The Investor Codex
Knowledge Is Capital.Access Should Be Free.
Independent investment research, financial intelligence, and practical tools for entrepreneurs and investors. Open to everyone.
Independent research
Original analysis on markets, private equity, real estate and business strategy — authored and credited.
For builders of capital
Written for entrepreneurs, investors, finance students and anyone allocating capital.
Free. Always.
No paywalls, no courses, no subscriptions. Read everything without registering.
Explore the Codex
Six disciplines. One open library.
Start wherever your capital — or your curiosity — lives.
Investing & Capital Allocation
Public markets, intrinsic value and how great allocators deploy every dollar.
EXPLOREPrivate Equity & Business
Buyouts, acquisitions and the mechanics of owning private companies.
EXPLOREReal Estate & Infrastructure
Income, cap rates and the long-lived assets that power economies.
EXPLOREFinancial Optimization
Credit cards, financing, vehicles and tax efficiency for business owners.
EXPLOREModels & Tools
Free calculators for compounding, returns, cap rates and valuation.
EXPLOREKnowledge Library
Original TIC summaries of the books that shaped serious investing.
EXPLOREFeatured Research
Original work, openly published.
Sample contentFeatured · Capital Allocation
Free accessThe Mathematics of Compounding
Why time, not brilliance, does most of the work in long-term wealth creation.
Sample contentCapital Allocation
Free accessCapital Allocation: The Five Choices of Every CEO
Reinvest, acquire, repay debt, pay dividends or repurchase shares. A framework for judging management by what it does with the cash.
Sample contentPrivate Equity
Free accessHow Leveraged Buyouts Create Returns
A hypothetical LBO walks through the three levers of private equity returns and why leverage magnifies outcomes in both directions.
Sample contentBusiness Acquisitions
Free accessBuying a Small Business: Valuation Basics
How small private businesses are commonly valued, what the normalisation adjustments really mean, and where buyers most often overpay.
Documentary Series
TIC Success Stories
The decisions behind extraordinary businesses.
Research-driven documentaries on founders, investors and business empires — the capital allocation, strategy and economics behind them.
Business Empires
Rockefeller: The Architecture of an Empire
How Standard Oil turned a chaotic industry into an integrated system.
Technology Companies
Google: The Business Behind Search
How a better search engine became one of the most profitable advertising businesses ever built.
Legendary Investors
Warren Buffett: The Power of Compounding
From a struggling textile mill to a conglomerate built on reinvested cash.
Models & Tools
Instruments for clear thinking.
Working calculators with transparent formulas. Free, private and run in your browser.
Compound Interest Calculator
Project growth with contributions and compounding frequency.
OPENInvestment Return Calculator
Annualised return (CAGR) between any two values.
OPENBusiness Valuation (DCF)
Value a business from its future free cash flows.
OPENCap Rate & NOI Calculator
Price real estate income and test cap rate sensitivity.
OPENKnowledge Library
A private investment library, opened to the public.
Original TIC summaries of the books that shaped serious investing — free to read and download.
BOOK SUMMARY SERIES | NO. 01
The Intelligent Investor
Benjamin Graham | 1949
The 8 Fundamental Lessons | Key Phrases | Comprehension Quiz
theinvestorcodex.com
Value Investing
The Intelligent Investor
Benjamin Graham
BOOK SUMMARY SERIES | NO. 02
Margin of Safety
Seth Klarman | 1991
The 8 Fundamental Lessons | Key Phrases | Comprehension Quiz
theinvestorcodex.com
Value Investing
Margin of Safety
Seth Klarman
BOOK SUMMARY SERIES | NO. 03
The Little Book That Beats the Market
Joel Greenblatt | 2005
The 8 Fundamental Lessons | Key Phrases | Comprehension Quiz
theinvestorcodex.com
Quantitative Investing
The Little Book That Beats the Market
Joel Greenblatt