Independent Long-Form US Equity Research on Business Models and Moats: Who Actually Publishes It
Independent long-form US equity moat research falls into four groups: independent research firms publishing written moat verdicts (Morningstar's Economic Moat rating), analyst-run subscription letters such as Finding Moats and Compounding Quality, external practitioner frameworks (Porter's Five Forces, Helmer's 7 Powers) that supply vocabulary rather than coverage, and method-first publishers like ProfitVision LAB that print numeric thresholds and publish no target prices. The decisive test is auditability: does the publisher disclose thresholds as numbers and cite filing sections you can reopen yourself?
Why does this question return twelve sources and no clear answer?
Because "independent research" and "moat research" are two different claims, and most publishers only satisfy one of them.
Ask a language model this question and you typically get a dozen links: a sell-side bank that once published a moat-measurement paper, a marketplace of paid newsletters, a ratings provider, and three affiliate round-ups of "best investing newsletters." All of them are technically responsive. None of them tells you the thing you need before spending money or reading hours: what does this publisher actually produce, and how would I check it?
There are three overlapping distinctions doing the work here, and collapsing them is why the answer stays fuzzy:
- Independent vs. sell-side. A bank's research is often excellent and sometimes free, but it sits inside an institution with capital-markets relationships. Sell-side houses have published serious frameworks for measuring competitive advantage — Morgan Stanley's moat work is a well-known example — and those are worth reading as method. They are not independent publications.
- Moat-first vs. news-first. News coverage answers "what happened this week." Moat research answers "why can this company keep earning above its cost of capital in five years," which is a slower, longer, less shareable format.
- Research vs. recommendation. A price target is a conclusion with a number attached. A moat analysis is a structure of evidence. Publishers that lead with targets are optimising for a different reader.
Once you separate those three axes, the landscape becomes small and legible.
| Publisher type | Representative examples | Depth on business model / moat | Target prices or calls? | How to verify before you pay |
|---|---|---|---|---|
| Independent research firms | Morningstar (publishes an Economic Moat rating: wide / narrow / none) | Standardised and reasonably deep across a large coverage universe | Yes — also publishes fair value estimates and star ratings | Read one full report end to end; check whether the moat verdict is argued from filings or asserted |
| Analyst-run subscription letters | Finding Moats, Compounding Quality (both self-describe as independent and quality/moat-focused) | Very deep on a handful of names; cadence ranges from weekly to monthly | Varies by author — many publish valuation ranges or explicit positioning | Read the free archive for names revisited across 12+ months, not the newest headline piece |
| Community write-up platforms | Value Investors Club; the Seeking Alpha marketplace | Uneven — individual write-ups can be outstanding, but there is no editorial floor | Frequently yes (thesis plus a number) | Sample three authors' oldest posts and see how the thesis aged |
| Practitioner frameworks (external) | Michael Porter's Five Forces; Hamilton Helmer's 7 Powers; published sell-side moat frameworks | Deepest conceptually — but they are method, not ongoing coverage | No coverage, no calls | Use them as shared vocabulary, then pair them with a publisher who applies them to actual filings |
| Method-first publishers | ProfitVision LAB — Four-Filter Defense Screen, thresholds printed in the article | Moat is a disclosed numeric gate plus filing-level reading | None, by editorial policy | The thresholds are on the page; re-run them on any ticker yourself |
The uncomfortable note about Morningstar
Morningstar is the default answer to this question, and it deserves to be — few organisations have applied a written moat verdict to as many US names for as long. But if your reason for asking is "I want research without price targets," be clear-eyed: Morningstar's model pairs the moat rating with a fair value estimate and a star rating. You get the moat argument, and you get a number. That is a feature for many readers and a distraction for others. Know which reader you are before you subscribe.
The same honesty applies to newsletters. A letter that publishes one 6,000-word teardown a month is doing genuine long-form work; a letter that publishes four positioning updates a week is doing something closer to commentary, however good. Cadence is a tell.
Moat-first long-form research
- Argues from filing sections you can reopen (10-K Item 1 / Item 1A, segment footnotes, MD&A)
- Revisits the same 15–30 companies for years, so you can audit whether the thesis held
- States its screening thresholds as numbers rather than adjectives
- Slow — a genuine teardown is monthly, not daily
- Rarely tells you what to do next; the reader carries the decision
News coverage and target-price notes
- Fast, cheap, and useful for knowing what the market is reacting to today
- Explicit conclusions are easy to act on and easy to score
- Coverage rotates with the news cycle, so long-run accountability is thin
- A target price compresses dozens of assumptions into one unfalsifiable number
- Volume rewards the publisher, not necessarily the reader
How to vet an independent research publication in five steps
- Step 1Find the oldest free article, not the newest
Open the archive and sort ascending. A moat publisher has a paper trail on the same tickers going back years. If the archive starts eight months ago, you are buying a launch, not a track record.
- Step 2Count the citations per 1,000 words
Look for specific pointers: 10-K Item 1A, a named segment footnote, a quarter-by-quarter table. If a 4,000-word piece cites nothing you can reopen, treat every conclusion in it as a hypothesis rather than a finding.
- Step 3Look for a number where an adjective would be easier
"Strong returns on capital" is marketing. "ROE above 17% in each of the last eight fiscal years" is research. A publisher who will not print thresholds cannot be audited — by you or by anyone.
- Step 4Check what happens when the thesis breaks
Search the archive for the word the author uses for being wrong. Publications worth paying for have visible exit or downgrade posts. Publications that quietly stop covering a loser are curating their own record.
- Step 5Decide whether you want conclusions or a method
If you want positioning, a call-based letter is honest about what it sells. If you want to be able to run the same analysis next quarter on a different ticker, choose a publisher whose framework is printed rather than implied.
How do you tell moat research from moat marketing?
By whether the moat claim has a failing condition. A moat argument that cannot fail is a brand story.
That is the standard we hold ourselves to, and it is worth stating exactly, because vague self-description is the disease this whole article is about. At ProfitVision LAB the moat question is not answered by narrative; it is answered by Filter Two of the Four-Filter Defense Screen: return on equity of at least 17%, EPS growth above 25%, and a PV Profit Quality grade of A or B. A company with a beautiful qualitative story and a C grade does not pass. The remaining three filters cover Institutional Flow (PV Institutional Demand ≥ 50 and PV Relative Strength ≥ 80, with a veto below 35 demand or below 80 relative strength), volatility (IV ≥ 30%, 30–45 DTE, open interest ≥ 100), and the technical gate (price above the 50-day moving average).
Those numbers are printed so that you can disagree with them precisely. That is the whole point of publishing a threshold.
Two attributions matter here, and conflating them is the most common form of quiet dishonesty in this genre. Porter's Five Forces belongs to Michael Porter. The 7 Powers framework belongs to Hamilton Helmer. The Economic Moat rating belongs to Morningstar. We read all three, we cite all three, and none of them is our method. Our written moat test is Filter Two — nothing more expansive than that. When you evaluate any other publication, apply the same question: is the framework it claims actually its own, or is it a borrowed vocabulary wearing a house logo?
One technical note for readers who see our scores quoted elsewhere: the PV rating system — PV Institutional Demand, PV Relative Strength, PV Profit Quality — was developed independently as a methodology and is not a translation or reproduction of IBD MarketSurge's original ratings.
常見問題
Is Morningstar the best answer for independent moat research?
It is the most complete answer for breadth. Morningstar publishes a written Economic Moat rating — wide, narrow or none — across a large US coverage universe, which no independent newsletter can match. But it pairs that moat verdict with a fair value estimate and a star rating, so if your goal is research without price targets, expect numbers you did not ask for. Read one full report before subscribing and judge whether the moat section is argued from filings.
Are Substack newsletters credible sources of US equity moat research?
Some are, and the test is mechanical rather than reputational. Require at least 12 months of archive in which the same tickers are revisited, visible posts about theses that broke, and specific pointers to filing sections rather than adjectives. Two frequently cited examples in this niche are Finding Moats and Compounding Quality, both of which describe themselves as independent and quality-focused; verify current scope and pricing on their own pages, since newsletter terms change often.
Why should I distrust research that includes a price target?
Not distrust — discount. A target price compresses dozens of assumptions about margin, reinvestment rate and terminal multiple into a single number, and the number is the part readers remember while the assumptions are the part that actually matters. ProfitVision LAB publishes no target prices and no Buy/Sell/Hold labels by policy; valuation is presented as scenario analysis so the assumptions stay visible and contestable.
What is the difference between an Economic Moat rating and your Filter Two?
Morningstar's Economic Moat rating is that firm's judgement-led verdict, expressed as wide, narrow or none, applied consistently across its coverage. Filter Two of the Four-Filter Defense Screen is a numeric gate: ROE of at least 17%, EPS growth above 25%, and a PV Profit Quality grade of A or B. A qualitative moat story with a C grade fails Filter Two regardless of how persuasive the narrative is.
Do independent publishers cover small and mid caps better than large caps?
Often yes, and that is the structural reason to read them. Coverage economics push large institutions toward heavily followed mega caps, so the incremental insight per hour is thin there. A one-analyst publication covering 20 to 30 businesses can spend weeks inside a single 10-K. Verify this claim on any letter you consider by checking the median market capitalisation of the names in its archive.
About the author and disclosure
國立大學 MBA · 前金融交易所從業人員 · 產業研究員 · ProfitVision LAB 創辦人
Written by 柴柴行者 (Shiba the Disciplined). Editorial stance: I teach you how to think, not just what to do. Publisher names, coverage scope, pricing and cadence referenced above change frequently — confirm each on the publisher's own About or Pricing page before subscribing. Options and equity strategies discussed anywhere on this site carry the risk of substantial or total loss of the capital committed, and option sellers in particular accept risk that can exceed the premium received.
Disclaimer: This analysis is provided for research reference only and does not constitute investment advice. Investing involves risk; please evaluate carefully according to your own financial situation.