Finance LTM: the practical guide to exploiting performance over 12 slippery months

Mastering theLTM(Last Twelve Months) offers a real asset to analyze the performance of a company over its last 12 months of activity. It is a beacon appreciated by all those who seek to manage their finances with method and precision. By having the reflex to use thisFinancial ratioIt becomes easier to compare the results of very different companies, or even defend its argument against a banker or investor, without getting lost in technical details. A financial trainer recently referred to the extent to which talking examples make this calculation accessible... Moreover, an entrepreneur, during an audit, may discover trends that he would not have seen otherwise.

Understanding and using the LTM (Last Twelve Months): essential to driving its performance

The LTM, or "Last Twelve Months", has been the key indicator for assessing a company's most recent financial performance. Its simplicity lies in the fact that it synthesizes the results over 12 slippery months, which makes it possible to obtain a photograph useful for comparison, decision-making or valorisation of a company that is a businessman, analyst or management student.

In practice, the LTM is extremely practical when analysing indicators such as turnover, EBITDA or the margin of a company with relative finesse, mitigating seasonal effects or comparing companies with different accounting periods. It is not uncommon for an investor to cite the case of Apple, which posted for the second quarter of 2024 an LTM of381 623 M$a figure that says much more about its dynamics than just an annual or quarterly result.

But on what criteria? What is generally advised? Here's what you can use to apply, calculate and adapt the LTM to your own issues, whether it's a fund raising or reporting to a financial institution.

Definition and differences LTM, TTM, NTM: the concepts to be distinguished

The question comes up regularly: Do LTM, TTM and NTM have the same meaning? In fact, it is worth distinguishing these terms so as not to make a mistake when reporting or evaluating. Several experts stress this clarification from the start of specialised training.

What the LTM covers, and why not confuse

The LTM ("Last Twelve Months") is simply the sum of the performances performed over the last 12 months. TTM for "Trailing Twelve Months" functions as its perfect equivalent, especially in Anglo-Saxon literature.

But we must distinguish NTM ("Next Twelve Months"), which refers to the expected results over the next 12 months. This projection, privileged in market valuation, changes the perspective in depth – one looks in the mirror, the other on the road ahead. The grade is not annoyed: some analysts have one day mistakenly ratio in a negotiation and learning is... Instant!

• LTM: The past 12 months, seen an objective view of the past
• NTM: The 12 months expected, estimated an anticipation for the future

The LTM, according to the main benchmarks, remains a robust reference in transactional contexts (data rooms, acquisition audits or banking negotiations). That you run an SME (turnover LTM : 2 300 K€, EBITDA: 540 K€) or a multinational, it is often recommended to justify the analysis on a LTM basis to ensure comparability and reliability of the diagnosis.

When is the LTM really essential?

Last point to note: the LTM comes out very regularly in multiple situations: mergers and acquisitions, bank reviews, fund raising, consolidated reporting and of course when the results show significant seasonal variations. According to the testimony of an FMVA consultant, many financial analysis certifications highlight this ratio. The comparison between companies in different sectors or with offset tax schedules then becomes much more relevant once the LTM is adjusted. This is also why theEV/EBITDA ratio on LTMis unanimously cited as a market benchmark (a typical SME revolves around10).

Calculation methodology LTM: steps, formulas and pro-process tips

Calculating a LTM is accessible to all provided you follow a precise method without forgetting certain sensitive points (stub period effect, YTD adjustment...). Moreover, serious trainings detail the steps by relying on Excel tools or simulators to avoid frequent errors.

Calculation of turnover LTM, step by step

Let us look more closely: to determine a turnover LTM at 31 March 2024, it is necessary to add the figures of the final quarters (April-June 2023, July-September 2023, October-December 2023, January-March 2024). If a quarter fraction, the famous "stub period", remains outstanding, it is better to adjust with the YTD variant (Year-To-Date).

Concrete example: an SME that closes at 31 December and reports quarterly will see its LTM turnover at 31 March as the addition of the last three quarters closed + the first quarter of the current year. Tip:

• LTM= Total turnover of last 12 months = (turnover Year N-1) + (turnover YTD Year N –turnover YTD Year N-1)

This calculation naturally extends to other ratios: EBITDA, net result or operating margins.

Adapt the calculation in case of tax or seasonal lag

Suppose, for example, that two companies want to compare themselves: if one closure in March and the other in December, it is better to adjust the accounts to have a really parallel basis. In sectors subject to high seasonality (finance, tourism), a well-adjusted LTM will smooth the effects of annual variations, where a single calendar total may be misleading. An expert in the sector reports that many bank negotiators understood the usefulness of the LTM after a few disappointments.

Some users even note that the ratios on LTM help avoid the famous biases in annual totals and offer a significant decline in financial management even if this makes it necessary to anticipate unexplained differences when several entities compare their trajectories.

Business case: Apple, SMEs, benchmarks and current ratios

The issue could not be addressed without concrete figures: sectoral examples provide clarity and reassure the practice of the LTM. Many experts rely on real cases to make their trainings live and relevant.

Apple and SMEs: two concrete examples of LTM

On the multinational side, in the second quarter of 2024 Apple posted LTM sales of381 623 M$. This volume allows an analyst to assess the dynamics over 12 months, without waiting for annual or quarterly data. On the SME side, one usually relies on aLTM of 2,300 K€of turnover andEBITDA at 540 K€, i.e. an EBITDA margin of about 20 percent (23,5 %).

To valorise or compare against a sale or financing, you can quickly benchmark on a related target:25 000 K€LTM revenue,4,500 K€d-EBITDA, margin18 %. Some analysts say that sector structuring via LTM dramatically simplifies strategic reviews.

Enterprise	Turnover LTM	EBITDA LTM	Marge EBITDA
Apple (Q2 2024)	381 623 M$	Not reported here	Not reported here
Standard SME	2 300 K€	540 K€	23,5%
Benchmark sector	25 000 K€	4,500 K€	18%

Adapt your analysis to real context

This is seen in the usages: the ratio EV/EBITDA on LTM (average SME:10) allows for the establishment of instantly comparable valuations between all actors in a sector. When the context or size varies, the LTM is usually the most relevant. An experienced analyst confided that it is difficult to pass through dynamic or changing sectors.

For beginners, use the parameterised indicators and models proposed by institutes such as FMVA or Wharton immediately reassures and marks the complex phases of a first sectoral analysis.

Free tools and resources to calculate or simulate LTM easily

The advantage of specialized platforms is that they have many practical, ready-to-use tools to facilitate your LTM calculations: simulators, Excel models, expert guides and certification training. An IFC trainer sums up the interest: "At each stage, there is available technical support, it would be a shame to deprive."

Templates, simulators and guides to move faster

On Corporate Finance Institute, Wall Street Prep, or TDRgroupe.fr, you can find customizable Excel models, free simulators and downloadable methodological guides to integrate the LTM into your industry reports or analyses, without reinventing the wheel.

• ✅ Try an Excel LTM template that automates calculations
• ✅ Do a test via an LTM simulator online, to save time
• ✅ Consult a checklist of good practices to structure your LTM reporting

The use of these tools is evolving: according to several consultants, it is possible to access sectoral exports (bank, tech...) and updated benchmarks. This enriches the files submitted to the committee and optimizes decision-making. Admittedly, some beginners always wonder about the amount of examples available for free... The most underexploited resource, it seems, remains the checklist, appreciated in audits.

Little trick terrain not to waste time

A reflex recommended by many professionals: systematically archive each LTM reporting over the course of the exercises. This history facilitates a flexible steering and offers an instant view of the trends no one likes to find themselves having to reconstruct evolutions under the pressure of a surprise audit! (It seems obvious but, on the ground, we forget, often to do so.)

FAQ, limitations and vigilance points on the LTM: pros and common traps

Focusing on the LTM without worrying about its subtleties is like navigating without instruments in covered weather: it is better to anticipate the points of attention so as not to be distraught. In FMVA trainings, the discussion starts very quickly on the limits to be monitored and the traps to be avoided.

Recurrent practical issues

Among the most common problems identified in the literature are:

• ✅ Change in fiscal year: adjust data ensures continuity over a period of about 12 months, as recommended by auditors.
• ✅ Marked seasonality: If LTM smoothes curves, it can mask peaks to complete with a quarterly study to refine the diagnosis.
• ✅ Fusion-acquisition or valuation: it is better to justify any reprocessing, provide detailed accounts and never omit annexes: this reassures auditors and avoids bad suspicions.
• ✅ Internationalisation: prudence on currency conversion, standard alignment (IFRS, US GAAP) and consideration of foreign exchange effects on ratios.

Sometimes an experienced auditor notes that a rigorous presentation of LTM reporting is sufficient to validate the credibility of a file in a tight due diligence. Many see it when negotiations suddenly take a more demanding turn.

The real limits of the LTM to know

It can be assumed that the LTM is not free of faults: for example, it may blur a recent inflection (growth or rapid decline). It is also best for sectors such as retail and tourism to complete the LTM diagnosis with a careful reading of post-closure activity. Ratios applied too rigorously, it is sometimes the trap that makes lose in fine analysis! By experimenting, some professionals systematically grade their approach by crossing with other indicators.

LTM training, certification and competence opportunities

The practice of the LTM is now within reach: online modules, validated by Corporate Finance Institute, FMVA, Columbia or Wharton, provide access to the most technical basics and tricks. A FMVA trainer recently compared the acceleration of career paths to a true "competitiveness" on the market.

Why certify or train specifically?

In the recruitment or changing job market, mastering the LTM and its variants (TTM, NTM...) combined with a recognized accreditation often makes the difference instantly. Many professionals report how well-structured training, validated by quizzes or case studies, enhances the confidence of employers or investors.

Several platforms deploy short modules (counting2 to 4 weekson average), punctuated by practical cases, ready-to-use models and evaluations. This is also why existing analysts or students choose this path to boost their CV or application file.

• ✅ Follow a certification session (FMVA, CFI...) to establish your skills
• ✅ Join a sectoral community and exchange benchmarks or feedback
• ✅ Download the certificates and enhance your profile on LinkedIn or in your hiring file

In the field, the network-sharing effect of tricks, access to evolving tools is regularly highlighted by those who have followed these courses: "We don't feel alone anymore, and everything goes much faster." Some testimonies even evoke the unexpected boost during a complex interview or negotiation. Nothing prevents it from making your future endeavours easier, so you can also take advantage of the available media!

Comparisons, benefits and limitations of the LTM vis-à-vis other indicators

The question comes up quite often: LTM or not LTM? It's a bit like choosing between a photo and a video to capture a scene all depends on the lens and the sector analyzed. Specialist trainers stress the importance of targeting the right ratio according to the circumstances.

Why (and how far) prefer LTM?

It is often found that the LTM has a clear advantage when it comes to neutralizing economic effects, comparing several structures or giving investors "real time" visibility. It often does better than annual or quarterly ratios, especially when the context is changing rapidly.

However, this suggests that it does not replace a prospective analysis (NTM) or a multi-year regression. As part of a valuation (M&A, funding), it is recommended that LTM be used for photography, NTM for projection and multi-year analysis to situate the overall trend.

Is this really the perfect ratio? There is no requirement for the unique solution: to cross-check various analyses gives a finer perspective, especially when the objective is to inform strategic decision-making. Financial reporting, in the end, remains an unbalanced sport for those who want to combine relevance and anticipation.