How to Calendarize Financials for Trading Comps Interviews

Trading comps die when peer earnings sit on different clocks. One company reports a June fiscal year, another is calendar December, and your "NTM EBITDA" mix is garbage. Calendarizing is the cleanup step: restating periods so multiples compare the same stretch of time. Interviews love it because it is mechanical, easy to mess up, and shows you have actually built a comps deck.

The 30-second answer

"Calendarizing lines up companies that have different fiscal year ends so LTM or FY metrics cover comparable months. For LTM I stitch the last four reported quarters. When I need a calendar year and the fiscal year ends in June, I combine half of one FY with half of the next, or use quarterly data to build January through December. The goal is consistent period definitions across the peer set before I compute EV / EBITDA."

Why it matters

LTM from quarters (most common)

LTM EBITDA = Q1 + Q2 + Q3 + Q4 (most recent four reported quarters)

If you only have semi-annuals, sum the last two halves. If you have FY and a stub, see below.

Fiscal year to calendar year (classic drill)

Company FY ends June 30. You want Calendar 2025 EBITDA.

Using halves (interview-friendly):

H2 FY2025 (Jul-Dec 2024)   +  H1 FY2026 (Jan-Jun 2025)  ≈  Calendar 2025

Careful: label the fiscal periods correctly. Drawing a timeline on scratch paper prevents off-by-one year errors.

Using quarters is cleaner:

Calendar 2025 = Q3 FY25 + Q4 FY25 + Q1 FY26 + Q2 FY26
(if FY ends June: Q3/Q4 are Jul-Dec, Q1/Q2 are Jan-Jun)

Stub period method (annual + partial)

Sometimes you only get:

• Full FY2024
• Six months of FY2025

Rough LTM-style stitch (know it is approximate):

LTM ≈ FY2024 − first 6 months of FY2024 + first 6 months of FY2025

Only works if you can isolate the overlapping stub. If you cannot, say you need quarterly data and do not invent precision.

Worked numbers

Peer has FYE June. Quarters of EBITDA:

Calendar 2025 EBITDA = 18 + 21 + 23 + (Q4 FY26 not listed yet).

If "today" is early Oct 2025 and Q3 FY26 just printed, LTM = 22 + 18 + 21 + 23 = 84.

NTM and calendarization

NTM means next twelve months from the valuation date, often from analyst estimates. Calendarizing NTM still requires that every peer's forward estimate covers a comparable window. If one broker gives FY (June) and another gives calendar, convert or mark the cell as non-comparable.

What interviewers listen for

1. You know LTM ≠ FY when FYE is not December
2. You can calendarize with quarters or explain the half-year stitch
3. You keep EV and earnings as-of dates honest
4. You would rather disclose a limitation than fake a number
5. You match the EV as-of date to the earnings window you claim, not to whatever CapIQ default printed

Practice drill (12 minutes)

Pick two public peers with different FYEs. Write Calendar Year and LTM EBITDA labels for each without looking at a banker’s book. Check against filings. Note where a lazy FY pull would have mis-ranked the multiple.

Pair with comps judgment

Calendarizing is hygiene. After periods match, you still need peer selection, outlier handling, and the trading comps vs precedents decision. Practice the full loop on Project Atlas.

Also refresh LTM vs NTM EBITDA so period hygiene and entry-multiple language stay aligned in PE and IB rooms.