Insider & congressional trading trackers compared
Facts checked on September 27, 2026 from each service’s public pages
Whale Atlas is free with no sign-up, shows SEC Form 4 insider trades and U.S. House and Senate members’ stock trades together, and links every trade to its original government filing.
Paid services offer features Whale Atlas does not, such as options-flow data and alerts. If you mainly want to see who is buying and selling, and check it against the source, Whale Atlas gives you that for free.
| Feature | Whale Atlas | Unusual Whales | Quiver Quantitative | Capitol Trades | OpenInsider |
|---|---|---|---|---|---|
| Cost to use | Free, everything | Free plan with delayed data; paid plans from $50/mo | Some data free; Premium subscription | Free (per its publisher) | Free |
| Account required | No | Not verified; see their site | Not for basic congressional lists | Not verified; see their site | No |
| Insider trades (SEC Form 4) | Yes | Yes, in paid plans | Yes | No | Yes |
| Congressional trades | Yes (House; Senate not yet) | Yes | Yes | Yes | No |
| Insider + congressional in one ranked view | Yes (Home page) | Not verified; see their site | Not verified; see their site | No (congressional only) | No (insider only) |
| Link to the original government filing on each trade | Yes, every trade | Not verified; see their site | Not verified; see their site | Not verified; see their site | Yes (SEC EDGAR) |
| Unverifiable filing values filtered out of totals | Yes | Not verified; see their site | Not verified; see their site | Not verified; see their site | Not verified; see their site |
When Whale Atlas is a good fit
- You want the largest disclosed insider and congressional buys and sells in one ranked list, updated automatically.
- You want to check every number against the original filing on SEC EDGAR, the House Clerk or the Senate eFD website.
- You don’t want to create an account or pay a subscription.
When another service may fit better
- You need options-flow, dark-pool or real-time alert features (offered by some paid services).
- You need Senate trades today (Whale Atlas currently covers the House).
Sources and notes
Competitor details come from each service’s public pages on September 27, 2026; Capitol Trades details come from its publisher’s announcement because its site could not be loaded for verification. Offerings and prices change. Always check each service’s own site. Cells marked “Not verified; see their site” could not be confirmed from an official page.
- Unusual Whales pricing
- Quiver Quantitative congressional trading
- Quiver Quantitative pricing
- Capitol Trades launch announcement (2iQ Research)
- OpenInsider
Whale Atlas is not affiliated with, endorsed by or sponsored by Unusual Whales, Quiver Quantitative, Capitol Trades, 2iQ Research or OpenInsider. Names are used only to identify their services, and belong to their respective owners. This page states facts, not opinions about any service. Spotted something inaccurate or out of date? Tell us: we review every report within two business days and correct or remove anything we cannot confirm.