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W. R. Berkley Corporation
Financial Services · Insurance - Property & Casualty
Made on Sep 2, 2026
Price at call $67.99
6-month call Bull +6.2%
Target by Mar 2027 $72.20
Great value below $58.00
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 +6.2% to $72.20
Predicted High $72.20 at 6 months
Predicted Low $67.80 in 2 weeks
Max Drawdown (predicted) -0.3%

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 Sep 2, 2026 1:08 pm
Bull WRB trends higher to $72.20 (+6.2% from $67.99) by Mar 2027. flat-then-break
ThesisWRB is a quality specialty insurer trading modestly above composite fair value but below signal-adjusted fair value, with consistent earnings beats and a durable low-beta profile. Expect a slow drift toward the signal-adjusted anchor near $72 over six months, with early consolidation given neutral regime and mildly negative sentiment.
Invalidated ifA break below $64 on adverse reserve development or a P and C sector shock would falsify the gradual re-rating thesis.
Checkpointtime after the call Datewhen it gets graded Predictedthe claim: closing price Current priceactual close — fills in over time Predicted returnpredicted vs $67.99 at call Conv.brain's confidence, 1–10 Driverwhy the brain put the point here
Prediction made Sep 2, 2026 — $67.99 at call — —The anchor — every point below is measured from this price and date.
2 weeks Sep 16, 2026 $64.99–$70.99 typical range · internal point $67.80 — ±4.4% 7/10 Neutral regime, low beta, minimal near-term catalyst
What actually happened: closed $71.28 on Sep 15, 2026 = +4.8% vs the call (predicted -0.3%)  ·  direction HIT (called flat, was flat)  ·  off by 5.1 pp  ·  accuracy 8/10  ·  typical range ±4.4%: OUTSIDE the band  ·  S&P -1.1% over the same window — beat it
1 month Oct 2, 2026 $63.64–$72.34 typical range · internal point $68.20 — ±6.4% 6/10 Drift higher as quality bid persists in quiet tape
What actually happened: closed $68.90 on Oct 1, 2026 = +1.3% vs the call (predicted +0.3%)  ·  direction HIT (called flat, was flat)  ·  off by 1.0 pp  ·  accuracy 10/10  ·  typical range ±6.4%: inside the band  ·  S&P +0.0% over the same window — beat it
2 months Nov 2, 2026 $69.10 — +1.6% 5/10 Q3 print approaches, sixth consecutive beat likely
3 months Dec 2, 2026 $70.30 — +3.4% 5/10 Post-earnings lift on continued underwriting discipline
4 months Jan 2, 2027 $70.80 — +4.1% 4/10 Year-end positioning favors defensive quality names
5 months Feb 2, 2027 $71.50 — +5.2% 4/10 Gradual convergence toward signal-adjusted fair value
6 months Mar 2, 2027 $72.20 — +6.2% 4/10 Approaches signal-adjusted anchor near 72.70

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 $69.29 (+1.9%) — 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: dcf.
    anchor:dcf

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$67.99
Composite fair value$65.14
Signal-adjusted fair value$72.70
DCF fair value—
Anchored-PE fair value$65.14
Buy-below (value lens)$58.00
Value net score-6
Value confidence7 / 10
Quality net score+76
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 13.5%  3m 22.2%  6m 21.9%  
Daily σ (realism noise)1.4%
Beta vs S&P 500 1m -0.26  3m -0.81  5m -0.57  
Trailing 6-month return-6.8%

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 Sep 2, 2026 freshest WRB-20260902-040001-7e43
ext-forensic-memo Sep 2, 2026 freshest ext-WRB-20260902-044633-b1ee
ext-lens-quality Sep 2, 2026 freshest ext-WRB-20260902-044633-b1ee
ext-lens-sentiment Sep 2, 2026 freshest ext-WRB-20260902-044633-b1ee
ext-lens-value Sep 2, 2026 freshest ext-WRB-20260902-044633-b1ee
scenario-valuation Sep 2, 2026 freshest WRB-20260902-040001-7e43
valuation-synthesis Sep 2, 2026 freshest WRB-20260902-040001-7e43

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
Sep 2, 2026 v0.6.0 Bull $67.99 $72.20 +6.2% Mar 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.