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Vulcan Materials Co.
Basic Materials · Building Materials
Made on Aug 25, 2026
Price at call $274.64
6-month call Bear -9.0%
Target by Feb 2027 $250.00
Great value below $170.00
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 -9.0% to $250.00
Predicted High $273.50 in 2 weeks
Predicted Low $250.00 at 6 months
Max Drawdown (predicted) -9.0%

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 25, 2026 1:15 pm
Bear VMC trends lower to $250.00 (-9.0% from $274.64) by Feb 2027. decay
ThesisVMC trades at a rich premium to fair value but the infrastructure-monopoly narrative and low beta cushion downside; expect a modest drift lower over 6 months as multiple compression and tired sentiment weigh, without a catalyst for a sharp break.
Invalidated ifA break above $290 on infrastructure-bill or M&A catalyst, or a break below $240 on macro/credit shock, would falsify a gentle drift.
Checkpointtime after the call Datewhen it gets graded Predictedthe claim: closing price Current priceactual close — fills in over time Predicted returnpredicted vs $274.64 at call Conv.brain's confidence, 1–10 Driverwhy the brain put the point here
Prediction made Aug 25, 2026 — $274.64 at call — —The anchor — every point below is measured from this price and date.
2 weeks Sep 8, 2026 $256.61–$292.67 typical range · internal point $273.50 — ±6.6% 7/10 Neutral regime, low beta, sideways drift near current
What actually happened: closed $262.63 on Sep 4, 2026 = -4.4% vs the call (predicted -0.4%)  ·  direction HIT (called flat, was flat)  ·  off by 4.0 pp  ·  accuracy 9/10  ·  typical range ±6.6%: inside the band  ·  S&P +0.5% over the same window — beat it
1 month Sep 25, 2026 $248.52–$300.76 typical range · internal point $271.00 — ±9.5% 6/10 Mild fade as stretched-multiple concern lingers
What actually happened: closed $241.70 on Sep 24, 2026 = -12.0% vs the call (predicted -1.3%)  ·  direction MISS (called flat, was down)  ·  off by 10.7 pp  ·  accuracy 4/10  ·  typical range ±9.5%: OUTSIDE the band  ·  S&P +0.4% over the same window — beat it
2 months Oct 25, 2026 $266.00 — -3.1% 5/10 Q3 print approaches, positioning cautious
3 months Nov 25, 2026 $262.00 — -4.6% 5/10 Earnings digestion, guidance likely in-line not stellar
4 months Dec 25, 2026 $258.00 — -6.1% 4/10 Year-end tax selling on underperformer
5 months Jan 25, 2027 $253.00 — -7.9% 4/10 January reset, value gravity intensifies
6 months Feb 25, 2027 $250.00 — -9.0% 4/10 Continued compression toward baseline endpoint

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 $248.24 (-9.6%) — 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 · 2 degraded · 0 notes — follow the chain top-down (cause → effect).
  • Degraded
    [critical] Revenue is volatile and unreliable — growth projections are speculative
    upstream:valuation-synthesis
  • Degraded
    [critical] Valuation is extremely fragile — almost no scenarios support the current price
    upstream:valuation-synthesis

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$274.64
Composite fair value$147.01
Signal-adjusted fair value$136.78
DCF fair value$93.07
Anchored-PE fair value$316.83
Buy-below (value lens)$170.00
Value net score-78
Value confidence7 / 10
Quality net score+69
Memo confidence8 / 10
Deserved value (base)—
Quality tilt—
Deserved value (used)—
Coherence (value × quality)—

Price behaviour (trailing — shapes the realism line)

Realized volatility (annualized) 1m 33.5%  3m 32.9%  6m 30.7%  
Daily σ (realism noise)2.1%
Beta vs S&P 500 1m 0.60  3m 0.63  5m 0.81  
Trailing 6-month return-11.2%

Knobs (equation params)

ladder["w2","m1","m2","m3","m4","m5","m6"]
llm_modelclaude-opus-4-7
max_tokens3000
control_knobs{"w_dcf":0.5,"k_qual":0.200000000000000011102230246251565404236316680908203125,"reach_6m":0.450000000000000011102230246251565404236316680908203125,"coh_floor":0.5,"conf_gain":0.059999999999999997779553950749686919152736663818359375,"noise_phi":0.84999999999999997779553950749686919152736663818359375,"conf_floor":0.40000000000000002220446049250313080847263336181640625,"w_composite":0.5,"noise_window":"3m","flat_band_pct":5,"horizon_months":6,"noise_sigma_fallback":0.01499999999999999944488848768742172978818416595458984375}
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 25, 2026 freshest VMC-20260825-050001-63ec
ext-forensic-memo Aug 25, 2026 freshest ext-VMC-20260825-063939-6884
ext-lens-quality Aug 25, 2026 freshest ext-VMC-20260825-063939-6884
ext-lens-sentiment Aug 25, 2026 freshest ext-VMC-20260825-063939-6884
ext-lens-value Aug 25, 2026 freshest ext-VMC-20260825-063939-6884
scenario-valuation Aug 25, 2026 freshest VMC-20260825-050001-63ec
valuation-synthesis Aug 25, 2026 freshest VMC-20260825-050001-63ec

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 25, 2026 v0.6.0 Bear $274.64 $250.00 -9.0% 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.