The Bureau of Historic Losses · Counterfactual Division
What if you'd bought ResMed in 2015?
Sleep had quietly become big business, and ResMed was the global pick-and-shovel play on a fattening, ageing, under-diagnosed world. The shares looked fully priced — the recurring complaint of anyone who has ever looked at ResMed.
$100 on 2015-01-01, worth today
A$427
As of 2026-06-12, $100 of ResMed bought at 2015's open (A$6.49) is worth A$427 — 4.27×.
total return · dividends reinvested · AUD
How much would $100 of ResMed bought in 2015 be worth today?
| You'd have put in | You'd have now | Multiple |
|---|---|---|
| A$100 | A$427 | 4.27× |
| A$1,000 | A$4,274 | 4.27× |
| A$10,000 | A$42,743 | 4.27× |
Lump sum on the year's first trading day, total return (dividends reinvested, splits adjusted), valued at the latest close. Past performance isn't a promise — it's a taunt.
What did ResMed do in 2015?
Opened
A$6.49
2015-01-01
Peaked
A$9.21
2015-04-13
Bottomed
A$6.32
2015-05-14
Closed
A$7.02
2015-12-30
Levels are dividend-adjusted, so historical figures look lower than the headline price of the day — that's the total-return lens, and it's the honest one.
Would steady buying have beaten going all in?
A$59,800 deployed as $100 a week from 2015-01-01, under four temperaments — same money, different nerves.
| All in on day one | A$255,602 |
| Steady weekly buys | A$105,167 |
| Sold dips, rebought rallies | A$74,022 |
| Traded it perfectly | A$169,199 |
“Traded it perfectly” requires knowing the future. Nobody knew the future.
The same $1,000, elsewhere
$1,000 at 2015's open, each valued at the latest close. Hindsight remains undefeated.
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