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Exelixis Inc.
Healthcare · Biotechnology
Made on Jul 31, 2026
Price at call $55.97
6-month call Bear -9.2%
Target by Jan 2027 $50.80
Great value below $42.00
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 -9.2% to $50.80
Predicted High $56.20 in 2 weeks
Predicted Low $50.80 at 6 months
Max Drawdown (predicted) -9.2%

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 Jul 31, 2026 2:08 am
Bear EXEL trends lower to $50.80 (-9.2% from $55.97) by Jan 2027. ride-then-fade
ThesisEXEL trades above composite fair value but momentum, low beta, and consistent EPS beats support a slow drift rather than a sharp mean-reversion. Expect mild consolidation near current levels with gradual gravity toward the $50-52 deserved-value zone over 6 months, absent a catalyst.
Invalidated ifA clean break above $60 on volume or below $48 would falsify the slow-drift-lower thesis.
Checkpointtime after the call Datewhen it gets graded Predictedthe claim: closing price Current priceactual close — fills in over time Predicted returnpredicted vs $55.97 at call Conv.brain's confidence, 1–10 Driverwhy the brain put the point here
Prediction made Jul 31, 2026 $55.97 at call The anchor — every point below is measured from this price and date.
2 weeks Aug 14, 2026 $52.03–$59.91 typical range · internal point $56.20 ±7.0% 6/10 Momentum and low beta hold price near current
What actually happened: closed $50.61 on Aug 13, 2026 = -9.6% vs the call (predicted +0.4%)  ·  direction MISS (called flat, was down)  ·  off by 10.0 pp  ·  accuracy 4/10  ·  typical range ±7.0%: OUTSIDE the band  ·  S&P +4.1% over the same window — beat it
1 month Aug 31, 2026 $50.26–$61.68 typical range · internal point $55.50 ±10.2% 6/10 Neutral regime, no catalyst, mild consolidation
2 months Oct 1, 2026 $54.40 -2.8% 5/10 Value gravity begins asserting after run-up
3 months Oct 31, 2026 $53.20 -4.9% 5/10 Earnings likely in-window; beat priced in
4 months Dec 1, 2026 $52.00 -7.1% 4/10 Drift toward DCF and deserved value zone
5 months Dec 31, 2026 $51.30 -8.3% 4/10 Year-end tax considerations on winners
6 months Jan 31, 2027 $50.80 -9.2% 4/10 Convergence toward DCF anchor near 51

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 $55.28 (-1.2%) — 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$55.97
Composite fair value$41.16
Signal-adjusted fair value$46.82
DCF fair value$50.87
Anchored-PE fair value
Buy-below (value lens)$42.00
Value net score-65
Value confidence6 / 10
Quality net score+66
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 23.0%  3m 35.4%  6m 33.4%  
Daily σ (realism noise)2.2%
Beta vs S&P 500 1m 0.45  3m 0.60  5m 0.61  
Trailing 6-month return31.2%

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 Jul 30, 2026 freshest EXEL-20260730-185734-c8dd
ext-forensic-memo Jul 30, 2026 freshest ext-EXEL-20260730-192443-9282
ext-lens-quality Jul 30, 2026 freshest ext-EXEL-20260730-192443-9282
ext-lens-sentiment Jul 30, 2026 freshest ext-EXEL-20260730-192443-9282
ext-lens-value Jul 30, 2026 freshest ext-EXEL-20260730-192443-9282
scenario-valuation Jul 30, 2026 freshest EXEL-20260730-185734-c8dd
valuation-synthesis Jul 30, 2026 freshest EXEL-20260730-185734-c8dd

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
Jul 31, 2026 v0.6.0 Bear $55.97 $50.80 -9.2% Jan 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.