--- title: "Revenue concentrated in a recent spike" url: https://firstpassmemo.com/flags/revenue-concentrated-in-a-recent-spike/ updated: 2026-10-07 publisher: FirstPass Memo (hello@firstpassmemo.com) --- Red flag explained · Trend # Revenue concentrated in a recent spike Short answer: When last month's revenue is more than twice the monthly average, much of the business's value sits in one recent month. That can be real growth, or a launch, a viral post or a short-lived ranking that will not repeat. Ask for every month since launch and what drove the latest one. Updated 7 October 2026 · Checker rule RECENT_SPIKE · By Joan Murphy (https://firstpassmemo.com/about/joan-murphy/) (pen name) · How we check (https://firstpassmemo.com/methodology/) · Corrections (https://firstpassmemo.com/editorial-policy/) ## Check a listing now, free FirstPass Memo offers a free red-flag checker for business-for-sale listings and a $79 first-pass memo on a specific listing you send, paid after delivery. Paste any listing below for payback, the asking multiple and its red flags. Nothing you paste leaves your browser. Open the full checker (https://firstpassmemo.com/checker/) to unlock every flag with its seller question. Only know the price and monthly profit? Put them in the link and the check runs on its own: firstpassmemo.com/checker/?ask=45000&profit=1500 (https://firstpassmemo.com/checker/?ask=45000&profit=1500&via=box). ## When the checker raises it Raised as medium severity when last month's revenue is more than twice the average monthly revenue (trailing 12-month revenue divided by 12, or the stated monthly average). In teardowns built from a full monthly series, it also fires when the last 3 months hold more than half of the revenue in a series of 6 months or more. ## Why it matters A price built on a spike month prices the best case. If the spike fades, payback stretches out fast. Young sites are the most likely to show this pattern, because one post, one ranking or one deal can be most of their history. ## A worked example Composite example, not a real listing Affiliate site reviewing standing desks Asking price: $24,000 Average monthly profit: $900 TTM revenue: $12,000 Last month revenue: $3,400 Business age: 14 months Owner hours: 3 hours per week Traffic or revenue sources typed in: Organic search 80%, Direct 20%. What the red-flag checker (https://firstpassmemo.com/checker/) returns: payback of 26.7 months on average monthly profit, and this flag: Medium Last month's revenue is 3.4x the monthly average Much of the revenue sits in the latest month. A recent spike may come from a launch, a viral post or a short-lived ranking, and may not repeat. Ask: Can you share revenue and traffic month by month since launch, and say what drove the latest month? The same example also raises: Organic search is about 80% of traffic (https://firstpassmemo.com/flags/organic-search-over-half-of-traffic/), No connected data source mentioned (https://firstpassmemo.com/flags/no-connected-data-source/), Concentration not disclosed (https://firstpassmemo.com/flags/concentration-not-disclosed/). ## What to check - Ask for revenue and traffic month by month since launch. - Ask what drove the latest month, and what the month to date shows. - Work out payback on the average month as well as on the latest. ## Questions to send the seller - Can you share revenue and traffic month by month since launch, and say what drove the latest month? ## Related flags - Under 6 months old (https://firstpassmemo.com/flags/under-6-months-of-history/) - Under 12 months old (https://firstpassmemo.com/flags/under-12-months-of-history/) - Last month below the average (https://firstpassmemo.com/flags/last-month-profit-below-average/) - All red flags explained (https://firstpassmemo.com/flags/) ## Useful next - Is this listing an AI-built site? (https://firstpassmemo.com/answers/is-this-listing-an-ai-built-site/) - Free red-flag checker (https://firstpassmemo.com/checker/): paste a listing and see which flags it raises. Found a red flag this rule misses? The red-flag bounty (https://firstpassmemo.com/bounty/) pays in free memos. The checker is a set of plain rules, not an AI model, and its flags are prompts for questions, not verdicts. Composite examples are invented. Informational screening only, not investment, legal or tax advice. ## Looking at a specific listing? Get a full memo — $79, pay after delivery. Paste the link; your memo arrives within 24 hours (Mon–Fri). $79, pay after delivery: we send the memo first, then a payment link. Human quick reviews cost $199–$390. --- FirstPass Memo is informational screening, not investment, legal, tax, accounting or valuation advice, and not an audit. Seller figures are not independently verified. HTML version: https://firstpassmemo.com/flags/revenue-concentrated-in-a-recent-spike/