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$72.20at 6 months
Predicted Low$67.80in 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
—
$67.99at call
—
—
The anchor — every point below is measured from this price and date.
2 weeks
Sep 16, 2026
$64.99–$70.99typical range · internal point $67.80
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–$72.34typical 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
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.