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Overlap Matrix Compare filer portfolios side by side
Clone Backtest Backtest a combined clone of several filers
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13F Activity

13F Statistics Aggregate filing statistics
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13F Trends Sector and flow trends
Double-Down Report Increased-conviction buys
Conviction Heat Map Crowded positions at a glance

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IPO Feed S-1 registrations turned into structured data
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Congress Leaderboard Members ranked by portfolio performance

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Short interest & flow

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

Ownership & fundamentals

Insider Sentiment Largest Buybacks Going-Concern Flags

Institutions 13F filings, portfolios & smart money

Filers & Rankings

Browse Filers Top by AUM Smart Money Index Superinvestors AUM Movers Most-Held Stocks Last Quarter's Movers Overlap Matrix Clone Backtest Beneficial Ownership

13F Activity

13F Statistics Latest Filings 13F Trends Double-Down Report Conviction Heat Map

Markets Insiders, funds, macro, IPOs & Congress

Insider Trading Funds & ETFs Investment Advisers Economic Data Economic Calendar FDA Calendar IPO Feed Congress Net Worth Congress Leaderboard

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Chris Ellenhouse

Chris Ellenhouse

Analyst

Analyst — Siebert Williams Shank

Earnings-call appearances

Q2 2026 Earnings Conference Call
Mdu Resources Group Inc (MDU)

2026-08-06

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