What Is TTM (Trailing Twelve Months)?
TTM stands for Trailing Twelve Months. It's the sum of a company's last four reported quarters, giving a rolling one-year figure that's always up to date — without waiting for the official annual result.
Why TTM exists
A company's annual results can be up to a year stale by the time you read them. TTM solves that: by adding the most recent four quarters, you get a full-year picture that refreshes every quarter. It smooths out seasonality (which a single quarter can't) while staying current.
TTM and the P/E ratio
The standard current P/E ratio uses TTM EPS — today's price divided by the trailing-twelve-month earnings per share. That's why the P/E can move even when the price is flat: a new quarterly result rolls into the TTM window.
The consolidation catch
A valid TTM must use four consecutive quarters on the same consolidation basis. Mixing consolidated and standalone quarters produces a meaningless total. Our metrics build the TTM window from same-basis quarters for exactly this reason.