How far below value is the price, and what price would give you the cushion you want?
Example inputs, not real data
Margin of safety today
20%
For a 25% margin, the price would need to be at or below $75.00.
The margin protects you from your own estimate being wrong. The less predictable the business, the bigger the margin worth insisting on.
Benjamin Graham called margin of safety the central concept of investment, and Buffett has repeated the point for decades. You estimate what a business is worth, accept that the estimate could be wrong, and only buy when the price is far enough below it that a mistake doesn't become a permanent loss.
It depends on how confident you can be in the estimate. A stable, predictable business might justify a smaller margin; a cyclical or fast-changing one needs a bigger one. Small investors buying obscure companies, as Buffett did in his partnership years, often insisted on very large margins because the information was thin. In Replicly, your lens sets the margin: 40% for the partnership approach, 25% for quality compounders and 20% at Berkshire scale, adjusted for how you handle falls.
A wide margin doesn't mean the price will rise soon. It means that if you're wrong about value, you're less likely to be badly wrong about the outcome.