Transparency

Methodology

Last updated: July 6, 2026

Meridian aggregates public, verifiable market disclosures — congressional trade filings, institutional 13F holdings, insider transactions, dark pool volume, on-chain crypto flows — into one research platform. This page explains where the data comes from, how signals are built, and what they can and cannot tell you. The short version: every signal traces back to a public record you can check yourself.

1. What Meridian Does

Meridian tracks 19 signal sources across US equities, crypto, and cross-market analysis. Each source is a stream of public disclosures or market data: who filed what, when, and for how much. We collect these records as they are published, structure them, and surface the patterns — clusters of insider buying, institutional position changes, congressional trading activity, unusual dark pool volume, large wallet movements on-chain.

We do not predict prices, and we do not tell you what to buy. Meridian is a research instrument: it shows you what verifiable public records say, faster and with more context than reading filings one at a time.

2. Where the Data Comes From

Equity signals are built from official, publicly accessible disclosure systems:

  • SEC EDGAR — quarterly 13F institutional holdings, Form 4 insider transactions, and Schedule 13D/13G activist stakes. Any filing we reference can be verified at EDGAR full-text search.
  • Congressional disclosures (STOCK Act) — periodic transaction reports filed by members of the US Congress, published by the House Clerk and the Senate Office of Public Records.
  • FINRA — short interest (published twice a month) and weekly ATS ("dark pool") volume, available through FINRA Data.
  • Fund and ETF disclosures — daily holdings published by active ETF issuers such as ARK Invest, and spot ETF flow reports.
  • Other official records — lobbying disclosures, federal contract awards, and company earnings calendars.

Crypto signals are built from public market and on-chain data: large-wallet transaction tracking, exchange flows, derivatives funding and open interest, spot ETF flows, and the Fear & Greed index.

If a fact cannot be traced to a public source, it does not ship.

3. How Signals Are Built

A signal on Meridian is a structured fact with context. For example: several Form 4 filings show officers of the same company buying within a short window; or a ticker appears simultaneously in rising 13F positions and recent congressional purchases. The platform's work is aggregation and context — how unusual is this activity compared with that source's own history, and which independent sources agree.

Signals describe events. They are not recommendations, price targets, or forecasts.

4. Confluence: How We Weigh Evidence

A single filing is a data point. Independent confirmation is what makes evidence interesting. That is the idea behind Confluence, Meridian's cross-source view: when unrelated datasets — insider buying, institutional accumulation, congressional purchases, dark pool activity — point at the same name in the same window, the alignment itself is the signal. When sources disagree, or simply fall silent, you see that too. We would rather show you nothing than manufacture a story.

The exact scoring internals are proprietary, but they operate only on the inputs listed above — and every underlying fact is independently verifiable at its source.

5. Timeliness and Limitations

We would rather you know exactly what these numbers are than assume they are something they are not.

  • Disclosures lag by law. Form 4 insider filings are due within two business days of the trade. 13F holdings are published up to 45 days after quarter end. Congressional STOCK Act reports are due within 30 to 45 days of a transaction. A filing tells you what happened, not what is happening right now.
  • Refresh cadence follows the source. Most equity datasets refresh daily as new filings are published; FINRA short interest updates twice a month; 13F data is quarterly by nature.
  • Public records get amended. When a filer corrects or amends a disclosure, we reflect the change on the next refresh.
  • Coverage is US-market-centric for equities. Crypto coverage focuses on major assets and venues.
  • Past positioning is not predictive. Insiders, institutions, and politicians are wrong all the time. A signal is a reason to look closer, not a reason to trade.

6. Corrections and Contact

Knowledge Base articles are dated — every article shows when a human last reviewed it, and articles updated after first publication show their original Published date as well. Every article carries a standing disclaimer: educational content, not investment advice. How content is produced, reviewed, and corrected is documented in our editorial policy.

If you believe a number on Meridian is wrong, email [email protected] — include a link to the page and we will check it against the source.