The Lab
Practical articles for consequential decisions.
The NJL Design Lab blog publishes source-backed guides, models, and operating systems for financial independence, investing, real estate, family finance, AI, and the non-money side of life.
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Investing
Options Trading 101: What Beginners Need to Know Before Selling a Put
A beginner-friendly guide to selling puts, assignment, cash-secured puts, the wheel strategy, and covered calls — with clear examples, risk-first explanations, official references, and pre-trade checklists.
Investing
Options Greeks 201: Delta, Theta, and IV Before You Sell Premium
A practical 201 guide to reading Delta, Theta, and IV before selling premium, with a 4-point pre-trade checklist.