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Market notes, options frameworks, and small tools shaped by real problems — free to read, use, and remix.

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What lives here

Market judgment Pre-market briefs and market notes that translate context into what matters. Options playbooks Frameworks and decision trees for systematic options thinking. Open-source tools macOS tools and scripts that solve small problems during the workday.

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Market note

**Sept. 21, 2026 US Stock Brief | Oil Crashes 8%, Nasdaq Hits a Record High**

WTI fell 8.06% in a single day to close at $92.22. The Nasdaq rose 2.26% to 27,122.09, closing at a record high. The S&P...

Read the brief Options guide

What Are Options

Understand the core logic of options through insurance, property deposits, and grain price guarantees

Open guide macOS tool

Aloud

macOS menu-bar voice input — tap Fn to talk, text lands in the focused field

Open tool

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Stock Daily

**Sept. 21, 2026 US Stock Brief | Oil Crashes 8%, Nasdaq Hits a Record High** 2026.9.20 US Stock Brief | Riyadh Took a Missile Hit, and Oil Fell 2% Anyway 9.18.2026 US Stock Daily | 10-Year Yield Breaks 5%, Nasdaq Keeps Climbing

Long-form reads

The Sovereign Individual Ch1-6 + Thiel Foreword + Translator's Preface The Sovereign Individual Ch7-11 + Postscript + Appendix Cross-Book Synthesis — Same Technical Facts, Three Political Conclusions

Reusable knowledge

Learn the framework. Use the tool.

Options tutorial

Ch. 1 What Are Options Ch. 2 Contract Elements Ch. 3 Single-Leg Strategies

Tools

macOS Aloud Rust Marklite

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