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Wisconsin, et al.](https://www.wied.uscourts.gov/sites/wied/files/documents/54%20-%20Order%20Denying%20Motions%2C%20Directing%20R16.pdf), E.D. Wis. 2:26-cv-00749", "Wisconsin · All registered exchanges", "Preliminary injunction denied (signed 28 July 2026); appeals in the Seventh Circuit; district case administratively closed", "9 Sep 2026", "Document" ], [ "[United States and CFTC v. Minnesota, et al.; KalshiEX LLC v. Ellison; QCX LLC (Polymarket US) v. Ellison](https://www.govinfo.gov/content/pkg/USCOURTS-mnd-0_26-cv-02661/pdf/USCOURTS-mnd-0_26-cv-02661-0.pdf), D. Minn. 0:26-cv-02661, with 26-cv-2778 and 26-cv-2841", "Minnesota · Kalshi, Polymarket US, All registered exchanges", "Preliminary injunctions granted in all three cases (27 July 2026): Minnesota may not enforce its prediction-market law against CFTC-registered exchanges until a final decision", "27 Jul 2026", "Document" ], [ "[United States and CFTC v. 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Ariz. 2:26-cv-01715 and 2:26-cv-02246; 9th Cir. 26-2978", "Arizona · Kalshi, All registered exchanges", "Preliminary injunction for the United States and CFTC against Arizona's criminal and civil enforcement (5 May 2026); Kalshi's own motion denied; on appeal", "11 May 2026", "Document" ], [ "[United States and CFTC v. New York, et al.](https://www.cftc.gov/media/13766/ENFNewYorkComplanit042426/download), S.D.N.Y. 1:26-cv-03404", "New York · Kalshi, Coinbase, Gemini", "Complaint (allegations); no ruling seen in a court document", "24 Apr 2026", "Partly: complaint" ], [ "[United States and CFTC v. Connecticut, et al.](https://www.cftc.gov/media/13626/EnfNedLamontComplaint040226/download), D. Conn. 3:26-cv-00498", "Connecticut · Kalshi, Crypto.com, Robinhood", "Complaint (allegations); no ruling seen", "2 Apr 2026", "Partly: complaint" ], [ "[United States and CFTC v. Illinois, et al.](https://www.cftc.gov/media/13621/EnfJBPritzkerComplaint040226/download), N.D. 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Nevada, No. 26-344", "url": "https://www.supremecourt.gov/docket/docketfiles/html/public/26-344.html", "note": "Response due 15 October 2026" }, { "label": "Supreme Court — October Term 2026 calendar", "url": "https://www.supremecourt.gov/oral_arguments/2026TermCourtCalendar.pdf", "note": "The term opens on 5 October 2026" }, { "label": "U.S. Court of Appeals, Third Circuit — KalshiEX v. Flaherty, No. 25-1922 (6 Apr 2026)", "url": "https://www2.ca3.uscourts.gov/opinarch/251922p.pdf", "note": "Precedential opinion" }, { "label": "U.S. Court of Appeals, Ninth Circuit — KalshiEX v. Assad, No. 25-7516 (28 Aug 2026)", "url": "https://cdn.ca9.uscourts.gov/datastore/opinions/2026/08/28/25-7516.pdf", "note": "Published opinion" }, { "label": "U.S. Court of Appeals, Sixth Circuit — KalshiEX v. Schuler and KalshiEX v. 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Observation windows and populations are stated in the source captions and methodology. Missing metadata is unknown, not zero. Lists court cases and filings up to 27 September 2026 as the court record shows them; complaints are allegations and most rulings are on preliminary relief. Nothing here is legal advice.", "downloads": { "json": "https://vultax.com/research/prediction-market-lawsuit-tracker/data.json?dataset=federal-suits-against-states-table", "csv": "https://vultax.com/research/prediction-market-lawsuit-tracker/data.csv?dataset=federal-suits-against-states-table" } }, { "title": "Exchanges against states (6)", "columns": [ { "name": "Case", "unit": null }, { "name": "State and venue", "unit": null }, { "name": "Status", "unit": null }, { "name": "Latest entry", "unit": null }, { "name": "Checked", "unit": null } ], "rows": [ [ "[QCX LLC (Polymarket US) v. James, et al.](https://storage.courtlistener.com/recap/gov.uscourts.nysd.673553/gov.uscourts.nysd.673553.1.0.pdf), S.D.N.Y. 1:26-cv-08345", "New York · Polymarket US", "Complaint: asks for New York's gambling laws to be declared pre-empted as applied to Polymarket US; no ruling", "25 Sep 2026", "Document" ], [ "[KalshiEX LLC v. Martin, et al.](https://www.govinfo.gov/content/pkg/USCOURTS-mdd-1_25-cv-01283/pdf/USCOURTS-mdd-1_25-cv-01283-0.pdf), 4th Cir. 25-1892, from D. Md. 1:25-cv-01283", "Maryland · Kalshi", "Argued 7 May 2026, undecided; the denial of Kalshi's injunction stands; Kalshi has told the court of a forthcoming CFTC regulation", "25 Sep 2026", "Document" ], [ "[QCX LLC (Polymarket US) v. Nessel, et al.](https://storage.courtlistener.com/recap/gov.uscourts.miwd.119537/gov.uscourts.miwd.119537.41.0.pdf), W.D. Mich. 1:26-cv-00710; 6th Cir. 26-1552", "Michigan · Polymarket US", "Preliminary injunction denied (17 June 2026); appeal being briefed", "16 Sep 2026", "Document" ], [ "[KalshiEX LLC v. Cafferelli, et al.](https://ecf.ctd.uscourts.gov/cgi-bin/show_public_doc?2025cv2016-99=), D. Conn. 3:25-cv-02016; 2d Cir. 26-2239", "Connecticut · Kalshi", "Preliminary injunction denied (order signed 7 August 2026, entered 10 August); injunction pending appeal denied 15 August; appeal pending; district case paused", "25 Aug 2026", "Document" ], [ "[KalshiEX LLC v. Williams, et al.](https://ag.ny.gov/sites/default/files/court-filings/kalshiex-llc-v-new-york-state-gaming-commission-et-al-opinion-and-order-2026.pdf), S.D.N.Y. 1:25-cv-08846; 2d Cir. 26-1835", "New York · Kalshi", "Preliminary injunction denied (7 July 2026); appeal pending, heard with the Connecticut appeal", "21 Aug 2026", "Document" ], [ "[KalshiEX LLC v. Furcolo, et al.](https://www.cftc.gov/media/14056/OGC_RhodeIslandMotionIntervene052826/download), D.R.I. 1:26-cv-00327", "Rhode Island · Kalshi", "The United States and CFTC moved to join Kalshi's suit; outcome not verified", "28 May 2026", "Partly: motion to intervene" ] ], "measurementContext": "Checked 27 September 2026 against the court's own document, the docket index only, or partly (the part read is named). Each case links to its document or docket. Complaints and petitions are allegations. Latest entry is the most recent dated entry seen.", "sources": [ { "label": "Supreme Court docket — Flaherty v. KalshiEX, No. 26-299", "url": "https://www.supremecourt.gov/docket/docketfiles/html/public/26-299.html", "note": "Response extended to 9 November 2026" }, { "label": "Supreme Court docket — Robinhood Derivatives v. Dreitzer, No. 26-338", "url": "https://www.supremecourt.gov/docket/docketfiles/html/public/26-338.html", "note": "Response due 14 October 2026" }, { "label": "Supreme Court docket — North American Derivatives Exchange v. Nevada, No. 26-344", "url": "https://www.supremecourt.gov/docket/docketfiles/html/public/26-344.html", "note": "Response due 15 October 2026" }, { "label": "Supreme Court — October Term 2026 calendar", "url": "https://www.supremecourt.gov/oral_arguments/2026TermCourtCalendar.pdf", "note": "The term opens on 5 October 2026" }, { "label": "U.S. Court of Appeals, Third Circuit — KalshiEX v. Flaherty, No. 25-1922 (6 Apr 2026)", "url": "https://www2.ca3.uscourts.gov/opinarch/251922p.pdf", "note": "Precedential opinion" }, { "label": "U.S. Court of Appeals, Ninth Circuit — KalshiEX v. Assad, No. 25-7516 (28 Aug 2026)", "url": "https://cdn.ca9.uscourts.gov/datastore/opinions/2026/08/28/25-7516.pdf", "note": "Published opinion" }, { "label": "U.S. Court of Appeals, Sixth Circuit — KalshiEX v. Schuler and KalshiEX v. 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Observation windows and populations are stated in the source captions and methodology. Missing metadata is unknown, not zero. Lists court cases and filings up to 27 September 2026 as the court record shows them; complaints are allegations and most rulings are on preliminary relief. Nothing here is legal advice.", "downloads": { "json": "https://vultax.com/research/prediction-market-lawsuit-tracker/data.json?dataset=exchanges-against-states-table", "csv": "https://vultax.com/research/prediction-market-lawsuit-tracker/data.csv?dataset=exchanges-against-states-table" } }, { "title": "State and city enforcement (15)", "columns": [ { "name": "Case", "unit": null }, { "name": "State and venue", "unit": null }, { "name": "Status", "unit": null }, { "name": "Latest entry", "unit": null }, { "name": "Checked", "unit": null } ], "rows": [ [ "[People of the State of New York v. QCX LLC (Polymarket US)](https://ag.ny.gov/sites/default/files/court-filings/new-york-v-polymarket-us-petition-2026.pdf), N.Y. Supreme Court, New York County; removed, S.D.N.Y. 1:26-cv-08338", "New York · Polymarket US", "Petition (allegations): unlicensed gambling, including for users aged 18 to 20; removed to federal court; no ruling", "25 Sep 2026", "Document" ], [ "[State of Washington v. KalshiEX LLC](https://agportal-s3bucket.s3.us-west-2.amazonaws.com/Consumer%20Protection/64_OrdGrantAmendMtnPI.pdf?VersionId=a9FvcaBwWpQETWxbKUdHL1jqjTOD6XAi), King County Superior Court 26-2-10264-3 SEA; 9th Cir. 26-3106", "Washington · Kalshi", "Preliminary injunction (12 August 2026): Kalshi must stop offering sports, election and other listed contracts in Washington; Kalshi's appeal of the remand paused", "23 Sep 2026", "Document" ], [ "[State of Wisconsin v. QCX LLC (Polymarket US)](https://www.courtlistener.com/docket/73240102/state-of-wisconsin-v-qcx-llc/), Dane County 26cv1285; removed, W.D. Wis. 3:26-cv-00375", "Wisconsin · Polymarket US", "Removed to federal court; remand and transfer motions pending", "22 Sep 2026", "Docket only" ], [ "[State of Wisconsin v. Kalshi Inc., et al.](https://www.courtlistener.com/docket/73243156/state-of-wisconsin-v-kalshi-inc/), Dane County 26-CV-1284; removed, W.D. Wis. 3:26-cv-00378", "Wisconsin · Kalshi, Coinbase, Robinhood", "Removed to federal court; remand and preliminary-injunction motions pending", "22 Sep 2026", "Docket only" ], [ "[People of the State of New York v. Coinbase Financial Markets](https://ag.ny.gov/sites/default/files/court-filings/new-york-v-coinbase-financial-markets-inc-petition-2026.pdf), Index 451604/2026; removed, S.D.N.Y. 1:26-cv-03300", "New York · Coinbase", "Petition (allegations); remand motion pending", "18 Sep 2026", "Document" ], [ "[State of Nevada v. KalshiEX LLC](https://storage.courtlistener.com/recap/gov.uscourts.ca9.38c1b55e-7870-40ad-a65f-e00e8f69a603/gov.uscourts.ca9.38c1b55e-7870-40ad-a65f-e00e8f69a603.20.0.pdf), D. Nev. 2:26-cv-00406; 9th Cir. 26-1304", "Nevada · Kalshi", "Sent back to state court; Ninth Circuit refused Kalshi a stay; appeal pending", "18 Sep 2026", "Partly: Ninth Circuit stay order" ], [ "[State of Connecticut v. KalshiEX LLC](https://storage.courtlistener.com/recap/gov.uscourts.ctd.172615/gov.uscourts.ctd.172615.1.1.pdf), Hartford Superior Court; removed, D. Conn. 3:26-cv-01382", "Connecticut · Kalshi", "Complaint (allegations); remand motion pending; deadlines paused", "17 Sep 2026", "Document" ], [ "[People of the State of New York v. Gemini Titan](https://ag.ny.gov/sites/default/files/court-filings/new-york-v-gemini-titan-llc-petition-2026.pdf), Index 451603/2026; removed, S.D.N.Y. 1:26-cv-03318", "New York · Gemini", "Petition (allegations); remand motion pending", "31 Aug 2026", "Document" ], [ "[People of the State of New York v. KalshiEX LLC](https://ag.ny.gov/sites/default/files/court-filings/new-york-v-kalshiex-llc-petition-2026.pdf), N.Y. Supreme Court; removed, S.D.N.Y. 1:26-cv-06550", "New York · Kalshi", "Petition (allegations); remand motion fully briefed, undecided; no preliminary relief entered", "28 Aug 2026", "Document" ], [ "[State of Nevada v. Blockratize Inc. (Polymarket), et al.](https://storage.courtlistener.com/recap/gov.uscourts.nvd.179406/gov.uscourts.nvd.179406.41.0.pdf), Carson City district court; D. Nev. 3:26-cv-00089; 9th Cir. 26-1343", "Nevada · polymarket.com, Polymarket US", "Restraining order in state court (29 January 2026); sent back to state court 2 March; Ninth Circuit refused Polymarket a stay; appeal pending", "28 Aug 2026", "Document" ], [ "[Nessel (Michigan Attorney General) v. KalshiEX LLC](https://storage.courtlistener.com/recap/gov.uscourts.miwd.119560/gov.uscourts.miwd.119560.20.0.pdf), Ingham County Circuit Court; W.D. Mich. 1:26-cv-00731; 6th Cir. 26-1639", "Michigan · Kalshi", "Sent back to state court; Kalshi's appeal held for the Ohio and Tennessee appeals, decided 25 September", "24 Aug 2026", "Document" ], [ "[City of Baltimore v. QCX LLC (Polymarket US), et al.](https://dicellolevitt.com/wp-content/uploads/2026/08/Polymarket-City-of-Baltimore-Complaint.pdf), Baltimore City Circuit Court; removed, D. Md. 1:26-cv-03253", "Maryland · Polymarket US", "Complaint (allegations) under the city's consumer-protection ordinance; removed; no ruling seen", "21 Aug 2026", "Document" ], [ "[City of Baltimore v. KalshiEX LLC, et al.](https://dicellolevitt.com/wp-content/uploads/2026/08/Kalshi-City-of-Baltimore-Complaint.pdf), Baltimore City Circuit Court; removed, D. Md. 1:26-cv-03217", "Maryland · Kalshi", "Complaint (allegations) under the city's consumer-protection ordinance; removed; no ruling seen", "17 Aug 2026", "Document" ], [ "[Commonwealth of Kentucky v. QCX LLC (Polymarket US)](https://www.courtlistener.com/docket/73504311/commonwealth-of-kentucky-v-qcx-llc/), Franklin Circuit Court 26-CI-696; removed, E.D. Ky. 3:26-cv-00047", "Kentucky · Polymarket US", "Removed to federal court; remand motion pending", "28 Jul 2026", "Docket only" ], [ "[Commonwealth of Massachusetts v. KalshiEX LLC](https://www.mass.gov/doc/kalshi-pi-order/download), Suffolk Superior Court 2584CV02525; SJC-13906", "Massachusetts · Kalshi", "Preliminary injunction allowed (20 January 2026); appeal at the Supreme Judicial Court; stayed pending appeal, according to the Connecticut federal court", "Not seen", "Partly: Superior Court ruling" ] ], "measurementContext": "Checked 27 September 2026 against the court's own document, the docket index only, or partly (the part read is named). Each case links to its document or docket. Complaints and petitions are allegations. Latest entry is the most recent dated entry seen.", "sources": [ { "label": "Supreme Court docket — Flaherty v. KalshiEX, No. 26-299", "url": "https://www.supremecourt.gov/docket/docketfiles/html/public/26-299.html", "note": "Response extended to 9 November 2026" }, { "label": "Supreme Court docket — Robinhood Derivatives v. Dreitzer, No. 26-338", "url": "https://www.supremecourt.gov/docket/docketfiles/html/public/26-338.html", "note": "Response due 14 October 2026" }, { "label": "Supreme Court docket — North American Derivatives Exchange v. Nevada, No. 26-344", "url": "https://www.supremecourt.gov/docket/docketfiles/html/public/26-344.html", "note": "Response due 15 October 2026" }, { "label": "Supreme Court — October Term 2026 calendar", "url": "https://www.supremecourt.gov/oral_arguments/2026TermCourtCalendar.pdf", "note": "The term opens on 5 October 2026" }, { "label": "U.S. Court of Appeals, Third Circuit — KalshiEX v. Flaherty, No. 25-1922 (6 Apr 2026)", "url": "https://www2.ca3.uscourts.gov/opinarch/251922p.pdf", "note": "Precedential opinion" }, { "label": "U.S. Court of Appeals, Ninth Circuit — KalshiEX v. 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KalshiEX, No. 26-299", "url": "https://www.supremecourt.gov/docket/docketfiles/html/public/26-299.html", "note": "Response extended to 9 November 2026" }, { "label": "Supreme Court docket — Robinhood Derivatives v. Dreitzer, No. 26-338", "url": "https://www.supremecourt.gov/docket/docketfiles/html/public/26-338.html", "note": "Response due 14 October 2026" }, { "label": "Supreme Court docket — North American Derivatives Exchange v. Nevada, No. 26-344", "url": "https://www.supremecourt.gov/docket/docketfiles/html/public/26-344.html", "note": "Response due 15 October 2026" }, { "label": "Supreme Court — October Term 2026 calendar", "url": "https://www.supremecourt.gov/oral_arguments/2026TermCourtCalendar.pdf", "note": "The term opens on 5 October 2026" }, { "label": "U.S. Court of Appeals, Third Circuit — KalshiEX v. Flaherty, No. 25-1922 (6 Apr 2026)", "url": "https://www2.ca3.uscourts.gov/opinarch/251922p.pdf", "note": "Precedential opinion" }, { "label": "U.S. Court of Appeals, Ninth Circuit — KalshiEX v. Assad, No. 25-7516 (28 Aug 2026)", "url": "https://cdn.ca9.uscourts.gov/datastore/opinions/2026/08/28/25-7516.pdf", "note": "Published opinion" }, { "label": "U.S. Court of Appeals, Sixth Circuit — KalshiEX v. Schuler and KalshiEX v. Orgel (25 Sep 2026)", "url": "https://www.opn.ca6.uscourts.gov/opinions.pdf/26a0272p-06.pdf", "note": "Recommended for publication" }, { "label": "CFTC — release 9206-26: suits against Arizona, Connecticut and Illinois (2 Apr 2026)", "url": "https://www.cftc.gov/PressRoom/PressReleases/9206-26", "note": "The first of the federal suits against states" }, { "label": "CFTC — release 9218-26: suit against New York (24 Apr 2026)", "url": "https://www.cftc.gov/PressRoom/PressReleases/9218-26", "note": null }, { "label": "CFTC — release 9220-26: suit against Wisconsin (28 Apr 2026)", "url": "https://www.cftc.gov/PressRoom/PressReleases/9220-26", "note": null }, { "label": "CFTC — release 9233-26: suit against Minnesota (19 May 2026)", "url": "https://www.cftc.gov/PressRoom/PressReleases/9233-26", "note": null }, { "label": "CFTC — release 9238-26: joining Kalshi's suit against Rhode Island (28 May 2026)", "url": "https://www.cftc.gov/PressRoom/PressReleases/9238-26", "note": null }, { "label": "CFTC — release 9251-26: suit against New Mexico (12 Jun 2026)", "url": "https://www.cftc.gov/PressRoom/PressReleases/9251-26", "note": null }, { "label": "CFTC — release 9260-26: suit against Kentucky (23 Jun 2026)", "url": "https://www.cftc.gov/PressRoom/PressReleases/9260-26", "note": null }, { "label": "CFTC — release 9217-26: insider-trading charges over the operation to capture Nicolás Maduro (23 Apr 2026)", "url": "https://www.cftc.gov/PressRoom/PressReleases/9217-26", "note": "Allegations" }, { "label": "CFTC — release 9237-26: insider-trading charges over Google's Year in Search (27 May 2026)", "url": "https://www.cftc.gov/PressRoom/PressReleases/9237-26", "note": "Allegations" }, { "label": "CourtListener — RECAP archive of federal dockets", "url": "https://www.courtlistener.com/", "note": "Copies of federal docket entries and filings; can lag the court" }, { "label": "Vultax: Is Polymarket legal in the US?", "url": "https://vultax.com/research/is-polymarket-legal-in-the-us-2026", "note": "What the cases mean venue by venue and state by state" }, { "label": "Vultax: Polymarket insider trading, the charged cases", "url": "https://vultax.com/research/polymarket-longshot-insider-screen-base-rate", "note": "How an insider screen treats the two charged cases" } ], "measurement": { "kind": "reference", "temporalCoverage": "2025-09/2026-09", "population": "2 of 49 tracked cases: insider-trading prosecutions", "methodology": "Each row checked against the court's own opinion, order, complaint, petition or docket up to 27 September 2026." }, "id": "insider-trading-prosecutions-table", "kind": "published-table", "description": "Every court case Vultax follows over sports and event contracts, from Supreme Court petitions to class actions and two insider-trading prosecutions: 49 in all, each checked against the court's own documents or docket on 27 September 2026, with the next deadlines first.", "articleUrl": "https://vultax.com/research/prediction-market-lawsuit-tracker", "sectionUrl": "https://vultax.com/research/prediction-market-lawsuit-tracker#insider-trading-prosecutions", "publishedAt": "2026-10-01", "modifiedAt": "2026-10-01", "version": "98a9fb758fdff20b3abd130c2076ce27775608bcf0c602203dea3f0f3984b266", "isLive": false, "limitations": "Published research snapshots and calculations; these exports do not contain current quotes or live account data. Observation windows and populations are stated in the source captions and methodology. Missing metadata is unknown, not zero. Lists court cases and filings up to 27 September 2026 as the court record shows them; complaints are allegations and most rulings are on preliminary relief. Nothing here is legal advice.", "downloads": { "json": "https://vultax.com/research/prediction-market-lawsuit-tracker/data.json?dataset=insider-trading-prosecutions-table", "csv": "https://vultax.com/research/prediction-market-lawsuit-tracker/data.csv?dataset=insider-trading-prosecutions-table" } } ] }