Signal8 vs DilutionTracker in 2026: Same $588 a Year, Different Tools

On an annual plan the two cost the same: $588 a year each, as of 2026-10-12. So the decision rests on how the data is produced, what else comes with the subscription, and how you get the data out.

DilutionTracker is a dedicated dilution product built on manual review. Its pricing page says its data "is collected manually by our team of traders" who "read every filing that comes out for every company within our coverage universe", which is approximately 2,300 US-listed companies below a $500 million market cap. It has a free plan and a long-standing following among small-cap traders.

Signal8 builds its dilution snapshots from SEC filings, and every figure carries a citation back to its source: the accession number, the filing date and the verbatim sentence. The snapshots are one piece of Signal8 Pro, which also includes a premarket and intraday scanner, AI analysis of filings and press releases, insider and congressional trade data, and a developer API plus MCP server.

All competitor facts below come from DilutionTracker's own pricing page and homepage, checked on 2026-10-12. "Not listed" means we could not find it on their site that day, not that the feature does not exist.

DilutionTracker's pricing page, on 2026-10-12, marks the Casual plan as including browsing over 2,300 tickers, unlimited searches, the education library, audited float and institutional ownership. All data fields, live shelf data, the dilution risk rating, completed offerings, latest dilution filings, offering PR and filings alerts and short interest are marked as not included in Casual. Separately, the homepage says a set of Open Access tickers is viewable with a free account.

This is the difference that matters most, and both approaches pay a price for it.

DilutionTracker: manual review

DilutionTracker's position is that dilution updates are often disclosed "in natural language" in press releases and quarterly and annual reports, which it says makes "automated scraping impossible". So it uses people: a team of traders reads every relevant filing for every covered company, and the homepage says results are "cross checked among a group of experienced traders".

dilutiontracker.com

Enlarge

What you get is judgment. A person reading a messy 10-Q footnote can settle an ambiguity that trips up automated reading. What it costs is a fixed universe of roughly 2,300 companies under $500 million, by their own stated choice.

Signal8: per-field filing citations

Signal8 reads each company's SEC filings (registration statements, prospectus supplements, 8-Ks, 6-Ks and periodic reports) and stores the result as a dilution snapshot: warrants, convertibles, preferred stock, ATMs, equity lines, shelf registrations, pending S-1 offerings, recent offerings and a cash position model.

signal8.ai

Enlarge

Three rules shape what you see. Every number carries the accession number, the filing date and the quoted sentence it was read from, so you can open the filing and check it yourself. Snapshots go through a suite of consistency checks before publication, and a row that fails is withheld from the page, with the snapshot saying how many rows were held back. And when a filing does not state a figure, the field stays blank and labelled not measured; it is never filled with a zero.

The catch is the mirror image of DilutionTracker's: no trader reads every filing, so snapshot quality depends on Signal8's process and its checks.

Here is one row from Signal8's snapshot for Niki BioSolutions (NIKI), filings read through 2026-10-09. We checked each fact below against the filing text.

The company filed a Form S-3 shelf on 2026-08-28 (accession 0001213900-26-094595) to sell securities "for an aggregate offering price of up to $75,000,000". An 8-K on 2026-10-09 (accession 0001213900-26-108572) says the registration was "declared effective by the SEC on October 9, 2026". The same day, a 424B5 prospectus supplement (accession 0001213900-26-108567) laid out the baby shelf math:

the aggregate market value of our outstanding Common Stock held by non-affiliates was approximately $10.2 million

we are currently eligible under General Instruction I.B.6 of Form S-3 to offer and sell Common Stock having an aggregate offering price of up to approximately $1,396,000

The numbers reconcile. One third of about $10.2 million is about $3.4 million. The supplement also says $2,000,000 was already sold under I.B.6 in the prior 12 months, and $3.4 million less $2.0 million is about $1.4 million.

The snapshot also records an ATM supplement of $1,396,000 filed under this shelf. No later filing reports sales under it, so "used" and "remaining" dollars are left blank, not zeroed. This describes what the filings say, not a view on the stock.

Said plainly, because it bears on the choice:

• No human reads every filing. Manual review is DilutionTracker's core claim, and Signal8 does not match it. Consistency checks catch a lot, but they are not an experienced trader reading a footnote.
• Snapshots are built on request, and the count is not published. A ticker with no snapshot yet needs a one-click request and a 10 to 90 minute wait, where a fixed universe is already there. We have not published how many companies have a snapshot, and we won't quote a number we haven't measured.
• No fixed daily cutoff. DilutionTracker states a daily 9PM EST target. Signal8 updates when new filings arrive, lets Pro users regenerate on demand (10 to 90 minutes) and flags any snapshot more than a month old with its dates, but it has not measured a typical filing-to-display time.
• Very long filings are read in part. In the NIKI example, a 779,357-character 20-F was read in a 240,000-character window plus targeted sections such as debt footnotes and instrument terms. A detail sitting somewhere else in the document can be missed that way.
• A shorter track record. DilutionTracker's pricing page quotes testimonials from well-known small-cap traders, one of them a post from 2021. Signal8 is newer, with less community history.
• No free dilution snapshots. DilutionTracker has a free Casual plan, though its pricing page marks live shelf data and the risk rating as Premium. Signal8's free account does not include full snapshots.

• Traders who trust a human read. If a person going through every filing is what you rely on, that is DilutionTracker's whole model, and Signal8 doesn't offer it.
• Dilution-only users. It is a focused product, so you are not paying for tools you won't open.
• Sub-$500 million US listings. That is exactly its stated coverage, and its daily processing target is published.
• Anyone starting free. The Casual plan is free forever, and some tickers are viewable with just a free account.
• People who weigh track record. It has a longer public history than Signal8, testimonials from well-known small-cap traders on its own pricing page, and an education library those testimonials single out.
• CenterPoint customers. Its pricing page lists complimentary Premium through the CenterPoint Edge broker bundle, with deposit and trading-volume conditions.

• Traders who check every number. Each figure links to the accession number and the quoted sentence, so verifying a warrant count or shelf capacity is one click instead of a search through EDGAR.
• Anyone who wants dilution inside a wider workflow. One $588/yr subscription covers the dilution snapshots, the Pro Scanner, AI reads of each filing and press release, insider and congressional trades and the Terminal.
• People building with code or AI assistants. The API and the hosted MCP server are part of Pro, so you can ask Claude or ChatGPT about a company's shelf or warrants and get answers that carry their citations. DilutionTracker offers API access with an institutional subscription, priced on request.
• Readers who prefer a blank to a guess. If "not measured" beats a confident number with no source, the snapshot follows that rule throughout.
• Traders working around baby shelf limits. Snapshots break out the I.B.6 cap, trailing sales and the price at which the cap stops applying. The S-1 vs S-3 and baby shelf guide explains the rule.