Availability · Connecticut

Are prediction markets legal in Connecticut?

Contested. Connecticut sent cease-and-desist letters to Kalshi and, in September 2026, to nine more companies. A federal court refused to block the state in August, and on 3 November the Second Circuit refused to pause enforcement during Kalshi’s appeal. Connecticut has sued Kalshi in its own courts, and the CFTC is suing Connecticut.

Of the 57 platforms we review, 12 are open in Connecticut, 5 with restrictions and 27 not at all; for 13 the terms do not say. Sports betting in Connecticut: legal, regulated by the Department of Consumer Protection (storage.courtlistener.com).

Not legal advice. Eligibility usually follows where you are when you trade, and a platform can refuse an individual account. Checked 9 November 2026.

What Connecticut has done 11

  1. multistate amicus brief (Second Circuit, No. 26-1835)Kalshi

    Attorneys General of Ohio, Nevada, 35 other states, D.C. and the Northern Mariana Islands. Brief supporting New York's Gaming Commission in Kalshi's appeal from the denial of a preliminary injunction against New York's cease-and-desist, arguing federal commodities law does not displace state gambling law.

    Status: Appeal pending · oag.ca.gov ↗

  2. multistate amicus brief (Seventh Circuit, Nos. 26-2636, 26-2675, 26-2696)Kalshi, Polymarket, Crypto.com Prediction Markets

    Attorneys General of Ohio, Nevada, 36 other states, D.C. and the Northern Mariana Islands. Brief supporting Wisconsin in the CFTC's appeal from the denial of a preliminary injunction against Wisconsin's gambling suits, arguing the Commodity Exchange Act does not clearly displace state power over gambling.

    Status: Appeal pending · oag.ca.gov ↗

  3. injunction pending appeal deniedKalshi

    US Court of Appeals, Second Circuit. The panel refused to block enforcement while Kalshi's appeals against New York (No. 26-1835) and Connecticut (No. 26-2239) and Coinbase's appeal against Connecticut (No. 26-2297) proceed, so both states can enforce in the meantime.

    Status: Appeals pending, heard in tandem · courtlistener.com ↗

  4. multistate amicus brief (Tenth Circuit, No. 26-4100)Kalshi

    Attorneys General of Ohio, Nevada, 35 other states, D.C. and the Northern Mariana Islands. Brief supporting Utah in Kalshi's appeal from the Utah judgment, arguing Kalshi's preemption theory would leave sports betting largely unregulated and that the CFTC's new reading deserves no deference.

    Status: Appeal pending; Kalshi's reply due 12 Nov 2026 · oag.ca.gov ↗

  5. multistate amicus brief (US Supreme Court, No. 26-299)Kalshi

    Attorneys General of Ohio, 38 other states and D.C.. Brief supporting New Jersey's petition for Supreme Court review of the Third Circuit's ruling for Kalshi, arguing courts are divided over whether the Commodity Exchange Act preempts state sports-gambling laws.

    Status: Petition pending; Kalshi's response due 7 Dec 2026 · supremecourt.gov ↗

  6. lawsuit (platform v. state)Underdog Predictions

    Underdog Exchange DCM, Inc. and UDM, LLC v. Tong et al., D. Conn. No. 3:26-cv-01499. Underdog sued Connecticut's Attorney General and Consumer Protection Commissioner, challenging the cease-and-desist order issued to it on 10 September.

    Status: Pending; no ruling found · courtlistener.com ↗

  7. cease-and-desistPolymarket, Crypto.com Prediction Markets, ProphetX, Novig, Underdog Predictions

    Connecticut Department of Consumer Protection (announced by Governor Lamont). The Department issued nine cease-and-desist orders to companies offering sports event contracts in Connecticut, among them Coinbase, Webull and Gemini, ordering them to stop offering and advertising them and to let residents withdraw their funds.

    Status: Orders issued; Underdog sued on 15 Sep 2026 · portal.ct.gov ↗

  8. lawsuitKalshi

    State of Connecticut (AG Tong / DCP). CT filed a verified complaint in Hartford Superior Court (HHD-CV26-6230345-S) seeking temporary and permanent injunctions, disgorgement, restitution and CUTPA penalties. Kalshi removed it the same day (D. Conn. 3:26-cv-01382).

    Status: Remand motion fully briefed (8 Oct 2026); no ruling · storage.courtlistener.com ↗

  9. preliminary injunction deniedKalshi

    US District Court, D. Conn. (Judge Oliver), KalshiEX v. Cafferelli (3:25-cv-02016). The court denied Kalshi's PI against CT enforcement (memorandum dated 7 Aug, docketed 10 Aug). An injunction pending appeal was denied on 15 Aug, and the Second Circuit denied a temporary injunction on 19 Aug, referring the motion to a panel.

    Status: Appeal pending (2d Cir. No. 26-2239); injunction pending appeal refused 3 Nov 2026; Connecticut's brief due 20 Nov · storage.courtlistener.com ↗

  10. lawsuit (federal government v. state)Kalshi, Crypto.com Prediction Markets

    United States & CFTC, federal suit v. State of Connecticut (D. Conn. 3:26-cv-00498). The US and CFTC sued Connecticut over enforcement against DCMs, naming Kalshi and NADEX/Crypto.com in the complaint. A PI motion was filed on 11 Sep 2026, with responses due 2 Oct 2026.

    Status: PI motion fully briefed (29 Oct 2026), as is the state's motion to dismiss; no ruling · storage.courtlistener.com ↗

  11. cease-and-desistKalshi

    Connecticut Department of Consumer Protection. DCP emailed Kalshi a cease-and-desist letter over sports contracts (as recited in the D. Conn. PI decision).

    Status: Kalshi sued on 3 Dec 2025; by stipulation of 8 Dec 2025 the state held off enforcement until the PI ruling · storage.courtlistener.com ↗

Every state’s actions on one dated timeline: the prediction market regulation tracker.

Prediction market apps you can use in Connecticut 10

  • KalshiiOS / Android app7.7

    KalshiEX is a CFTC-designated contract market and its Member Agreement names no US state as restricted. State court orders block some contract categories in Nevada, Washington and Michigan; elsewhere its contracts are available. Kalshi is in litigation with about 20 states, so this can change quickly.

  • OGiOS / Android app7.1

    Help centre: “currently available in all U.S. states”, though some event contracts may be unavailable in some states (not named). App Store: “Available in all 50 US states”. New York has separate funding and portfolio articles.

  • NovigiOS / Android app6.5

    “Novig is available nationwide except Arizona, Nevada, Michigan and Ohio” (Novig’s state page, updated 4 November 2026); its help centre still lists only Arizona, Nevada and Michigan. Eligibility is based on physical location when you trade, and users must be 21 or older.

  • DraftKings PredictionsiOS / Android app6.3

    DraftKings' own availability page (updated 2026-07-22) lists 48 states for Predictions, plus DC and US territories. Access depends on physical location and excludes tribal land. Sports markets vary by state; the breakdown is shown only as an image that could not be read. The official availability page and Predictions Terms returned 403.

  • FanDuel PredictsiOS / Android app6.2

    FanDuel Predicts is available in all 50 states and DC. Users must be 18+ and verify their identity. It is not available on or near tribal land.

  • Crypto.com Prediction MarketsiOS / Android app5.8

    Prediction Trading (and Sports Event Trading) is a CFTC-regulated feature of the Crypto.com App, offered through Crypto.com | Derivatives North America. The help centre says it is available in the US only.

  • Polymarket USiOS / Android app · with restrictions7.3

    QCX LLC publishes no list of eligible or excluded states. A Nevada court granted a preliminary injunction against QCX LLC d/b/a Polymarket US on 29 May 2026 (Nevada Gaming Control Board). Missouri's Attorney General has sent a cease-and-desist over sports contracts, and New York has announced a lawsuit; neither state is marked closed because the operator has not said it geoblocks them.

  • PolymarketiOS / Android app · with restrictions6.9

    The international polymarket.com site is closed to US residents: no deposits and no trades. The help centre lists the US as blocked and the API docs list it as close-only. US residents are sent to the separate Polymarket US app, run by QCX LLC (a CFTC DCM). Polymarket US state-level eligibility was not verified because its ToS page loads its text client-side.

  • ProphetXiOS / Android app · with restrictions5.9

    ProphetX says it is “available nationwide” but publishes no excluded-state list; its help centre says access “is restricted from certain locations and IP addresses”. Connecticut reportedly ordered it to stop offering sports contracts to residents (September 2026); the order could not be read on the regulator’s site.

  • Underdog PredictionsiOS / Android app · with restrictions5.3

    Only in states where Underdog Predict operates: "Must be 18+ and present in a state where Underdog Predict operates". The operator's state list (help centre) could not be read, so other states are unconfirmed.

Every prediction market app compared: fees, deposits and sign-up →

Available 12

  • KalshiRegulated exchange7.7Available

    KalshiEX is a CFTC-designated contract market and its Member Agreement names no US state as restricted. State court orders block some contract categories in Nevada, Washington and Michigan; elsewhere its contracts are available. Kalshi is in litigation with about 20 states, so this can change quickly.

    Source: news.kalshi.com ↗ · checked 28 Sept 2026Read the review →

  • OGRegulated exchange7.1Available

    Help centre: “currently available in all U.S. states”, though some event contracts may be unavailable in some states (not named). App Store: “Available in all 50 US states”. New York has separate funding and portfolio articles.

    Source: help.og.com ↗ · checked 1 Oct 2026Read the review →

  • NovigRegulated exchange6.5Available

    “Novig is available nationwide except Arizona, Nevada, Michigan and Ohio” (Novig’s state page, updated 4 November 2026); its help centre still lists only Arizona, Nevada and Michigan. Eligibility is based on physical location when you trade, and users must be 21 or older.

    Source: novig.com ↗ · checked 5 Nov 2026Read the review →

  • DraftKings PredictionsBroker6.3Available

    DraftKings' own availability page (updated 2026-07-22) lists 48 states for Predictions, plus DC and US territories. Access depends on physical location and excludes tribal land. Sports markets vary by state; the breakdown is shown only as an image that could not be read. The official availability page and Predictions Terms returned 403.

    Source: dknetwork.draftkings.com ↗ · checked 26 Sept 2026Read the review →

  • FanDuel PredictsBroker6.2Available

    FanDuel Predicts is available in all 50 states and DC. Users must be 18+ and verify their identity. It is not available on or near tribal land.

    Source: support.fanduel.com ↗ · checked 26 Sept 2026Read the review →

  • Clients of Interactive Brokers LLC aged 21+ are eligible for event/forecast contracts; ForecastEx contracts on US election results are limited to eligible US residents.

    Source: interactivebrokers.com ↗ · checked 26 Sept 2026Read the review →

  • Crypto.com Prediction MarketsRegulated exchange5.8Available

    Prediction Trading (and Sports Event Trading) is a CFTC-regulated feature of the Crypto.com App, offered through Crypto.com | Derivatives North America. The help centre says it is available in the US only.

    Source: help.crypto.com ↗ · checked 26 Sept 2026Read the review →

  • Alpha ArcadeCrypto · on-chain5.1Available

    Not on Alpha Arcade’s list of restricted jurisdictions. Absence from the list does not by itself establish that an individual may use the platform.

    No country-specific source published · applies to every country not listed · checked 30 Sept 2026Read the review →

  • PredictItRegulated exchange3.9Available

    The Terms and Conditions limit participation to people aged 18 or older who are U.S. Persons. They name no US state as excluded. PredictIt runs under CFTC no-action relief.

    Source: predictit.org ↗ · checked 26 Sept 2026Read the review →

  • Manifold MarketsPlay money3.7Available

    Play-money mana trading is open to users 13+ (minors need a guardian). Outside the listed states, US residents aged 18+ can also enter prize drawings.

    Source: docs.manifold.markets ↗ · checked 26 Sept 2026Read the review →

  • DelphiCrypto · on-chain3.5Available

    Not on Delphi’s list of restricted jurisdictions. Absence from the list does not by itself establish that an individual may use the platform.

    Source: docs.delphi.fyi ↗ · applies to every country not listed · checked 30 Sept 2026Read the review →

  • RainCrypto · on-chain—Available

    Not on Rain’s list of restricted jurisdictions. Absence from the list does not by itself establish that an individual may use the platform.

    No country-specific source published · applies to every country not listed · checked 30 Sept 2026Read the review →

Available with restrictions 5

  • Polymarket USRegulated exchange7.3Restricted

    QCX LLC publishes no list of eligible or excluded states. A Nevada court granted a preliminary injunction against QCX LLC d/b/a Polymarket US on 29 May 2026 (Nevada Gaming Control Board). Missouri's Attorney General has sent a cease-and-desist over sports contracts, and New York has announced a lawsuit; neither state is marked closed because the operator has not said it geoblocks them.

    No country-specific source published · checked 28 Sept 2026Read the review →

  • PolymarketCrypto · on-chain6.9Restricted

    The international polymarket.com site is closed to US residents: no deposits and no trades. The help centre lists the US as blocked and the API docs list it as close-only. US residents are sent to the separate Polymarket US app, run by QCX LLC (a CFTC DCM). Polymarket US state-level eligibility was not verified because its ToS page loads its text client-side.

    Source: help.polymarket.com ↗ · checked 26 Sept 2026Read the review →

  • ProphetXRegulated exchange5.9Restricted

    ProphetX says it is “available nationwide” but publishes no excluded-state list; its help centre says access “is restricted from certain locations and IP addresses”. Connecticut reportedly ordered it to stop offering sports contracts to residents (September 2026); the order could not be read on the regulator’s site.

    No country-specific source published · checked 28 Sept 2026Read the review →

  • Underdog PredictionsRegulated exchange5.3Restricted

    Only in states where Underdog Predict operates: "Must be 18+ and present in a state where Underdog Predict operates". The operator's state list (help centre) could not be read, so other states are unconfirmed.

    Source: underdogsports.com ↗ · checked 1 Oct 2026Read the review →

  • FutuurCustodial · unregulated5.2Restricted

    Listed in the Terms (updated 24 Jan 2025) among countries whose residents may not use Real-Money Services. Play-money (Ooms) markets stay open, and the app tells users from Restricted Jurisdictions they can still bet play money.

    Source: help.futuur.com ↗ · checked 26 Sept 2026Read the review →

Not available 27

Not verified 13

Prediction markets in Connecticut: common questions

Are prediction markets legal in Connecticut?

Contested. Connecticut sent cease-and-desist letters to Kalshi and, in September 2026, to nine more companies. A federal court refused to block the state in August, and on 3 November the Second Circuit refused to pause enforcement during Kalshi’s appeal. Connecticut has sued Kalshi in its own courts, and the CFTC is suing Connecticut.

What betting apps are legal in Connecticut?

Sports betting in Connecticut: legal, regulated by the Department of Consumer Protection. Of the regulated prediction-market apps we review, 6 are open in Connecticut on our records, including Kalshi, OG, Novig, DraftKings Predictions and FanDuel Predicts. They offer event contracts under CFTC rules rather than state sports-betting licences, which some states dispute.

Is Kalshi legal in Connecticut?

Yes — our records show Kalshi open in Connecticut. KalshiEX is a CFTC-designated contract market and its Member Agreement names no US state as restricted. State court orders block some contract categories in Nevada, Washington and Michigan; elsewhere its contracts are available. Kalshi is in litigation with about 20 states, so this can change quickly.

Is Polymarket US legal in Connecticut?

Only in part. Polymarket US restricts access in Connecticut. QCX LLC publishes no list of eligible or excluded states. A Nevada court granted a preliminary injunction against QCX LLC d/b/a Polymarket US on 29 May 2026 (Nevada Gaming Control Board).

Missouri's Attorney General has sent a cease-and-desist over sports contracts, and New York has announced a lawsuit; neither state is marked closed because the operator has not said it geoblocks them.

Is Dexsport legal in Connecticut?

No. Dexsport is not available in Connecticut. General Terms: users must not reside in, be citizens of or be incorporated in the USA; using a VPN to get round this is prohibited.

Is OG legal in Connecticut?

Yes — our records show OG open in Connecticut. Help centre: “currently available in all U.S. states”, though some event contracts may be unavailable in some states (not named). App Store: “Available in all 50 US states”. New York has separate funding and portfolio articles.

Is Polymarket legal in Connecticut?

Only in part. Polymarket restricts access in Connecticut. The international polymarket.com site is closed to US residents: no deposits and no trades. The help centre lists the US as blocked and the API docs list it as close-only. US residents are sent to the separate Polymarket US app, run by QCX LLC (a CFTC DCM). Polymarket US state-level eligibility was not verified because its ToS page loads its text client-side.

Is Novig legal in Connecticut?

Yes — our records show Novig open in Connecticut. “Novig is available nationwide except Arizona, Nevada, Michigan and Ohio” (Novig’s state page, updated 4 November 2026); its help centre still lists only Arizona, Nevada and Michigan. Eligibility is based on physical location when you trade, and users must be 21 or older.

Is DraftKings Predictions legal in Connecticut?

Yes — our records show DraftKings Predictions open in Connecticut. DraftKings' own availability page (updated 2026-07-22) lists 48 states for Predictions, plus DC and US territories. Access depends on physical location and excludes tribal land. Sports markets vary by state; the breakdown is shown only as an image that could not be read. The official availability page and Predictions Terms returned 403.

Is FanDuel Predicts legal in Connecticut?

Yes — our records show FanDuel Predicts open in Connecticut. FanDuel Predicts is available in all 50 states and DC. Users must be 18+ and verify their identity. It is not available on or near tribal land.

Is Underdog Predictions legal in Connecticut?

Only in part. Underdog Predictions restricts access in Connecticut. Only in states where Underdog Predict operates: "Must be 18+ and present in a state where Underdog Predict operates". The operator's state list (help centre) could not be read, so other states are unconfirmed.