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+7.4% to $95.30
Predicted High$95.30at 6 months
Predicted Low$90.20in 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 6, 2026 1:05 am
Bull
IBKR trends higher to
$95.30
(+7.4% from $88.74)
by Feb 2027.
ride-then-fade
ThesisIBKR trades near composite fair value with strong quality and a supportive risk-on tape, so modest upside toward the deterministic $95 endpoint is the base case. Bullish sentiment and momentum carry the early weeks, then value gravity slows the ascent as price meets fair-value ceiling. No earnings catalyst inside the window limits both breakout and breakdown risk.
Invalidated ifA break below $80 on a regime flip to risk-off, or a sharp move above $100 without earnings, would falsify this path.
Checkpointtime after the call
Datewhen it gets graded
Predictedthe claim: closing price
Current priceactual close — fills in over time
Predicted returnpredicted vs $88.74 at call
Conv.brain's confidence, 1–10
Driverwhy the brain put the point here
Prediction made
Aug 6, 2026
—
$88.74at call
—
—
The anchor — every point below is measured from this price and date.
2 weeks
Aug 20, 2026
$81.74–$95.74typical range · internal point $90.20
—
±7.9%
7/10
Risk-on tape and positive sentiment extend recent momentum
What actually happened:
closed $90.54
on Aug 19, 2026 = +2.0% vs the call
(predicted +1.7%)
· direction HIT
(called flat, was flat)
· off by 0.4 pp
· accuracy 10/10
· typical range ±7.9%:
inside the band
· S&P 0.0%
over the same window — beat it
1 month
Sep 6, 2026
$78.60–$98.88typical range · internal point $91.80
—
±11.4%
6/10
Analyst tone and quality bid push toward fair value
2 months
Oct 6, 2026
$93.50
—
+5.4%
5/10
Drift higher into Q3 print anticipation, momentum intact
3 months
Nov 6, 2026
$94.80
—
+6.8%
5/10
Value gravity meets composite fair value near 90-95
Converges to deterministic endpoint near fair value
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
$95.19
(+7.3%)
— both lines get graded at every checkpoint, so the brain has to beat the formula, not just replace it.
Brain: claude-opus-4-7.