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Stocks

AI Stock Screener ALVIS Describe a screen in plain English or filter every US-listed stock by any metric; browse international listings by market. One free screen — no signup

Short interest & flow

Most Shorted Highest short interest
Squeeze Risk Composite short-squeeze score
Largest Short Volume Daily short-volume leaders
Highest Off-Exchange Share Dark-pool / OTC volume leaders
Reporting Calendar When FINRA publishes short interest

Company intelligence

Earnings Call Transcripts Read recent calls and quarterly archives
Earnings Calendar Calls, transcripts & company events
SEC Filings Latest 10-K, 10-Q, 8-K and proxy filings
Insider Sentiment Where insiders are accumulating most
Largest Buybacks Biggest share-repurchase programs
Going-Concern Flags Companies disclosing going-concern doubt

Institutions

Fund Letters Source-linked Verified investor letters connected to the public companies they discuss Free publisher directory

Discover institutions

Browse Filers All 13F institutional filers
Smart Money Index Top funds' highest-conviction basket
Superinvestors Famous value investors' portfolios
Top by AUM Largest filers by assets
Most-Held Stocks Stocks owned by the most filers

Portfolio activity

Quarterly Activity Top buys, sells, openings and exits
AUM Movers Biggest assets-under-management swings
Last Quarter's Movers Notable position changes
Double-Down Report Increased-conviction buys
Conviction Heat Map Crowded positions at a glance
Most Crowded Stocks High-turnover and private-fund ownership

Filings & analysis

Latest Filings Newest 13F submissions
13F Trends Sector and flow trends
13F Holder Flows Money in and out by kind of filer
13F Statistics Aggregate filing statistics
Overlap Matrix Compare filer portfolios side by side
Clone Backtest Backtest a combined clone of several filers
Beneficial Ownership Recent 13D / 13G >5% stakes

Markets

Index Composition & Rebalance 7 indexes Constituents and observed changes for seven major US indexes, with forecasts where methodology permits Free constituent lists

Funds & market activity

ETFs Prices, performance, allocation and holdings
Insider Trading Corporate insider buys and sells
Registered Funds Mutual funds and SEC series from Form NPORT-P
Investment Advisers Registered and exempt Form ADV firms
IPO Feed S-1 registrations turned into structured data
Public Trackers Live web data, refreshed daily

Macro & catalysts

Economic Data Federal Reserve and macro indicators
Economic Calendar Upcoming macro data releases
FDA Calendar Upcoming FDA advisory-committee meetings
Congress Net Worth Richest members by disclosed net worth
Congress Leaderboard Members ranked by portfolio performance
Congress Trading Statistics Trades, late filings and top stocks per year

Resources

Research Data-driven market research & single-stock theses
Blog Guides to filings & financials, plus tool comparisons
Announcements Product updates, new data & milestones

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Short interest & flow

Most Shorted Squeeze Risk Largest Short Volume Highest Off-Exchange Share Reporting Calendar

Company intelligence

Earnings Call Transcripts Earnings Calendar SEC Filings Insider Sentiment Largest Buybacks Going-Concern Flags

Institutions 13F filings, portfolios & smart money

Fund Letters Start here

Discover institutions

Browse Filers Smart Money Index Superinvestors Top by AUM Most-Held Stocks

Portfolio activity

Quarterly Activity AUM Movers Last Quarter's Movers Double-Down Report Conviction Heat Map Most Crowded Stocks

Filings & analysis

Latest Filings 13F Trends 13F Holder Flows 13F Statistics Overlap Matrix Clone Backtest Beneficial Ownership

Markets Indexes, funds, macro & market events

Index Composition & Rebalance Start here

Funds & market activity

ETFs Insider Trading Registered Funds Investment Advisers IPO Feed Public Trackers

Macro & catalysts

Economic Data Economic Calendar FDA Calendar Congress Net Worth Congress Leaderboard Congress Trading Statistics

Resources Research, guides & product news

Research Blog Announcements

Docs Pricing Datasets

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Han Pu

Han Pu

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Developers

Documentation MCP server REST API 13F holdings API GitHub ↗

Resources

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Blog Comparisons Announcements Economic data People directory Organizations SEC filings Research methodology

Company +

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Data APIs

Earnings Call Transcript API Insider Trading API Congressional Trading API Short Interest API Options Chain API Stock Index Constituents API Supply Chain API Financial Statements API

Popular data

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