The 20-Decision Vault

Think Long · Bet Right · Hold Firm
Inspired by Buffett's Punch Card Rule · Zero Leverage Edition

Warren Buffett once said: imagine you only get 20 investment decisions in your entire lifetime. Not per year — total. Every time you bought or sold, a hole was punched in your card. No refills.

This tool makes that thought experiment real. Each circle below is one punch. Add a new investment, write your thesis, and watch your remaining punches shrink. The discipline comes from knowing the card is finite. Click "Add New Investment" below to use your first punch →

20
lifetime slots
total, ever
20%
Buffett's annual CAGR
over 58 years
25×
Coca-Cola return
bought 1988, held 35yr
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🏆 Hall of Fame — What a Lifetime Decision Actually Looks Like

Every one of these was controversial at the time. All were held for decades. No stop-losses.

AnchorConsumer25× Return
Coca-Cola $KO
Warren Buffett · 1988 · Cost $1.3B
25×
"A business that can raise prices without losing customers." Bought the year after Black Monday. Still in Berkshire's portfolio 35+ years later.
AnchorFinancial100× Return
American Express $AXP
Warren Buffett · 1964 · Cost $13M
100×+
Bought during the salad oil scandal when the stock fell 50%. The core brand franchise was untouched. Held for 60 years and still counting.
CoreConsumer80× Return
See's Candies
Buffett & Munger · 1972 · Cost $25M
80×
Munger convinced Buffett to pay up for quality. "The best business we ever bought." Generated $2B+ cumulative earnings — and taught them both what a moat really means.
CoreFinancial1000× Return
GEICO Insurance
Warren Buffett · 1951 · Cost $10,282
1000×+
"I put 65% of my net worth into it at age 20." Rode a bus to meet the CFO. Took 44 years to fully acquire the company. The original $10K became one of Berkshire's pillars.
AnchorTechnology3× Return
Apple $AAPL
Warren Buffett · 2016 · Cost $36B
3×+
"Apple is a consumer products company, not a tech company." Became Berkshire's largest single holding. Buffett called it the best business in the world — and bought more every year through 2018.
CoreMedia100× Return
Washington Post $WPO
Warren Buffett · 1973 · Cost $11M
100×
Bought during Watergate when the stock had already fallen 50%. The newspaper's franchise was obvious — the political noise was temporary. A textbook fear/greed reversal.

⏰ Verification Alarms — give each logic-breaker a deadline

Due DateStockWhat to VerifyStatus

Buy Manual

Sell Manual

📊 Trade Log — every trade needs a written reason

DateActionStockSharesPriceReason

📰 News Log — important signals about the company and industry

DateStockNews / SignalLink
One card · Twenty holes · One lifetime
Buy right, buy enough, hold firm — discipline before returns, honesty before discipline
Dedicated to the investors who lit the way

📚 The books behind this framework

📘
The Intelligent Investor
Benjamin Graham
Get on Amazon →
📙
Poor Charlie's Almanack
Charlie Munger
Get on Amazon →
📗
One Up on Wall Street
Peter Lynch
Get on Amazon →
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