Every investment thesis tracker, compared
We build one of these, which you should hold against everything below. So here is the deal we are offering: every claim about a competitor is dated, anything we could not verify is marked as unverified rather than filled in, and where a rival does something better than us the entry says so.
Last updated 31 August 2026
Read this part first
A comparison written by a vendor is an advertisement unless it costs the vendor something. Three things this one costs us, stated up front so you can check whether we kept to them.
We are not the right answer for everyone on this page. If you want a writing environment with version history and no automation, subThesis is a better fit than we are. If you want a broad portfolio tracker covering crypto and commodities, Horyzon is. If you want something to help you form a view in the first place, we do not do that and Museras does. Those are in the entries below, not buried here.
Every product named anywhere on this page has a row. That rule is here because we found a rival’s comparison breaking it: its FAQ named ThesisLoop as a live competitor while its own table left the row out. ThesisLoop turned out to be real, live, and cheaper than most of this list. A comparison whose prose mentions a competitor its table omits is not a comparison.
Nothing here is a live ranking. These are dated observations of public pages, not a scoreboard, and several of these products are weeks old and changing fast. If a row is wrong, tell us and we will correct it and change the date.
The one axis that actually separates them
Almost every tool here will show you something when news breaks. The question worth asking is narrower: what does it read, and who decides what the reading means?
On sources, the split is three ways. Some read only what you type in — those are journals, and a journal is a fine thing to want. Some read news, which arrives quickly and tells you a story broke, but cannot tell you a quarter went the way you expected. Some read the filings and the transcripts, which is where the answer to that question actually lives.
On the decision, the split is two ways, and it is the one nobody advertises. Most automated tools here hand the source document and your thesis to a language model and publish what it says. That is fast to build and it is why the labels drift: ask twice, get two answers.
Okidor assigns every audit one of five fixed verdicts through deterministic application rules rather than letting a language model state the conclusion: the model is given the thesis and the source document and returns structured evidence, its output schema has no verdict field at all, and the finished report names which rule produced the label, so identical inputs always produce an identical verdict. Of the fourteen other products below, none published a description of a fixed, rule-assigned verdict on the date we checked — which is not the same as saying none exists, only that none says so.
Where we sit
Rule-assigned thesis audit · Reads: Filings, transcripts, news · Decides: Fixed rules · Free for 3 investments; $14.99/month
Holds the thesis you wrote and rules on it. Every new SEC filing, earnings-call transcript and material news item is read against your stated reasoning, and each audit records which version of the thesis it judged, so a thesis you later revise cannot be credited with a conclusion the earlier version reached. The decision is where it differs from everything above: the model returns structured evidence and its output schema has no verdict field, so the label is applied afterwards by fixed rules and the report names which rule fired. Numeric kill criteria are computed arithmetically from the filing's own XBRL figures before any model is consulted.
Accurate as of 2026-08-31.
Judge the output rather than the copy. The worked example is readable without an account, and every audit in it shows the evidence it drew on, the assumptions it moved, and which rule produced the verdict — which is the part you cannot check from a marketing page on any of these sites, including ours.
Tools that read filings and transcripts
Whole-portfolio monitor with a thesis layer · Reads: Filings, transcripts, news · Decides: A language model · Free tier; $20/month for thesis monitoring
The most serious competitor here, and the one doing the best job of explaining itself. It links real SEC EDGAR filings with accession numbers behind its claims, which is a genuinely high bar, and it stamps individual competitor facts with the date they were checked. Its weakness is scale over substance: 614 pages, roughly four in five generated from one list of 130 tickers, and two of its own section roots return 404 so nearly half the site is reachable only through the sitemap.
Checked against their own site on 2026-08-31.
AI research terminal · Reads: Filings and transcripts · Decides: A language model · $15/month introductory, up to $69/month
The broadest data of anything on this list — filings, earnings calls, insider trades, 13F holdings and analyst ratings — and by far the largest published surface at 806 pages. It is a research terminal first: you go to it with a question. It does not hold a thesis you wrote and rule on it.
Checked against their own site on 2026-08-31.
Thesis-break monitor · Reads: Filings, transcripts, news · Decides: Not disclosed · Not disclosed — “founding member pricing when we launch”
The closest thing to us in language: its headline is “know when your thesis breaks.” Its stated scope is the widest of anyone here, adding social sentiment and macro indicators. We could not evaluate any of it, because as of the date checked there is no product to sign up for — only a waitlist. Worth watching rather than comparing.
Checked against their own site on 2026-08-31.
Thesis generator, then monitor · Reads: Filings and transcripts · Decides: A language model · Not disclosed on a crawlable page
Builds a cited thesis memo for you from filings and transcripts, then monitors it. That is the opposite of our order of operations: we think the thesis has to be yours or the exercise is hollow, but if you want help forming a view in the first place, we do not do that and they do.
Checked against their own site on 2026-08-31.
Filing-driven thesis monitor · Reads: Filings · Decides: Not disclosed · $4.99 per holding per month
Priced per holding, which is unusual and gets expensive at portfolio scale — ten positions is $49.90 a month. We have not been able to verify its behaviour independently; this row is built from a rival's dated comparison rather than from our own reading of the product.
Checked against their own site on 2026-08-31.
AI research desk for US equities · Reads: Filings and transcripts · Decides: A language model · Free tier; $5/month, or $16/month for unlimited
Generates institutional-style research on US companies from 10-Ks, 10-Qs, earnings materials and calls, with each insight traced back to the source document — the tracing is the good part, and it is the same instinct behind our own evidence citations. It writes research for you rather than holding a thesis you wrote. Worth knowing how this row got here: a rival's FAQ named ThesisLoop as a live competitor while that rival's own comparison table left it out, and it turned out to be real, live and cheaper than most of this list.
Checked against their own site on 2026-08-31.
Tools that read news
Worth knowing why this is its own group. News arrives constantly and reports what one third party says happened. It can raise a concern, and it genuinely does catch things early. What it cannot do is confirm that the reasoning behind a long-term holding still holds, because that claim rests on results, and results arrive in filings. We treat a supportive news item as supportive evidence and never as confirmation, for that reason.
News-driven thesis alerts · Reads: News only · Decides: A language model · Free for 3 stocks; $15/month, free during beta
Positioned almost identically to us — “get alerted only when your investment thesis changes” — and it published an honest, disclosed comparison of its rivals, which is more than most do. It reads news rather than filings, so it can tell you a story broke but not that a quarter did. Its four posts carry no external citations, including one making specific quantitative claims about scoring 21,825 articles with no methodology to check.
Checked against their own site on 2026-08-31.
News-driven thesis alerts · Reads: News only · Decides: A language model · $20/month
Checks the public web twice a day for developments against your theses. Same shape as InsightDock and the same limit: news can raise a concern but cannot confirm that a quarter went the way you expected.
Checked against their own site on 2026-08-31.
Journals and manual trackers
These do not read anything. That is not a criticism — a journal you actually keep beats an automated tool you ignore, and the discipline of writing the reasoning down is the part that does most of the work. They differ from the group above in that re-reading is your job.
Portfolio tracker with a thesis field · Reads: Whatever you enter · Decides: You do · Free and Pro tiers named; no price published
A real, shipping mobile app on both stores, covering stocks, ETFs, crypto, commodities and cash — a much broader portfolio tool than we are. The thesis is a field you fill in and re-read yourself; nothing reads filings against it.
Checked against their own site on 2026-08-31.
Version-controlled research workspace · Reads: Whatever you enter · Decides: You do · $7.99, $19.99 or $29.99/month
Git-style history for your research, in Markdown, with evidence you attach yourself. If you want a writing environment with real version control and no automation at all, this is a better fit than we are. It will not tell you when something happened.
Checked against their own site on 2026-08-31.
Note-first tracker over synced holdings · Reads: Whatever you enter · Decides: You do · Not disclosed
Connects your brokerage through Plaid so your notes sit against real positions, which is a genuinely nice touch we do not have. As of the date checked the site is an email capture form rather than a product.
Checked against their own site on 2026-08-31.
Metric-divergence monitor · Reads: Reported metrics · Decides: Not disclosed · Not disclosed
Describes itself as alerting when revenue growth, margins or EPS diverge from assumptions you set. We could verify almost nothing: the site renders entirely in the browser, so there is no readable page to check, and it was still serving a leftover development banner on the date checked.
Checked against their own site on 2026-08-31.
Investment decision journal · Reads: Whatever you enter · Decides: You do · Free while in open beta
A well-thought-out manual journal built by a working fund manager — checklists, follow-up reminders on management claims, and a mood graph plotted against price. Nothing automated reads anything. Its reminder mechanic, where you flag a claim management made and get asked about it later, is a good idea we do not have.
Checked against their own site on 2026-08-31.
Investment decision journal · Reads: Whatever you enter · Decides: You do · Free
A free indie iOS app for recording why you made a decision, what risks you saw, and what you learned. No automated ingestion of anything. If all you want is somewhere to write it down on a phone, it costs nothing.
Checked against their own site on 2026-08-31.
Questions we get asked
Does an AI decide the verdict in Okidor?
No. Okidor assigns every audit one of five fixed verdicts through deterministic application rules rather than letting a language model state the conclusion: the model is given the thesis and the source document and returns structured evidence, its output schema has no verdict field at all, and the finished report names which rule produced the label, so identical inputs always produce an identical verdict.
How does Okidor check a numeric sell rule?
Arithmetically, from the filing's own reported XBRL figures. A kill criterion such as “gross margin falls below 40 percent” is computed from the company's own numbers before any language model is consulted, so a breach is settled by calculation rather than by prose, and no amount of favourable narrative in the filing can talk the result out of it.
What does Okidor read, and what does it compare against?
Okidor audits every new SEC filing, earnings-call transcript and material news item against the investment thesis you wrote before you knew the outcome, for as long as you hold the position. Each audit records which version of your thesis it judged, so a thesis you later revise cannot be quietly credited with a conclusion the earlier version reached.
How to choose, if you are still deciding
Ask what you actually want to happen on a Tuesday six months from now, when a company you own files a 10-Q and you are busy.
If the honest answer is “I would like a place to have written my reasoning down, and I will review it myself” — take a journal. They are cheaper, several are free, and they work if you work.
If it is “I want to be told when something happens” — a news monitor will do that, and quickly.
If it is “I want the quarter I would have skipped read against what I said I believed, and I want to know which rule fired” — that is the thing we built. See how the engine decides, or start with kill criteria, which is the part of the process most people skip regardless of which tool they pick.
Nothing here is investment advice, and no product on this page is recommended as an investment or endorsed beyond the dated factual observations given. See the disclaimer.