QuiverQuant
Broad Alternative Data
Gov contracts, ETF flows, Wikipedia trends, lobbying, and congressional trades. The widest net across alternative data categories.
Best for: broad alt-data research
Capitol Trades
Institutional Standard
The longest track record in congressional trading data (est. 2002). Cited by WSJ, NYT, and major financial outlets. Clean, credible, no-frills.
Best for: journalists & researchers
GovGreed
7-Layer Intelligence
189,595 trades scored across 7 layers. ML predictions, herd detection, bill-trade correlations, AI chatbot, and a REST API for algo traders.
Best for: active traders & algo builders
Head-to-Head Feature Comparison Every major feature across all three platforms, compared side by side
| Feature | QuiverQuant | Capitol Trades | GovGreed |
|---|---|---|---|
| Total Trades TrackedSTOCK Act disclosures (Senate + House) | 100K+ | 150K+ | 189,595 |
| Signal ScoringQuantitative score per trade | — | — | ✓ 7-layer (0-100) |
| Bill-Trade CorrelationsTrade timing matched to legislative action | — | — | ✓ 256,112 |
| ML PredictionsForward-looking trade probability | — | — | ✓ 819 active |
| Herd Detection3+ politicians converging on same ticker | — | — | ✓ 31 active signals |
| AI ChatbotNatural-language querying over trades | — | — | ✓ 10+ tools |
| REST APIProgrammatic JSON access | Limited Paid plans | — | ✓ Full (30-day free) |
| Campaign Money TrackingFEC contributions matched to trades | — | — | ✓ 565 patterns |
| Lobbying PatternsLDA filings cross-referenced with trades | — | — | ✓ 2,101 patterns |
| Individual Politician PagesPer-member trading profile | ✓ | ✓ | ✓ |
| News / AlertsContent and notifications | Auto-generated | 2-3 articles/mo | Weekly updates |
| Options FlowCongressional options tracking | — | — | — |
| Broad Market DataGov contracts, ETF flows, etc. | ✓ Contracts, ETFs, etc. | — | — |
| Institutional CredibilityMedia citations and track record | Good | Best (WSJ/NYT) | Growing |
| Mobile AppNative iOS/Android app | — | — | — |
| PricingStarting cost | Free + $25/mo | Free | Free + $24.50/mo Founders |
Platform Profiles A fair look at what each tool does well, where it falls short, and who it's built for
QuiverQuant: Broad Alternative Data
Strengths
- Widest data coverage — government contracts, lobbying disclosures, ETF flows, Wikipedia trends, patent data, and congressional trades all in one dashboard
- Large community — 415K+ Twitter followers and Stocktwits partnership bring real-time discussion
- Free tier — basic access to multiple alternative data categories without paying
- API access — paid plans provide programmatic access to their data feeds
Weaknesses
- No intelligence layer — raw data only, no scoring, no predictions, no cross-dataset correlation
- Auto-generated content — news and analysis are machine-produced with limited editorial oversight
- Congressional trading is one tab of many — depth is sacrificed for breadth
- URL encoding issues — some users report broken links and navigation quirks
Best For
Users who want broad alternative data across many categories — not just congressional trading. If congressional trades are one input in a larger multi-factor model, QuiverQuant's breadth is a strength.
Capitol Trades: Institutional Standard
Strengths
- Longest track record — operated by 2iQ Research since 2002, predating every competitor
- Media credibility — cited by the Wall Street Journal, New York Times, and other major financial outlets
- Clean UI — focused, no-frills interface purpose-built for browsing congressional filings
- Free access — core data is available without a subscription
Weaknesses
- Zero intelligence layer — no scoring, no ML, no cross-referencing with bills, lobbying, or campaign money
- No API — data is only available through the web interface, ruling out programmatic consumption
- Minimal content — 2-3 articles per month, no AI chatbot, no real-time alerts
- Weak social presence — limited community engagement compared to QuiverQuant and newer platforms
Best For
Journalists, academic researchers, and compliance teams who need a credible, established source for raw STOCK Act filings. If your use case is "verify what a politician traded" rather than "should I trade on this," Capitol Trades is the standard.
GovGreed: 7-Layer Intelligence Engine
Strengths
- 7-layer signal scoring — politician quality, herd detection, bill-trade correlation, technical analysis, sector momentum, campaign money, lobbying alignment. Every qualifying trade gets a composite 0-100 score
- ML predictions — 819 active predictions from 4 engines (committee markup, recurring patterns, signal bridging, bill correlation), covering 76 politicians
- AI chatbot — natural-language queries with 10+ tools that cross-reference trades, bills, signals, and predictions in real time
- REST API — 30 endpoints returning JSON, with 30-day free trial for waitlist members. Python and JavaScript examples included
- Deepest correlation data — 256,112 bill-trade correlations, 2,101 lobbying patterns, 565 campaign money patterns
Weaknesses
- Newer platform — does not yet have the institutional credibility or media citation history of Capitol Trades
- Smaller community — growing user base but not yet at QuiverQuant's scale
- No broad market data — focused exclusively on congressional trading intelligence. No government contracts, ETF flows, or Wikipedia trends
- Signal scoring requires meaningful trade size — only trades with midpoint above $50,000 receive full 7-layer scores (61 politicians covered)
Best For
Active traders and algo builders who want scored intelligence and predictions — not just raw filings. If your question is "which congressional trades are most likely to be profitable and why," GovGreed is the only platform that attempts to answer it.
The Bottom Line
If you want broad alternative data
QuiverQuant
Gov contracts, ETF flows, Wikipedia trends, and congressional trades — the widest net
If you want institutional credibility
Capitol Trades
Est. 2002, cited by WSJ and NYT. The standard for journalists and researchers
If you want intelligence, not just data
GovGreed
The only platform that answers "why" and "what's next" — with 7-layer scoring and ML predictions
Frequently Asked Questions
Which is the best congressional trading tracker?
It depends on what you need. Capitol Trades has the longest institutional history (est. 2002) and is cited by the WSJ and NYT. QuiverQuant offers the broadest alternative data beyond just congressional trades. GovGreed has the deepest intelligence layer — 7-layer signal scoring, 819 ML predictions, 256,112 bill-trade correlations, and an AI chatbot with 10+ analytical tools. For raw filings, Capitol Trades. For broad data, QuiverQuant. For scored intelligence, GovGreed.
Is QuiverQuant better than Capitol Trades?
They serve different audiences. QuiverQuant offers broader alternative data (gov contracts, ETF flows, Wikipedia trends) and has a larger social community (415K+ Twitter followers). Capitol Trades has a longer track record (est. 2002) and is more frequently cited in mainstream financial journalism. Neither offers signal scoring, ML predictions, or bill-trade correlation — those features are unique to GovGreed.
Does GovGreed have more data than QuiverQuant?
For congressional trading specifically, GovGreed tracks 189,595 trades from 343 politicians (2012–2026), plus 256,112 bill-trade correlations, 2,101 lobbying patterns, and 565 campaign money patterns that QuiverQuant does not have. However, QuiverQuant covers broader categories like government contracts, ETF flows, and Wikipedia trends that GovGreed does not. Deeper vs. wider — it depends on your use case.
Which congress trading tool has an API?
GovGreed provides a REST API with 30 endpoints (trades, signals, predictions, politician profiles) and a 30-day free trial. QuiverQuant offers limited API access on paid plans starting at $25/month. Capitol Trades does not offer a public API. See the GovGreed API documentation for endpoint reference and code examples.
Can I use multiple congressional trading tools?
Yes, and many serious traders do. A common setup: Capitol Trades for clean, credible raw filings; QuiverQuant for broader alternative data signals; and GovGreed for the intelligence layer — signal scoring, ML predictions, and the AI chatbot that cross-references trades with bills, lobbying, and campaign money. The tools complement each other.
Which tool is best for algorithmic trading?
GovGreed is purpose-built for programmatic consumption. It provides a REST API returning JSON, 7-layer signal scores (0–100) for qualifying trades, 819 active ML predictions updated daily, and Python/JavaScript examples for building trading bots. The trading bot guide walks through a complete Alpaca integration. QuiverQuant offers API access on paid plans but without a scoring layer. Capitol Trades has no API.