My morning game plan opens with a gamma-exposure snapshot — the one read that tells you whether the day will mean-revert and pin or trend and extend. Then it started printing UNAVAILABLE. GEX lives and dies on open interest, so here’s why a paid options API wasn’t the fix, and how CBOE’s free public feed brought it back — with the insight that makes the “free and delayed” version actually correct.
Taming the Finviz Elite Export API with a JSON Schema
The Finviz Elite export API is powerful but undocumented — column IDs are bare integers with no spec. Here’s how a JSON Schema catalog solves that and powers a pre-market gap scanner that feeds a daily trading game plan.
falcon-stats: A Trading Discipline System Built on PAI
I am open-sourcing falcon-stats — a complete trading discipline system built on Daniel Miessler‘s PAI framework. It ingests your DAS Trader data, calculates statistical covariance, scores your discipline, and tells you the truth about your trading. Here is why I built it and how you can use it.
Building a Bookmap-Style CVD Indicator with Claude Code and Python
Exploring how to build a Cumulative Volume Delta indicator and compact order flow visualization using IBKR tick data, Python, and modern charting libraries — with Claude as a development partner.
A simple way to install the Amazon AWSCLI on RHEL 7 on-demand instances
How to install AWS CLI on RHEL 7 when pip is not supported for system Python
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