TTM Trailing Twelve Months Calculator

What is the Trailing Twelve Months (TTM)?

In finance and corporate accounting, the Trailing Twelve Months (TTM) represents the financial data from the immediate past 12 consecutive months. It is widely used by financial analysts, investors, and business leaders to examine recent performance trends without waiting for a company's standard fiscal year-end reports.

TTM metrics—such as TTM Revenue, TTM EBITDA, and TTM Net Income—provide a more current picture of a company's health, helping eliminate seasonal fluctuations by always aggregating a full 12-month period.

How to Calculate TTM

There are two primary methods for calculating TTM metrics depending on the available financial statements:

1. The Quarterly Summation Method

If quarterly financial reports are available, you simply add the most recent four consecutive quarters:

$$\text{TTM} = Q_1 + Q_2 + Q_3 + Q_4$$

2. The Interim Period Adjustment Method

This method is useful when you have the annual report (10-K) for the previous year and the most recent interim quarterly reports (e.g., a 6-month or 9-month report) for the current and prior years:

$$\text{TTM} = \text{Full Year Value} + \text{Current Interim Value} - \text{Prior Year Interim Value}$$

For example, if you are in Q2 2026, you take the Full Year 2025 results, add the first 6 months of 2026, and subtract the first 6 months of 2025. This yields the exact 12-month period ending in Q2 2026.

TTM Valuation Ratios

TTM values are critical for calculating standard stock valuation metrics:

TTM Earnings Per Share (EPS):
$$\text{TTM EPS} = \frac{\text{TTM Net Income}}{\text{Weighted Shares Outstanding}}$$
TTM Price-to-Earnings (P/E) Ratio:
$$\text{TTM P/E Ratio} = \frac{\text{Current Share Price}}{\text{TTM EPS}}$$

Frequently Asked Questions

Why is TTM better than looking at fiscal year-end data?

Fiscal year-end reports can be up to 11 months old by the time a new report is released. TTM provides a rolling 12-month window that incorporates the most recent quarters, making it highly relevant for investment analysis and valuation.

How does TTM help smooth out seasonality?

Many businesses have seasonal revenue (e.g., retailers making most sales in Q4). Looking at single quarters can be misleading, but TTM always aggregates all four seasons, providing a smoothed, comparable annualized trend.

What does TTM stand for in a P/E ratio?

In a TTM P/E ratio, it means the P/E is calculated using the company's actual earnings from the last 12 months, rather than forward-looking projections (Forward P/E) or historical fiscal year earnings (Trailing P/E).

Is TTM the same as Run Rate?

No. TTM is based on actual historical data from the past 12 months. Run rate projects future performance by annualizing a shorter recent period (e.g., multiplying last month's revenue by 12).

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