BHI 3.0·Q1 2026 Bulletin
Last computed 14:32 UTC, Apr 29 2026·Spearman ρ = 0.83·Validation: preliminary
Today's bulletin →
Movers · since 14:32 UTC, Apr 29 2026
PLATFORM PROFILEJPM

JPMorgan Chase

$680BLargest US bankBanks & Financial Markets
6.13
B-index (V3.1)
BLACK HOLE
Capture2.042
Escape0.333
Key Structural Insight

Corporate banking lock-in measured in decades, not quarters. Relationship complexity = switching cost.

Eleven-Parameter Profile

5DATAMEMACTPROCNETCLOSEPORTSUBFALLORGMOM
Data Depth9/10
Memory8/10
Action8/10
Process9/10
Network8/10
Closeness8/10
Portability3/10
Substitutability4/10
Human Fallback3/10
Org Depth9/10
Momentum6/10
Capture Escape Extended

V3.1 Decomposition

ComponentValueFormula
CES₄ capture core0.8493CES(d, m, a, p)
Knowledge synergy σₖ0.8485√(d · m)
Operability synergy σₒ0.8485√(a · p)
Synergy boost1.25461 + 0.3·(σₖ + σₒ)/2
Org-depth multiplier1.45001 + 0.5·o
Momentum multiplier1.18001 + 0.3·t
Total Capture2.0417c·(1+0.5n)·core·syn·org·mom
CES₃ escape core0.3317CES(x, s, h)
Feedback attenuation0.7028max(0.3, 1 − 0.35·core)
Total Escape0.3331ε + escCore · feedback
B = Capture / Escape6.132.042 / 0.333

Scoring Rationale

Largest US bank. Corporate banking relationships spanning decades. Lending, treasury, custody, payments, trading — all integrated. Switching primary bank = moving every financial relationship simultaneously.

Parameter Sensitivity

MARGINAL B-INDEX CHANGE PER ±1 SCORE SHIFT
CLOSE8
+1.53
FALL3
-0.93
PORT3
-0.93
SUB4
-0.80
ACT8
+0.56
MEM8
+0.56
DATA9
+0.52
PROC9
+0.52
NET8
+0.44
ORG9
+0.42
MOM6
+0.31
+ raises B (deepens lock-in) lowers B (aids escape)

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