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2026 BUYER'S GUIDE

AI Stock Signal Tools —
what to look for

BEFORE YOU READ ON
We are in this category, so we are not going to rank it and put ourselves first. What follows is the criteria we think actually separate these tools, the questions worth asking any vendor — us included — and an honest account of where ours falls short. If you want a ranked list with a winner, this is not that page.

What Actually Separates These Tools

Latency, measured end to end
"Real time" is not a specification. Ask where the clock starts: at the event, or at the vendor’s own ingestion? We stamp the exact dispatch time on every alert and publish measured latency, not a rounded promise.
A disclosed scoring methodology
If a tool ranks events, you should be able to read what goes into the rank. A number with no documented inputs is a brand, not a measurement.
Named data sources
"Institutional data" means nothing. Which wires? Which filings? Is the options data OPRA? Is a dark pool claim backed by an actual ATS feed, or inferred from public volume? That last one catches a lot of tools — it caught us, and we wrote it up.
A free tier you can verify with
Anything else asks you to trust the marketing before you can check it. A capped free tier is enough; no free tier at all is a choice worth noticing.
What it claims about direction
The single most useful filter, and the subject of the next section. A tool that promises direction is making a claim that is testable — so ask to see the test.

On the third of those, we found the public dark pool data was not timely enough to do what the marketing around it implies, said so, and changed what we claim.

Four Questions to Ask Any Vendor

1
What is the out-of-sample evidence for the directional claim?
Not testimonials, not screenshots of winners. The test. And were the success criteria set before or after seeing the results?
2
What does "win rate" mean here, exactly?
Over what horizon, with what exit rule, net of what spread and slippage? A win rate that assumes a perfect exit and zero costs is arithmetic, not performance.
3
Did the backtest survive contact with forward data?
In-sample performance is easy. Ask what happened when the model was frozen and run on events it had never seen — and whether anyone checked for leakage.
4
What does the tool not do?
A vendor who cannot answer this has either not thought about it, or would rather you didn’t.

We think these questions are more useful than any ranking, partly because we have failed some of them ourselves and changed the product as a result. The directional one we tested and published the failure.

Where TradeAI News Fits

Event detection across named feeds, classified catalyst types, a 0–100 significance score, and delivery to the dashboard, Telegram and a REST API. Free tier with no card; $29/month for uncapped events and Gamma Exposure; $59/month adds Volume Surge; $99/month adds API access.

Strongest fit if your workflow is catalyst-driven and your bottleneck is finding out fast. Weakest fit if you want the decision made for you.

Where It Falls Short

—
No directional call
We tested it, it failed, we do not publish one. If a direction is what you are buying, buy elsewhere.
—
No dark pool feed
We do not ingest ATS data. What we measure is unusual volume from public market data, and we say so on the page.
—
No execution, sizing or portfolio logic
We are broker-agnostic by design. You place every trade yourself, at your own size.
—
US equities only
No crypto, no forex, no futures, no international listings.
—
No published accuracy figure
We have not validated one we would defend, so we do not quote one. Some tools do quote one; question 2 above is how to read it.
RELATED PAGES
Why We Don’t Sell SignalsPricing

Frequently Asked Questions

What should a beginner start with?

Any tool with a free tier you can verify before paying, ours included. Judge the format on real events for a week before you spend anything. What you are testing is whether the notifications are things you would actually have acted on, and whether they arrived early enough to matter.

Which tool has the best options flow?

It depends what you mean by best. Dedicated options-analytics platforms go deeper on raw flow than we do — more granular filtering, more historical exploration. We integrate options context into a scored event rather than presenting flow as a standalone dataset. They are different products, and the right one depends on whether you want to explore data or receive classified events.

Are AI-detected events profitable?

Not on their own, and any vendor who answers this differently is selling you something. Detection tells you what happened and how unusual it is. Every decision after that — whether to act, in what size, with what exit — is yours, and carries risk including the loss of your capital.

What is the cheapest way to try this category?

A free tier. We have one and it requires no card, though it is capped and truncated. Some tools in this category do not offer one at all, which means you cannot verify any of their claims before paying.

Do I need more than one tool?

Usually not more than one detection tool — running two competing event feeds mostly produces duplicate notifications and decision paralysis. Pairing one detection tool with a charting platform is a common and sensible combination, since they solve different problems.

Which is the most accurate?

Unanswerable as asked, because no two vendors define accuracy the same way. One counts a move in either direction, another counts direction, another counts a move of any size within a week. Question 2 in the list above is the way through it: ask what the number means before comparing numbers.

Why does this guide not rank the tools?

Because we are one of them. A ranking written by a participant with itself at the top is an advertisement wearing a guide’s clothing. We would rather give you the criteria and the questions, and let you run them against us as well as everyone else.

Run those questions against us

Free tier, no card. Uncapped from $29/month.

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Not financial advice. Trading involves risk.

Last updated September 8, 2026