September 24, 2026 · 5 min read
The Greeks manifold prices a long call on a 60 by 60 Black-Scholes grid over spot and time to expiry, draws profit and loss as height against a premium fixed at the strike and the longest tenor, and colors each cell by one Greek. Gamma i…
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September 24, 2026 · 4 min read
The yield curve surface reads 11 FRED constant-maturity Treasury series from one month to thirty years, keeps the 60 most recent complete daily curves, and labels the curve inverted when the 30-year yield is more than 0.1 percentage poin…
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August 3, 2026 · 3 min read
My kids collect Pokemon cards, and one of them asked what a Charizard is actually worth. Answering it turned into a weekend build: a chart that puts graded cards and the S&P 500 on one indexed axis, and admits out loud where its data is…
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July 6, 2026 · 9 min read
A 3D render crossed my feed once and stuck with me, so I tried to see an option the same way: as a surface I could grab and turn, not a number. That turned into five market visualizations on one shared trick, a compliance rule the archit…
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July 4, 2026 · 7 min read
A screensaver joke, every stock a fish, grew into a six-lens market board I leave running on a wall. It lives in one HTML file on purpose, its data is baked because the browser is not allowed to fetch it, and the feature that finally mad…
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