric surface. Market sees roughly equal up/down risk. Rare for large-caps; more common in commodities and FX.
Reading them together

Wing-vs-ATM tells you how expensive the tails are. Risk Reversal tells you which side is favored. Combined:

  • High wing percentile + deeply negative RR → strong put bid; stress or major event priced in. Owning protection costs a premium; selling put premium is dangerous.
  • Low wing percentile + near-zero RR → complacency; insurance cheap and balanced. Good environment to add cheap downside hedges.
  • Positive RR + elevated wings → call-side fear-of-missing-out; common in squeeze setups. Upside calls expensive, downside puts not bid.
14 DTE / 10d
pts EXTREME
ATM — / Wing —
30 DTE / 10d
pts EXTREME
ATM — / Wing —

Percentile is the rank of today's reading within ~3 years of this symbol's own history. High percentile = wings are rich relative to history; not a directional signal. Skew is read off the chain in real time, not from CBOE SKEW.

Volatility Surface

Enter a ticker to render the implied volatility surface.

Volatility Smile

Enter a ticker to render the implied volatility smile.

IV Rank (7 DTE)
IV Rank (30 DTE)
Straddle Price (30 DTE)
Beta Analysis
Beta (1Y vs SPY)
0.76
Correlation (SPY)
47.4%
0.22
Ann. Volatility
20.4%
SPY Volatility
12.7%

Low volatility - stock moves less than market

Beta & Alpha Over Time
Constituent Performance

Click any bar to view the full quote for that stock.

Constituents
Symbol Name Weight % Price 1 Day 1 Week 1 Month