SPX
SPX Options Overview
IV is low with unusual activity. Conditions favor option buyers.
REWARDS
RISK ANALYSIS
SPX Gamma Walls
Value
Is IV priced right?
Measures whether options are cheap, fair, or rich relative to historical and peer
IV Rank 8.2% — cheap vs history
IV/HV 1.00x — IV ≤ HV
Sector percentile 8% — below sector median
Front/Back 0.72x — contango
Put/Call IV 1.16x — elevated
ATM IV 14.4% — normal range
Effective IV 15.7% (ATM 14.4% + spread 0.7% + bias) — excellent value
Total drag 1.30% (spread 0.66% + slippage 0.64%) — minimal drag
Vega efficiency 21903.72 (vega 1445.646 / spread 0.66%) — efficient
Sentiment
Bullish or bearish?
Analyzes
Conviction-weighted: +0% (neutral) — Raw: -1%
|OI skew| 16.6% — put-heavy
Vol skew -19.6%, OI skew -16.6% — aligned
0-DTE 0%, far-OTM 15%, avg DTE 30
OI change +0.0% (5d) — stable
ITM: +0%, ATM: +0%, OTM: +0% — neutral (ITM/ATM divergent)
Sector P/C percentile 87% — very bearish vs sector
Activity
Unusual activity?
Detects volume surges,
Volume 0.8x avg — normal
Vol/OI 2.5% — normal turnover
1 day(s) elevated — may be one-day event
OI change +2.2% (5d) — building
Sector activity percentile 57% — neutral vs sector
Large trade volume 54% — heavy institutional
Aggressive execution 16% — patient
Conviction +0 (neutral) — mixed
Liquidity
Can I trade efficiently?
Evaluates
Spread 0.7% — tight
OI 17,575,444 — deep
Volume 442,675/day — active
$0.03 to cross — cheap
191 liquid strikes — good coverage
Sector spread percentile 41% — neutral vs sector
Depth 727.6 contracts (bid:368.3 ask:359.3) — deep
Avg slippage 0.64% — good
Timing
Is now a good time?
Considers earnings proximity,
Slope -28.2% — contango
IV percentile 8% — buyer opportunity
IV kink -2.8pts — no clear event
θ/ν ratio 901.78 — favors income trades
4 liquid expirations — flexible
safe window: No earnings detected
Spread ratio 1.00x — stable
Flow +0% @ 50% consistency — unclear
Score 84 (ITM 20% + inst 54%) — HIGH institutional
Directional Strategy Fit
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.