X

XBIState Street SPDR S&P Biotech ETF

Options Analysis Report
AUM $12.0B|ARCX
2026-08-28$162.38
NEUTRAL
Analysis: 2026-08-27 EOD data
1Y +80.7%YTD +33.6%7D -2.0%
14,363
30D
±9.0%
10%

XBI Options Overview

Mixed signals. Conditions favor premium sellers.

REWARDS

RISK ANALYSIS

5.4VALUESENTIMENTACTIVITYLIQUIDITYTIMING

Snowflake Analysis

Balanced conditions with no clear edge

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XBI Gamma Walls

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XBI Hedge Radar

Neither score is at an extreme today. Neither axis is a forecast — this is where XBI sits on protection cost vs. fragility today.

Protection is priced in the cheap band (3.15) — the move being priced is 1.64x this name's own median 20-trading-day move, and downside puts carry 0.6 IV points more than at-the-money, measured against this name's own rolling 20-trading-day realized moves (484 overlapping windows). Fragility reads neutral (4.22): it is trading 3% above its hedge wall on a wall graded HIGH for reliability, and its realized-vol regime is stable.

Protection cost
3.15/ 10cheap
Basis: cross_sectional
Fragility
4.22/ 10neutral
Basis: per_ticker

Value

Is IV priced right?

6.2
ExpensiveCheap

Measures whether options are cheap, fair, or rich relative to historical and peer

levels.

Risk Checks6/9 checks passed
≤35%

IV Rank 48.9% — elevated vs history

<1.05x

IV/HV 0.99x — IV ≤ HV

Sector Relative≤50%

Sector percentile 69% — above sector median

<1.1x

Front/Back 0.97x — contango

<1.25x

Put/Call IV 1.16x — elevated

<80%

ATM IV 32.6% — normal range

<80%

Effective IV 49.8% (ATM 32.6% + spread 8.6% + bias) — excellent value

<3.0%

Total drag 13.45% (spread 8.59% + slippage 4.86%) — high friction

≥5.0

Vega efficiency 23.61 (vega 20.280 / spread 8.59%) — efficient

Sentiment

Bullish or bearish?

5.1
BearishBullish

Analyzes

,
, and flow direction to determine market bias.

Risk ChecksVery Bullish - Moderate signal (Conviction: +40%, Raw: +32%)
|net sentiment| ≥25%

Conviction-weighted: +40% (strong bullish) — Raw: +32%

≥15%

|OI skew| 6.5% — balanced

Same sign, |vol skew| ≥10%

Vol skew -35.4%, OI skew -6.5% — aligned

≥2/3 conditions

0-DTE 25%, far-OTM 15%, avg DTE 30

|change| ≥3%

OI change +0.0% (5d) — stable

|weighted flow| ≥20%

ITM: -44%, ATM: +52%, OTM: +26% — neutral (ITM/ATM divergent)

Sector Relative≤40% or ≥60%

Sector P/C percentile 93% — very bearish vs sector

Activity

Unusual activity?

3.6
QuietActive

Detects volume surges,

, and unusual options activity that may signal moves.

Risk Checks1/8 checks passed
≥1.5x

Volume 0.6x avg — normal

≥15%

Vol/OI 2.4% — normal turnover

≥2 days

1 day(s) elevated — may be one-day event

≥5%

OI change -11.6% (5d) — unwinding

Sector Relative≥60%

Sector activity percentile 49% — neutral vs sector

≥30%

Large trade volume 29% — mixed

≥60%

Aggressive execution 29% — patient

≥30

Conviction +40 (bullish) — moderate

Liquidity

Can I trade efficiently?

4.7
IlliquidLiquid

Evaluates

, volume depth, and open interest for trade execution quality.

Risk Checks4/8 checks passed
≤5.0%

Spread 8.6% — wide

≥10,000

OI 593,799 — deep

≥500

Volume 14,363/day — active

≤$0.50

$0.43 to cross — cheap

≥5 strikes

0 liquid strikes — limited options

Sector Relative≤40%

Sector spread percentile 77% — wider than sector

≥100 contracts

Depth 266.3 contracts (bid:125.4 ask:140.9) — adequate

<1.0%

Avg slippage 4.86% — poor

Timing

Is now a good time?

7.4
RiskyFavorable

Considers earnings proximity,

, and event calendar for optimal entry timing.

Risk Checks6/9 checks passed
|slope| ≥5%

Slope -3.4% — flat/unclear

<30 or >70

IV percentile 49% — neutral

≥10pts kink

IV kink -0.6pts — no clear event

<0.5 or >2.0

θ/ν ratio 197.85 — favors income trades

≥3 expirations

4 liquid expirations — flexible

≥60% (safe)

safe window: No earnings detected

<1.2 ratio

Spread ratio 1.00x — stable

≥25% strength + ≥50% consistency

Flow +40% @ 70% consistency — STRONG directional (bullish)

≥40 composite score

Score 59 (ITM 20% + inst 29%) — moderate institutional

Directional Strategy Fit

Option Buyers
Long Calls5.8
bullishIV cheap, mixed flow
Long Puts5.7
bearishIV cheap, mixed flow
Premium Sellers
Cash-Secured Put5.0
bullishIV too cheap, mixed flow
Covered Call4.9
bearishIV too cheap, mixed flow

For educational purposes only. Not investment advice.

The Options Desk tracks the move options price into every US earnings report the week of Aug 31, next to how much each stock has actually moved on its past prints — plus the SPY, QQQ and IWM expected ranges and the gamma walls that box them in.