finance

Finance

How the economy, companies and prices work, from first principles, with real numbers.

Explains only: no tips, no targets, no positions.

1 notebook7 to read

NASDAQ Composite, daily closes to 30 Sep 2026 · FRED

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Explain the price of time

01 notebooks

Notebooks

Long, ordered, built one note at a time. Start anywhere a note is written.

More finance notebooks join here when they are published.

02 posts

Posts

Every finance piece that reads on its own, newest first. A note needs no notebook before it.

Every note is also on the blog, in the order it was written.the log on finance/