RIORio Tinto plc
RIO Options Overview
Mixed signals. No clear edge detected.
REWARDS
RISK ANALYSIS
RIO Gamma Walls
Value
Is IV priced right?
Measures whether options are cheap, fair, or rich relative to historical and peer
IV Rank 48.8% — elevated vs history
IV/HV 0.99x — IV ≤ HV
Sector percentile 17% — below sector median
Front/Back 0.90x — contango
Put/Call IV 1.16x — elevated
ATM IV 31.7% — normal range
Effective IV 47.0% (ATM 31.7% + spread 7.7% + bias) — excellent value
Total drag 10.66% (spread 7.67% + slippage 2.99%) — high friction
Vega efficiency 19.70 (vega 15.109 / spread 7.67%) — efficient
Sentiment
Bullish or bearish?
Analyzes
Conviction-weighted: -6% (neutral) — Raw: -7%
|OI skew| 12.8% — balanced
Vol skew +30.0%, OI skew +12.8% — aligned
0-DTE 0%, far-OTM 15%, avg DTE 30
OI change +0.0% (5d) — stable
ITM: -22%, ATM: +2%, OTM: -11% — bearish (ITM/ATM divergent)
Sector P/C percentile 56% — bearish vs sector
Activity
Unusual activity?
Detects volume surges,
Volume 0.3x avg — normal
Vol/OI 2.1% — normal turnover
1 day(s) elevated — may be one-day event
OI change +2.8% (5d) — building
Sector activity percentile 51% — neutral vs sector
Large trade volume 19% — mixed
Aggressive execution 36% — patient
Conviction -6 (bearish) — mixed
Liquidity
Can I trade efficiently?
Evaluates
Spread 7.7% — wide
OI 122,929 — deep
Volume 2,588/day — adequate
$0.38 to cross — cheap
0 liquid strikes — limited options
Sector spread percentile 54% — neutral vs sector
Depth 166.8 contracts (bid:79.3 ask:87.5) — adequate
Avg slippage 2.99% — poor
Timing
Is now a good time?
Considers earnings proximity,
Slope -10.3% — contango
IV percentile 49% — neutral
IV kink -2.2pts — no clear event
θ/ν ratio 292.25 — favors income trades
3 liquid expirations — flexible
safe window: No earnings detected
Spread ratio 1.00x — stable
Flow -6% @ 53% consistency — unclear
Score 49 (ITM 20% + inst 19%) — moderate 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.