About

A news radar for people who trade US stocks.

Clarion reads the news, the filings and the calendars for the stocks you follow, keeps what can move them, and tells you about it before you would have found it yourself. It does not trade, and it does not predict prices: it makes sure the catalysts reach you, with the facts to judge them.

24/7collecting, every two minutes

10+kinds of sources: news, SEC filings, FDA, trials, earnings

0trades placed, ads shown or data sold

Vision

From news to decisions.

The first phase was the plumbing: collect everything, score it, deliver it. The next phase is to show what the news actually did, and to make reading it fast:

Proof over opinion. Every important story is followed by what the price did afterwards, so the scoring can learn which kinds of news really move a stock, from Clarion's own record rather than guesswork.
Pictures before paragraphs. A radar, a pulse, price lines around each story and gauges instead of walls of text.
Honest descriptions. Clarion describes the chart and the news; it never dresses a pattern up as a forecast.
Yours. A personal tool, run for its owner, with no ads, no tracking and no selling of anything.

How it works

Four steps, every two minutes.

Collect. News feeds, SEC EDGAR filings, FDA and Federal Register notices, ClinicalTrials.gov, the Nasdaq earnings calendar and prices.
Match and score. Each story is matched to the watchlist and scored 0-100 by rules: earnings, FDA decisions, trial data, deals, guidance, filings and macro shocks score high; holdings spam, law-firm ads and re-dated old news are pushed down.
Deliver. Important stories go to Telegram straight away; everything is on the dashboard, with the price beside it.
Record. What the price did 1 hour later, at the close and at the next close, beside the S&P 500.

Team

Built by one trader, for traders.

FounderSwing trader in US stocks and earnings options · Germany

Name, photo and a line about yourself: to be added.

EngineeringBuilt with Claude (Anthropic), an AI assistant, working in reviewed, tested steps

Contact

Get in touch.

Members

Message the Clarion bot on Telegram, or use the Account page once signed in.

Everyone else

A contact address: to be added.

Licenses & credits

Built on open source.

Clarion's own code is private. It stands on these open-source projects, used under their licenses:

SoftwareUseLicense

Inter typefaceAll textSIL Open Font License 1.1

PythonLanguagePSF License

Flask, Werkzeug, Jinja2, Click, ItsDangerous, MarkupSafeWeb dashboardBSD-3-Clause

WaitressWeb serverZope Public License 2.1

Requests, tzdataFetching, time zonesApache-2.0

urllib3, PyYAML, Blinker, charset-normalizerNetworking, settingsMIT

idna, python-dotenvNetworking, settingsBSD-3-Clause

certifiTrusted certificatesMPL-2.0

defusedxmlSafe feed parsingPSF License

CaddyHTTPS in front of the serverApache-2.0

Data

News and data come from public sources, each under its own terms: Google News and publisher RSS feeds, Yahoo Finance's public chart data (unofficial), SEC EDGAR, the Federal Register, ClinicalTrials.gov, the Nasdaq earnings calendar and Cboe's delayed options quotes. Headlines and links belong to their publishers; Clarion shows a headline and links to the source. Optional AI briefs are written by Claude (Anthropic). Alerts are sent through the Telegram Bot API.

Certifications

None, and none implied.

Clarion holds no certifications. It is a personal software tool: it is not a registered investment adviser, broker-dealer or research provider, it is not regulated by the SEC, FINRA or BaFin, and it holds no security certification such as ISO 27001 or SOC 2. What it does have: HTTPS with a Let's Encrypt certificate, passwords stored only as scrypt hashes, sign-in limits and alerts, nightly checked backups and automatic security updates on its server.

Privacy

What Clarion keeps, and what it does not.

Accounts: a username, a display name, an optional email and the password as a scrypt hash, never the password itself.
Sign-ins: for each signed-in browser, a hashed session token, the browser type and the address it signed in from, so you can see and end your sessions; a hashed device cookie to recognise a new browser.
Telegram: the chat id of a linked chat, to send alerts there.
Your choices: stars, votes on stories, and your design and theme settings (kept in your browser).
Cookies: only the ones above (session, device, design choice). No analytics, no advertising, no third-party trackers.
Where: one server in Microsoft Azure's Poland Central region; nightly backups, the newest 14 kept, plus a copy on the owner's computer.

Disclaimer

A news filter, not financial advice.

Clarion collects and sorts publicly available information. Nothing on it is a recommendation to buy or sell anything. Scores, tags, readings, gauges and AI briefs are automated summaries that can be wrong, late or incomplete; free data runs seconds to minutes behind professional terminals, and some sources are unofficial. Check the original source before acting, and make your own decisions.