What is LTM?
– Last 12 Months (LTM), also called Trailing Twelve Months (TTM), is the most recent 12-month period used to measure a company’s financial performance. Rather than relying strictly on a company’s most recent fiscal year, LTM captures the most up-to-date full-year picture by rolling forward as new quarterly or monthly data become available.
– Typical LTM metrics: revenue (LTM Revenue), earnings (LTM Net Income or LTM EPS), EBITDA, cash flow, dividend yield for the past 12 months, and many ratios derived from those figures (P/E TTM, EV/EBITDA LTM, D/E LTM, etc.).
Why analysts use LTM
– More timely: reflects the company’s most recent performance and excludes older, potentially irrelevant periods.
– Seasonality coverage: a 12‑month span smooths seasonal swings but still captures recent trends.
– Comparability: common basis for comparing companies that report at different fiscal year-ends.
– Practical for valuation and transaction work: buyers and investors prefer current run-rate metrics when valuing firms or assessing creditworthiness.
Basic ways to compute LTM
1. If you have four most recent quarters:
• LTM = sum of the four most recent quarterly results (e.g., revenues from Q4, Q3, Q2, Q1).
2. When you have the last full fiscal year plus one or more interim quarters:
• LTM = Last fiscal year + Most recent interim period(s) − Corresponding interim period(s) from the prior fiscal year.
• Example: If you have FY2024 (ending Dec 31) and Q1 2025 results, then LTM = FY2024 + Q1 2025 − Q1 2024.
3. From rolling monthly data:
• LTM = sum of the last 12 months’ monthly figures (useful for metrics like monthly revenue).
Simple numerical example
– Suppose the four most recent quarterly revenues are: Q1 = 28, Q2 = 30, Q3 = 26, Q4 = 32 (all numbers in millions).
– LTM Revenue = 28 + 30 + 26 + 32 = 116 million.
How to use LTM in ratios and valuation
– P/E (TTM) = Current Market Price per Share / EPS (LTM)
– EV/EBITDA (LTM) = Enterprise Value / EBITDA (LTM)
– Dividend Yield (LTM) = Dividends paid over the last 12 months / Current Price
– Debt ratios: use LTM EBITDA or LTM operating cash flow as the denominator for leverage or coverage analysis.
Practical step-by-step process for calculating LTM for an analysis
1. Gather data:
• Obtain the most recent quarterly and annual financial statements (income statement, cash flow, balance sheet if needed).
2. Decide the metric(s):
• Revenue, net income, EBITDA, dividends, free cash flow, etc.
3. Compute raw LTM:
• Use one of the basic formulas above (four most recent quarters, or FY + interim − prior corresponding interim).
4. Adjust for one-time items:
• Remove or normalize nonrecurring gains/losses, extraordinary items, large restructurings, litigation settlements, or COVID-related government grants if you want a “normalized” LTM.
5. Adjust for acquisitions/divestitures and currency:
• Pro forma the LTM for M&A activity that materially changes the run-rate (add acquired company results for the relevant period, subtract disposed assets). Convert foreign currency results consistently.
6. Check seasonality and trends:
• Compare the LTM figure to prior LTM periods, annual results, and recent quarter-over-quarter trends to ensure it’s representative.
7. Document assumptions:
• Note any adjustments, time periods, and sources so others can replicate the LTM.
Common uses and scenarios
– Valuation comparables (comps): use LTM multiples for P/E, EV/EBITDA to compare peers.
– M&A due diligence: acquirers often prefer LTM to fiscal-year results to value current performance.
– Credit analysis: lenders may use LTM EBITDA or FCF for covenant tests and leverage ratios.
– Dividend yield reporting: LTM dividend yield shows cash returned to shareholders over the last 12 months (contrasted with SEC yield in funds, which uses a standard methodology).
Limitations and pitfalls
– Short-term distortions: although LTM smooths seasonality, it can still be skewed by recent one-off events.
– Accounting changes: changes in accounting policy year-to-year can make LTM inconsistent unless restated.
– M&A noise: an acquisition in the last 12 months can make LTM less comparable to peers unless you normalize.
– Not predictive: LTM is backward-looking. For forward valuation, also consider forward 12 months (F12M) / consensus estimates and management guidance.
Best practices
– Use LTM and forward measures together: compare LTM to next-twelve-months (NTM) or fiscal-year estimates to see momentum and expectations.
– Reconcile to company filings: ensure LTM derivations align with footnotes and management disclosures.
– Apply consistent adjustments across comparable firms when comparing peers.
– Keep a rolling LTM series (quarterly updates) to track trends.
Quick reference formulas
– LTM (sum of quarters) = Q1 + Q2 + Q3 + Q4 (most recent four quarters)
– LTM (using FY + interim) = FY (last fiscal year) + Latest interim(s) − Same interim(s) from prior fiscal year
Checklist before using LTM in analysis
– Have you used the most recent four quarters or properly adjusted FY+interim?
– Have you removed or explained nonrecurring items?
– Are M&A and disposals handled pro forma if necessary?
– Have you checked currency and accounting consistency?
– Is the metric still relevant for the question (valuation, credit, dividends)?
Further reading / sources
– Investopedia: “Last 12 Months (LTM)”
– For dividend-yield reporting methodology, see U.S. Securities and Exchange Commission (SEC) guidance on yield disclosures (SEC website and fund reporting rules).
– Walk through an LTM calculation using a real company’s recent filings,
– Produce an Excel-ready LTM template,
– Show how to adjust LTM for a recent acquisition or a one-time gain.