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+10.7% to $381.00
Predicted High$381.00at 6 months
Predicted Low$346.50in 2 weeks
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 13, 2026 1:22 am
Bull
AXP trends higher to
$381.00
(+10.7% from $344.08)
by Feb 2027.
dip-then-recover
ThesisAXP trades below composite fair value with strong quality and a risk-on tape, but weak value score and credit-cycle overhang cap upside. Expect a gradual grind higher toward the deterministic baseline near $380, with modest early drift and firmer convergence as the window matures.
Invalidated ifBreak below $315 on credit-cycle deterioration or regime flip to risk-off would falsify the upward drift.
Checkpointtime after the call
Datewhen it gets graded
Predictedthe claim: closing price
Current priceactual close — fills in over time
Predicted returnpredicted vs $344.08 at call
Conv.brain's confidence, 1–10
Driverwhy the brain put the point here
Prediction made
Aug 13, 2026
—
$344.08at call
—
—
The anchor — every point below is measured from this price and date.
2 weeks
Aug 27, 2026
$326.77–$361.39typical range · internal point $346.50
—
±5.0%
6/10
quiet tape, mild risk-on drift, no catalyst
What actually happened:
closed $336.15
on Aug 26, 2026 = -2.3% vs the call
(predicted +0.7%)
· direction HIT
(called flat, was flat)
· off by 3.0 pp
· accuracy 9/10
· typical range ±5.0%:
inside the band
· S&P -1.6%
over the same window — lagged it
1 month
Sep 13, 2026
$318.99–$369.17typical range · internal point $349.00
—
±7.3%
5/10
slow grind as sentiment stays neutral-positive
What actually happened:
closed $324.69
on Sep 11, 2026 = -5.6% vs the call
(predicted +1.4%)
· direction MISS
(called flat, was down)
· off by 7.1 pp
· accuracy 4/10
· typical range ±7.3%:
inside the band
· S&P -1.8%
over the same window — lagged it
2 months
Oct 13, 2026
$352.50
—
+2.4%
4/10
pre-earnings positioning, October chop possible
What actually happened:
closed $311.53
on Oct 12, 2026 = -9.5% vs the call
(predicted +2.5%)
· direction MISS
(called flat, was down)
· off by 11.9 pp
· accuracy 4/10
· S&P +0.1%
over the same window — lagged it
3 months
Nov 13, 2026
$362.00
—
+5.2%
5/10
Q3 print likely beats, quality reasserts
4 months
Dec 13, 2026
$370.00
—
+7.5%
5/10
value-convergence toward signal-adjusted fair value
5 months
Jan 13, 2027
$376.00
—
+9.3%
4/10
continued drift toward composite anchor
6 months
Feb 13, 2027
$381.00
—
+10.7%
4/10
approaches deterministic baseline near 384
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
$384.37
(+11.7%)
— 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
No weaknesses recorded for this run.
All inputs present, no fallbacks used — nothing to flag.
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
$344.08
Composite fair value
$434.98
Signal-adjusted fair value
$373.34
DCF fair value
$364.69
Anchored-PE fair value
$575.57
Buy-below (value lens)
$295.00
Value net score
-11
Value confidence
6 / 10
Quality net score
+72
Memo confidence
7 / 10
Deserved value (base)
—
Quality tilt
—
Deserved value (used)
—
Coherence (value × quality)
—
Price behaviour (trailing — shapes the realism line)