📅 TTM Calculator – Trailing Twelve Months
Calculate a Trailing Twelve Months (TTM) financial figure — a rolling annual number that stays current between annual reports.
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What is TTM?
Trailing Twelve Months (TTM) is a rolling twelve-month figure used in financial analysis to represent the most recent full year of performance, updated with each new reporting period rather than waiting for a full annual report.
The formula
TTM = Last Full Fiscal Year Total − Same Period Last Year (YTD) + Current Year-to-Date. This effectively swaps out the oldest partial-year period for the most recent one, keeping the twelve-month window current.
This calculator is for general financial-analysis education.
Last reviewed August 2026