Capitol TrackerHow Capitol Tracker compares
Most trading-intelligence sites make you choose: an options-flow platform that happens to log a few politician trades as an afterthought, a sprawling alternative-data feed spanning everything from lobbying to Google Trends, or a free but single-purpose congressional tracker with nothing on corporate insiders or institutional funds. Capitol Tracker is built around one question — who's trading with an edge, and what are they buying — across all three sources that actually answer it: Congress under the STOCK Act, corporate insiders' Form 4 filings, and institutional 13F "whale" holdings, cross-linked so a single stock page shows all three at once. Every entry links straight back to the primary SEC filing, not a summary of one.
Capitol Tracker vs Unusual Whales
$50–$120/moAn options-flow platform that also logs politician trades
Unusual Whales is built around options flow, dark pool prints, and Greeks — GEX heatmaps, market maker exposure, an options profit calculator. Congressional and insider trade data is one feature bullet among a dozen others, not what the product is designed around. Its free tier exists but is limited, with a 15-minute data delay.
Capitol Tracker vs Quiver Quantitative
Free browsing, premium tiers for toolsA broad alternative-data feed spanning far beyond trading
Quiver covers congress trading and insider trading alongside lobbying, government contracts, patents, app store ratings, and Google Trends — a wide net of loosely related datasets. The deeper analysis tools (alerts, screeners, backtesting, the politician leaderboard) sit behind a premium subscription.
Capitol Tracker vs Capitol Trades
FreeFree and well-regarded, but Congress only
Capitol Trades is a solid, free, congress-only tracker cited by outlets like the Wall Street Journal. It doesn't cover corporate insider Form 4 filings or institutional 13F “whale” holdings — just congressional disclosures.
Where Capitol Tracker fits
Free to browse today's biggest congress, insider, and whale filings. Full history, search, and watchlists for $9/month — a fraction of what the options-flow platforms charge for a feature they treat as secondary.
Pricing and feature details above reflect each competitor's own public pricing page as of September 2026 and are subject to change on their end. Capitol Tracker isn't affiliated with or endorsed by Unusual Whales, Quiver Quantitative, or Capitol Trades.