How it is worked out
Market cap divided by revenue over the last twelve months (the same as price over revenue per share).
How to read it
- It helps when a company has no earnings yet, because it has revenue.
- It says little without the margin: a dollar of revenue is worth far more at a software company with a 30% net margin than at a supermarket chain with 2%. That is why, for a profitable company, our analyses scale the sales multiple to its own net margin.
- It ignores debt. EV/Sales takes it into account.
Example
Market cap $10bn, revenue $4bn: a P/S of 2.5.