What is 10-10 rule?
- The 10-10 rule is a commitment test: if you aren't ready to own for 10 years, you shouldn't own for 10 minutes.
- It stops you from buying on hype or selling on fear, because you've already decided your holding period.
- Think of every stock as a business partner. You wouldn't ditch a good partner after a bad quarter.
- The rule filters out short-term noise and keeps your portfolio focused on long-term growth.
- Apply it before every purchase. Ask yourself: would I be happy holding this for a decade? If no, walk away.
What is the 10-10 rule?
The 10-10 rule is a test for owning any stock long-term, and it is brutally simple. If you would not own for 10 years, do not own for 10 minutes. That one sentence separates real owners from speculators.
It is Warren Buffett's favorite holding period made practical. Forever becomes a concrete decade you can judge a purchase against, giving you a number instead of a vague hope that you will hold on.
The rule separates owners from speculators. It forces you to judge a business, not the ticker, and to care about cash flows and moats instead of this week's price move.
How does the 10-10 rule work?
Before you click buy, ask one question: would I hold this through a full decade? If the answer is no, the price does not matter. It works on the sell side too: bought with a 10-year horizon, a bad quarter is noise, not a reason to sell.
Why does the rule exist?
Most investors lose money because they trade too often, buying high on excitement and selling low on fear. A decade-long commitment stops the churn and puts time on your side.
Taxes pile on short-term trades at ordinary income rates, and every buy and sell chips at returns through commissions and spreads. Holding for years cuts that drag and lets compounding do the work.
The 10-10 rule in practice
Treat every stock as a business partner. You would not dump a partner because of one rough quarter, so do not abandon a solid business over a single weak earnings report.
Take a solid consumer goods company. You buy it, and it dips. With a 10-year frame you hold, because the business is still compounding and the dip is only noise on the way to a decade's growth.
Does the rule test your temperament?
A decade includes more than one crash. The rule asks whether you can keep your seat when the market takes a third of your money and does not return for years. If that question makes you flinch, the business is too risky for you.
Most people overestimate their own resolve. They buy for ten years and sell on the first dip, because they never test the plan against fear. Running the 10-10 rule before you buy forces you to admit whether you can actually hold, not just whether you want the upside.
When the rule does not apply
The rule fits businesses whose economics you can judge across a decade. A fast-changing industry or a turnaround play may not reward a fixed ten-year commitment, because you cannot see the destination that far out.
It also sits differently with index funds and cash. A broad fund lets you set a long horizon and mostly stay put, while money you may need soon should not carry a decade of market risk. Match the rule to the asset.
Where does the 10-10 rule come from?
The 10-10 rule comes from Warren Buffett, who said he would not own a stock for 10 minutes if he was not willing to own it for 10 years. It turns his famous line about a forever holding period into a question you can actually answer.
Read the rule as a filter you run before you buy, not as a vow to hold forever. It answers one question: is this business good enough to deserve a decade of your money? It does not promise the business will stay good.
The honest version accepts that great businesses can turn bad. If the moat erodes or the numbers keep falling, a decades-old belief does not excuse holding a loser. The rule keeps you patient, not blind.
Most harm comes from buying what you would never hold, on a story you would never trust from a stranger. The 10-10 rule stops that at the door. By the time you own it, you have already chosen to live with it for a decade.
Is the 10-10 rule about something else?
The 10-10 rule has an identity problem. Search the term and you will find a military divorce rule and a life-decision framework that share the name, so know which one you are reading before you act on it.
The most common is federal law. Under 10 U.S.C. Section 1408, a former spouse of a service member can get retired military pay sent directly if the marriage lasted at least ten years and overlapped ten years of creditable service. That rule settles pensions, not stock portfolios.
Another is a personal tool from author Suzy Welch. It asks how you will feel about a decision in ten minutes, ten months, and ten years, to slow down impulsive choices. It is wisdom for daily life, not a test for owning a business.
This article is about the investing version tied to Buffett: own nothing for ten minutes you would not own for ten years. The name is crowded. The question you answer before you buy decides which rule you are actually applying.