A classic study found that how you split your money across asset classes — not clever stock-picking — explained the large majority of how a portfolio’s returns moved over time.[1]
- Diversify across things that move differently — that’s the closest thing to a free lunch.
- Pick a risk level you can actually live through, and size positions with care.
- Cut costs ruthlessly; fees compound against you.
- Rebalance to stay on plan and quietly buy low, sell high.
- Expect fat tails and bad years — keep a cushion.
- Beat your own biases: write a plan and check less often.
Like staying healthy. No magic pill — just sleep, food, and exercise, done consistently. Boring, repeatable habits beat flashy shortcuts.
That’s the whole game: a sensible, diversified plan you can stick with beats a brilliant plan you’ll abandon in the first storm.
Where these numbers come from
Every Finisdom tool — the backtester, the frontier, correlations, the journal — exists to help you live out these habits, not to promise winners.
Build and stress-test your planPart of the Finisdom app — sign in to open it.