Invest with a System—Not Guesswork.
Written for beginners, experienced investors, and those disappointed by past results, this updated edition of the U.S. and Canadian bestseller Beat the Inefficient Market offers practical, evidence-based methods for investing with greater confidence.
Why This Book Stands Out:
• Practical and Accessible
• Innovative Strategies
• Evidence-Based Investing
This book presents 7 stock-investment systems, progressing from simple, rules-based formulas to more advanced and flexible strategies.
Systems 1–4
• Simple, rules-based formulas
• No investment judgment required
• Historical returns: 7%–15% annually
Systems 5–7
• More advanced, flexible strategies
• Greater use of judgment
• Historical returns: 17% to over 20% annually
Praise for the First Edition:
"Beat the Inefficient Market: Investing in Stocks” by Leo Vian is a five-star masterpiece that deserves a place in every investor's library. Whether you're a novice looking to start your investment journey or an experienced investor seeking to refine your approach, this book is an indispensable resource. Leo Vian's expertise and passion for investing are evident on every page, making this book a must-read for anyone seeking financial prosperity through the stock market. Prepare to be enlightened, inspired, and equipped with the knowledge to navigate the market with confidence and success." - Harvey Stills, investor
Find the system that fits your level—and start building wealth.
System 1: Index Funds
System 2: Beating Index Funds with Index Funds
System 3: Simple Formula
System 4: Advanced Formula
System 5: Formula + Nonfinancial Statements Analysis
System 6: Deep Financial Statements Analysis + Nonfinancial Statements Analysis
System 7: Technical Analysis + Deep Financial Statements Analysis + Nonfinancial Statements Analysis
System One:
The rule that investors should invest in an index fund over a defined minimum period and at a defined frequency, unless they can determine the relative value of the overall stock market.
System Two:
A formula for calculating the investment amount for any given year based on the relative value of the overall stock market, which cannot be determined by price alone.
System Three:
System Four:
System Five:
Use of the formula combined with “non-financial statement analysis” in a prescribed manner.
System Six:
Shortlisting known, meaningful fundamental strategies, clearly explaining them, and combining them into one methodology with additional inputs.
System Seven:
Like System Six, but with the addition of technical analysis.

With an honours degree in Business Administration and Finance, Leo Vian has built a successful career as an entrepreneur, investor, and author. He has more than 20 years of experience investing in securities and has established a consistent track record of strong returns. His expertise in financial analysis and portfolio management, combi
With an honours degree in Business Administration and Finance, Leo Vian has built a successful career as an entrepreneur, investor, and author. He has more than 20 years of experience investing in securities and has established a consistent track record of strong returns. His expertise in financial analysis and portfolio management, combined with a thorough understanding of market trends, has been instrumental in his success.