D
Daisy
— The Patient One —
On the first of every month, $1,000 automatically buys Vanguard's S&P 500 fund. She does not check the news. She does not check her balance.
From 1976 to 2025, three people each set aside twelve thousand dollars a year for the S&P 500. They differed only in when they pressed Buy.
On the first of every month, $1,000 automatically buys Vanguard's S&P 500 fund. She does not check the news. She does not check her balance.
Once a year, $12,000 in a single shot, always landing on the year's lowest closing price. An impossible feat — and yet she pulls it off, every year, for fifty.
Once a year, $12,000 in a single shot, always landing on the year's highest closing price. Whatever Lucy is, Ben is the mirror. Buy at the top. Every time.
| Investor | Contributed | Portfolio | Multiple | IRR |
|---|---|---|---|---|
| Daisy | $0 | $0 | — | — |
| Lucy | $0 | $0 | — | — |
| Ben | $0 | $0 | — | — |
$600,000 Each contributed the same. Each waited fifty years. Behold the spread.
| Investor | Strategy | Ending Value | Multiple | IRR |
|---|---|---|---|---|
| Lucy | Bottom-tick of every year | — | — | — |
| Daisy | Monthly auto-invest, ignore news | — | — | — |
| Ben | Top-tick of every year | — | — | — |