About Compound Lane

Compound Lane is plain-English investing education for people with money at stake — and the math to back it up.

What we do

We explain beginner index investing — index funds, ETFs, 401(k)s, IRAs, compound interest, and fees — in plain language, with every number sourced and every calculation shown. Our promise: "The math behind it, step by step, every number sourced."

Our sourcing standard

Every figure on this site carries a citation to a primary source: fund prospectuses, IRS publications, SEC filings, exchange data. Before anything publishes, every number is re-derived and every claim is checked. We never invent screenshots, balances, or returns. Read our full methodology.

Education, not advice

Everything here is education. We explain how mechanisms work — how a 401(k) match works, how an expense ratio compounds — we never tell you what to buy. Investing involves risk, including loss of principal, and past performance does not guarantee future results. See our disclosure.

Contact

Questions, corrections, or feedback? Email us at enquiry.states@gmail.com — if we got a number wrong, we want to fix it and learn from it.