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Rio Tinto Plc
Basic Materials · Other Industrial Metals & Mining
Made on Aug 5, 2026
Price at call $99.01
6-month call Bear -12.6%
Target by Feb 2027 $86.50
Great value below $78.00
Model v0.6.0

Projection vs Actual (6M history + forecast)

The masterbrain's trajectory (blue, curved through its 7 checkpoints), the deterministic v0.3 control (dashed), and the actual price (green) overlaid from the prediction date forward.
Forecast Change -12.6% to $86.50
Predicted High $101.50 at 1 month
Predicted Low $86.50 at 6 months
Max Drawdown (predicted) -12.6%

Forecast

The masterbrain trajectory — 7 dated checkpoints. Short rungs (2w, 1m) show the typical range as the primary claim; point calls run from 2 months out. Every claim still gets graded. Predicted Aug 5, 2026 1:45 am
Bear RIO trends lower to $86.50 (-12.6% from $99.01) by Feb 2027. ride-then-fade
ThesisRIO enjoys a near-term sentiment tailwind from the risk-on tape and the 'AI-trade broadens to metals' narrative, likely holding or extending gains for a few weeks. Over months, negative value and quality signals plus a fair value near $80 should reassert gravity, pulling price toward the mid-80s by early 2027.
Invalidated ifA sustained break above $108 on strong volume, or a regime flip to risk-off with RIO holding above $95, would falsify the fade thesis.
Checkpointtime after the call Datewhen it gets graded Predictedthe claim: closing price Current priceactual close — fills in over time Predicted returnpredicted vs $99.01 at call Conv.brain's confidence, 1–10 Driverwhy the brain put the point here
Prediction made Aug 5, 2026 $99.01 at call The anchor — every point below is measured from this price and date.
2 weeks Aug 19, 2026 $92.09–$105.93 typical range · internal point $100.75 ±7.0% 6/10 Risk-on tape and metals-AI narrative extend near-term lift
What actually happened: closed $100.52 on Aug 19, 2026 = +1.5% vs the call (predicted +1.8%)  ·  direction HIT (called flat, was flat)  ·  off by 0.2 pp  ·  accuracy 10/10  ·  typical range ±7.0%: inside the band  ·  S&P +0.2% over the same window — beat it
1 month Sep 5, 2026 $88.98–$109.04 typical range · internal point $101.50 ±10.1% 5/10 Momentum persists but valuation resistance emerging
2 months Oct 5, 2026 $98.00 -1.0% 5/10 Narrative fatigue begins; value gravity starts pulling
3 months Nov 5, 2026 $94.50 -4.6% 6/10 Fair-value pull dominates as sentiment premium fades
4 months Dec 5, 2026 $91.00 -8.1% 6/10 Convergence toward composite fair value near 80
5 months Jan 5, 2027 $88.00 -11.1% 5/10 Value gravity continues; negative quality net weighs
6 months Feb 5, 2027 $86.50 -12.6% 4/10 Settles above deterministic anchor as fundamentals reassert

Why ranges on the short rungs? A 102-prediction trial (2026-07-21) showed 2-week point calls carry no information here — three prompt formulations all lost to simply predicting zero — while the stock's own volatility scale (σ×√t) described those windows well. So the short rungs claim what's actually knowable: the typical travel, with earnings timing flagged where the variance will come from. The internal point calls keep being generated and graded to map where real skill begins. Full evidence: stocks/predictions/V0.5-DESIGN.md §8.

Deterministic control (v0.3 value line) targets $90.44 (-8.7%) — both lines get graded at every checkpoint, so the brain has to beat the formula, not just replace it. Brain: claude-opus-4-7.

Weaknesses

0 blocking · 0 degraded · 1 note — follow the chain top-down (cause → effect).
  • Note
    Valuation anchor absent: anchored_pe.
    anchor:anchored_pe

Equation Inputs

Everything feeding the v0.6.0 model — value anchors, the stock's own price behaviour, and the tunable knobs.

Value anchors (from deep analysis)

Price at call$99.01
Composite fair value$79.56
Signal-adjusted fair value$81.82
DCF fair value$75.12
Anchored-PE fair value
Buy-below (value lens)$78.00
Value net score-69
Value confidence7 / 10
Quality net score-10
Memo confidence7 / 10
Deserved value (base)
Quality tilt
Deserved value (used)
Coherence (value × quality)

Price behaviour (trailing — shapes the realism line)

Realized volatility (annualized) 1m 30.7%  3m 35.1%  6m 34.7%  
Daily σ (realism noise)2.2%
Beta vs S&P 500 1m 0.97  3m 1.56  5m 1.51  
Trailing 6-month return7.0%

Knobs (equation params)

ladderArray
llm_modelclaude-opus-4-7
max_tokens3000
control_knobsArray
Neutral band (%)5
earnings_briefv1
prompt_versionp1
control_versionv0.3.0

Version & Tech Chain

What produced this prediction — stamped on the record so versions can be compared by success rate later.
Model v0.6.0 #271041f8fcd5

Tech composition (what this version is built from)

#ProcessKindGroup
1 Synthesis valuation-synthesis deterministic final
2 Scenario Analysis scenario-valuation deterministic valuation
3 Valuation / Mispricing ext-lens-value llm extended
4 Company Quality ext-lens-quality llm extended
5 Forensic Memo (combiner) ext-forensic-memo llm extended
6 Classification company-classification llm foundation
7 Live Quote fmp-quote data market-data

Inputs used (the runs that fed this prediction)

Upstream processRanLagRun id
company-classification Aug 5, 2026 freshest RIO-20260805-002504-43d7
ext-forensic-memo Aug 5, 2026 freshest ext-RIO-20260805-013018-a24f
ext-lens-quality Aug 5, 2026 freshest ext-RIO-20260805-013018-a24f
ext-lens-sentiment Aug 5, 2026 freshest ext-RIO-20260805-013018-a24f
ext-lens-value Aug 5, 2026 freshest ext-RIO-20260805-013018-a24f
scenario-valuation Aug 5, 2026 freshest RIO-20260805-002504-43d7
valuation-synthesis Aug 5, 2026 freshest RIO-20260805-002504-43d7

Inputs flagged 7d+ behind the freshest one may be stale relative to the rest of the analysis.

Saved History

1 frozen snapshot — the record we score once predictions mature.
MadeModelCallAt callTargetExp.Eval due
Aug 5, 2026 v0.6.0 Bear $99.01 $86.50 -12.6% Feb 2027 viewing

Not Yet Modeled

What this v0.6.0 forecast deliberately ignores — the work ahead, in plain sight.
  • Scenario probabilities — one path, no bull/bear split (base_prob = 1.0).
  • Intraday / sub-2-week behaviour — the first claim is at 14 days by design (EOD product).
  • Position sizing / portfolio context — the path is a price claim only.