DilutionTracker Alternatives in 2026: What Each One Covers and Costs

DilutionTracker is the incumbent for a reason. By its own description, a team of traders reads the filings for roughly 2,300 US companies under a $500 million market cap, and there is a free plan. Most people shopping for an alternative have no quarrel with that data. They want something it was never built to do.

So the sections below follow the need, not a ranking. For an API, Dilutracker includes one on every plan, AskEdgar sells usage-based credits, Signal8 puts an API and MCP server in Pro, and DilutionTracker itself offers bulk data and API access on an institutional subscription. Above $500 million, AskEdgar states audited numbers up to about $1 billion and DilutionWatch says it monitors every EDGAR filer; Signal8 is no help there. A scanner in the same subscription narrows it to Signal8 and AskEdgar. Free options are DilutionTracker's own Casual plan, the free tiers of AskEdgar and DilutionWatch, and SEC EDGAR. Plain-English questions about filings is AskEdgar's whole pitch.

Every price below was checked on the vendor's own pricing page on 2026-10-12. Prices change; check the date.

These are the things you give up when you leave.

Manual review. DilutionTracker says its data is "collected manually by our team of traders", that the team reads "every filing that comes out for every company within our coverage universe", and that it tries to process new dilution filings by 9 p.m. Eastern each day. It reads press releases and 10-Q/10-K text too. That matters, because warrant exercises and ATM usage often show up in prose and never get a filing of their own.

A focused universe. Stated coverage is "most US listed companies below $500m market cap (approximately 2,300 companies with 1,900 having relevant diluting filings)." The company frames that as a choice: it skips larger issuers because dilution explains less of their price movement.

Breadth inside that universe. Warrants, convertible debt, convertible preferred, ATMs, equity lines, shelf capacity and pending S-1 offerings, plus a four-factor dilution rating, audited float and an education library.

A real free plan. Casual costs nothing and includes ticker browsing, audited float, institutional ownership and the education library. Premium adds all data fields, live shelf data, the dilution rating, completed offerings, filing alerts and short interest. A rotating set of "Open Access" tickers is fully viewable with a free account.

Pricing, as of 2026-10-12: Premium is $74 a month billed monthly, or $588 a year ($49 a month billed annually), with a 7-day free trial. A year of monthly billing costs $74 × 12 = $888, so annual saves $300. DilutionTracker also lists complimentary Premium through the CenterPoint Edge broker bundle, with a $50,000 minimum deposit and a 100,000-shares-a-month trading requirement after the first three months.

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Building a screen, a spreadsheet or an AI agent? Then a browser-only tool is your bottleneck.

DilutionTracker itself. Its FAQ answers "Can I download data in bulk or access the data via API?" with "Yes, with an institutional subscription. Please get in touch for a quote." No public price is listed. If you already like the data, ask them before you switch.

Dilutracker (a separate company with a confusingly similar name) puts the API on every plan: "Every plan includes all API endpoints." The cap is unique tickers per month: 100 on Starter ($69 a month), 1,000 on Pro ($119) and 5,000 on Business ($299), with bulk exports and webhooks on Business. Annual billing is advertised as "save up to 28%", with no annual prices shown.

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AskEdgar sells API access on prepaid credits, charged by the volume of data returned rather than per request, "measured per GB and varies by endpoint". Its docs say there is no self-serve free API tier, and the Enterprise plan lists API access for custom integration at a custom price.

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Signal8 includes a REST API and a hosted MCP server (for Claude and other AI assistants) in Signal8 Pro: 120 requests a minute, 10,000 requests a day, up to three keys. The free account gets no API allowance. See the API quickstart and using Signal8 with Claude.

The options thin out here. Most dilution tools stop somewhere in small caps, since that is where offerings move the share count most.

AskEdgar draws the widest line of the structured-data tools we checked: "audited numeric data currently covers companies under ~$1B market cap. Larger companies return null for the affected numeric fields." A $700 million company is inside its audited range and outside DilutionTracker's.

DilutionWatch says it "monitors SEC filings for 10,000+ U.S. equities" and covers "every public company on EDGAR", with AI summaries of filings on Premium. That is filing monitoring and summaries across all filers, a different product from a manually reviewed dilution table, so be clear which one you are after.

Signal8 does not solve this one. Its dilution snapshots are built for small-cap issuers, and as of 2026-10-12 the cutoff is the same $500 million market cap DilutionTracker uses. Larger companies get an out-of-scope notice on the Dilution tab.

For anything bigger, the primary source is free: the 424B prospectus supplements and the share count on the latest 10-Q cover. The 424B5 guide walks through it.

DilutionTracker is a research tool. Its pricing page and homepage list no scanner as of 2026-10-12, so traders usually pay for a scanner somewhere else.

Signal8 has both in one account. The premarket scanner is live for any signed-in free account. Pro adds dilution filters to it (an active ATM, remaining shelf capacity, a going-concern warning, potential dilution) and a dilution pressure column, on top of the full dilution snapshot on each company page. Pro is $59 a month or $588 a year as of 2026-10-12. That annual price is DilutionTracker's Premium Annual to the dollar, so the comparison comes down to what is in the box.

AskEdgar includes a screener (marked "Limited" on the $59 Pro plan, "Advanced screener with full history" on the $199 Professional+ plan) and "Discord automated research & scanners" from Pro up.

Dilutracker lists a "stock screener" on every plan, though the pages we read don't describe its filters.

You can check dilution on one ticker without paying anyone. It just takes longer.

• DilutionTracker Casual. Free, with the Premium-only fields listed above locked.
• AskEdgar Free. $0 with 20 AI questions a month and a basic screener.
• DilutionWatch Free. $0, with browse-only access to its reverse split tracker, shelf and ATM monitor and a weekly digest. Paid plans are $19.95 or $39.95 a month.
• Signal8 free account. Company pages, SEC filings, the live premarket scanner and, where a snapshot exists, a locked preview of the Dilution tab showing how many instruments of each type were found. The full figures are Pro.
• SEC EDGAR. EDGAR full-text search finds phrases such as "at-the-market" or "pre-funded warrants" across every filer. The EDGAR search basics guide is the place to start.

Once you have the inputs, the free Academy calculators do the arithmetic: the baby shelf calculator for the one-third-of-float cap covered in S-1 vs S-3 and the baby shelf, and the cash runway calculator for months of cash left.

AskEdgar is built for this. Its plans are sized by AI questions: 20 a month free, 600 on Pro ($59 a month), 1,000 on Professional+ ($199 a month) and unlimited on Enterprise, plus filing, transcript and news summaries. If your day sounds like "read me the conversion terms in this 8-K", it is the closest fit.

DilutionWatch lists AI filing analysis that "extracts share counts, offering terms, and flags dilution signals" on its $39.95 Premium plan.

Signal8 goes another way: AI analysis is attached to each SEC filing and press release in the feed, and the MCP server lets your own assistant (Claude, for example) answer questions from Signal8's data. There is no question count; the API rate limit is the ceiling.

All prices as of 2026-10-12, from each vendor's own site. Coverage is quoted in the vendor's own words.

We make Signal8, so weigh this section more heavily than the rest.

• No manual review of every filing. Signal8 snapshots are built from the filings and pass consistency checks before they are published, with every figure cited to its filing. DilutionTracker describes a team of traders reading each filing. If human review is why you use DilutionTracker, that difference is real.
• Snapshots are built on request. If a small cap has no snapshot yet, a Pro user clicks Get dilution data and it is built from the filings, typically in 10 to 90 minutes, with an email when it is ready. We have not published a count of covered companies or a measured filing-to-update time, so we claim neither.
• Same small-cap ceiling. Signal8 doesn't cover companies above $500 million either.
• Less history. DilutionTracker has years of reviewed data, an education library and a community of traders who have been checking its numbers for a long time. Signal8 is newer.

Take one ticker you know well, open it in each tool's free plan or trial, and hold what you see against the latest 10-Q and any 424B filed since. Three checks: does the warrant count match the filing, does the shelf figure account for the baby shelf cap, and what does the tool show for a number it could not find? A blank or "not measured" where the filing is silent is more careful than a zero.

After that it is mostly about the job. Hand-read small-cap data is DilutionTracker's territory. Dilutracker is the cheap way into an API, AskEdgar is for people who would rather ask than read, and Signal8 is for putting dilution data and a scanner under one login. Plenty of traders run more than one.