2008–Present
Market Fragility Index — Full Historical Timeline
Monthly MFI scores using the same 8-component engine as the live dashboard. Breadth (composite) uses spx_equal_weight_vs_spx v2026.08.1 (native overlap from ~2007-01; omitted earlier with weight renormalization).
View range:
View mode: Era A: live-equivalent scale · pre-2021: rebased index (V2)
All-Time Peak MFI
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All-Time Low MFI
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Current MFI
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Months Above 60
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elevated/extreme readings
Crisis Deep-Dive
MFI Score — Monthly 1990 to Present (with crash event markers)
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Component Breakdown — Historical Stress by Category
Breadth (composite): spx_equal_weight_vs_spx v2026.08.1. EW/CW native Yahoo overlap (~2007-01); % above 200-DMA from Wikipedia+yfinance (~late-1990s, gate ≥400). A/D line overlay uses same constituents (not MFI weight). Survivorship bias tagged. Pre-overlap months omit breadth and renormalize MFI weights.
Monthly Data Table
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