VOL. XCIV, NO. 247

BOOK BREAKDOWN

NO ADVICE

Wednesday, January 14, 2026

Beginner · 2017

The Little Book of Common Sense Investing

by John C. Bogle · Evergreen

Own the whole market through low-cost index funds, minimize fees and taxes, and stay the course for decades.

Level

Beginner

Strategies

3 types

Frameworks

5 frameworks

Rating

4.7

Target Audience

Ideal Reader

  • Anyone who wants a default, high-probability investing plan
  • People who keep getting tempted by stock picking, hot funds, or market timing
  • Investors who want a clear explanation of why costs and turnover are so destructive
  • DIY investors building a simple long-term portfolio (401k/IRA/brokerage)

May Not Suit

  • Active traders looking for tactics, setups, or short-term edges
  • Readers who want deep security analysis (accounting/valuation) for stock picking
  • People who already fully buy indexing and only need implementation details

Investor Fit

StrategyPortfolio Management · Quantitative · Behavioral Finance
Time HorizonLong-term (5+ years)
Asset FocusEquities · Fixed Income · Multi-Asset
Math LevelBasic Arithmetic
PrerequisitesUnderstands what stocks, bonds, and mutual funds/ETFs are · Comfortable with basic percentages and compounding

Key Learnings

  • 1Trying to beat the market is a low-odds game for most investors; costs make it worse
  • 2Broad-market indexing captures market returns with minimal friction (fees, turnover, taxes)
  • 3Investment costs compound against you over decades; small fee differences become huge wealth gaps
  • 4Behavior matters: frequent trading and performance-chasing are self-inflicted damage
  • 5Simplicity is a feature: fewer moving parts makes it easier to stick with the plan
  • 6Set rational return expectations instead of assuming recent returns will continue
  • 7Asset allocation (stocks vs bonds) and rebalancing drive outcomes more than fund-hopping
  • 8Taxes are costs too; tax efficiency and turnover matter
  • 9Not all "index-like" products are good: some are expensive, gimmicky, or encourage trading
  • 10In the long run, business reality (dividends + earnings growth) dominates market noise

Frameworks (5)

Formulas (4)

Case Studies (3)

portfolio

High-cost active fund vs low-cost index fund

Takeaway

Even if gross performance is similar, ongoing costs compound into a huge long-term performance gap.

portfolio

Chasing last year's best fund

Takeaway

Switching to whatever just worked often locks in buying high and selling low.

market

Index funds that promise to beat the market

Takeaway

Many enhanced index products raise complexity and costs while weakening the original indexing advantage.

Notable Quotes

Don't look for the needle in the haystack. Just buy the haystack!

Own the whole market via broad index funds instead of trying to pick winners.

Stay the course. No matter what happens stick to your program.

The strategy only works if you can hold it through crashes and euphoria.

In investing, you get what you don't pay for.

Costs are controllable; minimizing them is a durable edge.

Mental Models

  • Buy the haystack (broad market ownership) instead of hunting needles (individual winners)
  • The tyranny of compounding costs
  • A 'winner's game' becomes a 'loser's game' once costs and bad behavior are added
  • Business reality vs market expectations
  • Reversion to the mean (especially in valuation and expected returns)
  • Stay the course (pre-commitment beats prediction)
  • Control what you can: costs, taxes, diversification, and behavior

Key Terms

Index fund
A fund designed to track a market index by holding a broad basket of securities.
Expense ratio
Annual fund operating cost charged as a percentage of assets; a direct drag on returns.
Turnover
How much a fund trades its holdings; often increases taxes and transaction costs.
Tax drag
Return lost to taxes from distributions and realized gains (often worsened by turnover).
Tracking difference
How much a fund lags its index in practice (fees + trading frictions + cash drag).

+1 more terms in book

Limitations & Caveats

Keep in mind

  • Does not teach security selection or valuation (it's intentionally anti-stock-picking)
  • Some discussions and data tables age as markets and products evolve
  • Less useful if you are evaluating niche active strategies with real constraints (capacity, illiquidity) and a proven edge
  • Does not fully solve complex real-life planning (liabilities, pensions, business ownership, concentrated stock)

Reading Guide

Priority Reading

  1. Why indexing works (and why most active strategies lose after costs)
  2. The compounding impact of costs and turnover
  3. Taxes as a cost
  4. Asset allocation (stocks vs bonds) and staying disciplined
  5. ETFs and 'index funds that promise to beat the market' (gimmick filter)

Optional Sections

  • Dense historical performance tables if you only want principles
  • Very edition-specific market commentary

Ratings

Rigor
4
Practicality
5
Readability
5
Originality
4
Signal To Noise
5
Longevity
5

Concept Tags

indexingbuy_the_haystacklow_costexpense_ratioturnovertax_efficiencytracking_differencediversificationasset_allocationrebalancingstay_the_coursebuy_and_holdexpected_returnssmart_betaetf

Ready to apply these frameworks?

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