What if the best investment strategy is to do as little as possible? It sounds almost too simple — but research and historical data show that passive investing beats most active strategies over time.
Passive investing is not about being lazy. It is about understanding what the market actually is, and using it to your advantage.
What is passive investing?
Passive investing means you invest in the entire market — or large parts of it — via an index fund, instead of trying to pick winning individual stocks. You accept the market is return instead of trying to do better.
The philosophy is built on one insight: markets are highly efficient. All known information about a company is already reflected in its price. It is therefore extremely difficult — even for professionals — to consistently find mispriced stocks.
Efficient market hypothesis: Developed by economist Eugene Fama — the theory that stock prices always reflect all available information, making it impossible to consistently beat the market over time.
Active vs. passive — what does the research show?
The SPIVA report (S&P Indices Versus Active) measures each year how many active funds beat their benchmark index. The result is consistent:
- Over 1 year: approximately 60–70% of active funds underperform the index
- Over 10 years: approximately 85–90% underperform
- Over 20 years: over 90% underperform
The reason is simple: costs. An active fund with 1.5% annual cost must beat the market by 1.5% just to deliver the same return as an index fund. Very few manage this over time.
Survivorship bias: Funds that perform poorly are closed or merged. Statistics only include funds that still exist — which makes active funds look better than they are.
The pioneers of passive investing
John Bogle
Founder of Vanguard and inventor of the first index fund for private investors in 1976. He called it "the most sensible investment choice most people can ever make." Wall Street hated him — they called it "Bogle is folly." Today Vanguard manages over 8 trillion dollars.
Eugene Fama
Nobel Prize-winning economist who developed the efficient market hypothesis — the theoretical foundation for passive investing.
Warren Buffett
Ironically, the world is most famous active investor recommends passive investing for ordinary people. In his will he has instructions that the family inheritance should be placed 90% in a low-cost S&P 500 index fund.
The advantages of passive investing
✅ Advantages
- Low costs — index funds typically cost 0.1–0.3% per year
- Broad diversification — owns hundreds or thousands of companies
- Predictable returns — you get what the market gives
- Time-saving — no analysis, no monitoring
- Tax-efficient — little trading means few realised gains
- Psychologically simple — no temptation to time the market
⚠️ Disadvantages
- You will never beat the market — you always get average returns
- You also own the poor companies in the index
- Concentration risk in large indices — the S&P 500 is dominated by a few technology companies
- No protection in a crash — the index falls as much as the market
How to get started
- Open a share savings account (ASK) at Nordnet or similar
- Choose a global index fund — for example KLP AksjeVerden Indeks or Storebrand Indeks — Alle Markeder
- Set up monthly savings — a fixed amount automatically each month
- Reinvest dividends — let compound interest work for you
- Do not touch it — hold through ups and downs
The simple portfolio: One global index fund + monthly savings + long time horizon = a strategy that beats the majority of professional managers over 20 years.
"My ships come in over a calm sea, under grace in perfect ways."
— Florence Scovel Shinn
Rule of thumb: Passive investing is not giving up — it is realising that the smartest move is often to do nothing. Buy the market, hold it for a long time, and let compound interest do the work.