Underdog Predictions Review

One thing to get straight before anything else: this page is not about Underdog’s pick’em fantasy game. Underdog runs two very different products under one app, and they sit on opposite sides of the law. The daily-fantasy “Pick’em” and “Drafts” products are covered in our separate Underdog DFS review. Everything below is about Underdog Predictions — the yes/no event contracts that clear through Underdog’s own CFTC-registered exchange. For the wider landscape, see our prediction markets hub.

On July 30, 2026, Underdog agreed to be acquired by IG Group, the FTSE 100 financial-technology company that owns the IG trading brand and the US options broker tastytrade. The structure, per IG’s regulatory announcement and reporting from Sportico and Financial Magnates, is a fixed upfront payment of about 1.1 billion dollars — an enterprise value roughly 2.4 times Underdog’s net revenue for the 12 months ended June 2026 — plus an earnout of up to about 200 million dollars tied to 2026 revenue and positive EBITDA, for total consideration of up to about 1.3 billion dollars. IG is also assuming roughly 160 million dollars of existing Underdog debt, and the deal is being part-funded by a reported 450 million dollar short-term leveraged loan arranged by Barclays and Goldman Sachs.

Some outlets have cited a much larger “up to 2.15 billion dollars” figure. That number is only reachable if you add a separate management incentive plan, reported at up to 850 million dollars, that sits outside the purchase price and is funded by Underdog’s own future earnings. That plan pays eligible employees only on strong outperformance — reporting ties the maximum to Underdog delivering EBITDA of at least roughly 400 million dollars in 2028 and 700 million dollars in 2029. In other words, the “2.15 billion” headline is a theoretical ceiling that requires the company to more than sextuple its current profitability; the real transaction value is the up-to-1.3-billion figure. For a USA player, the practical takeaways are simpler: the deal is subject to US antitrust clearance under the Hart-Scott-Rodino Act, closing is expected in late 2026 or early 2027, and IG has said Underdog will keep running as a standalone brand. IG has also signaled it may push Underdog beyond sports into election and crypto-price contracts over time.

Why IG paid up: Underdog reported about 952,500 monthly active users across the first half of 2026, up from about 835,700 a year earlier, and roughly 466 million dollars in net revenue for the 12 months through June 2026 (up about 21 percent). Most importantly, it flipped from heavy losses to a positive 59.6 million dollars of EBITDA in that period, versus a negative 52.8 million dollars the year before. IG said the acquisition would more than double its US revenue and grow its US monthly active customer base more than tenfold, taking the US to roughly 40 percent of group revenue. By regulated notional volume, Underdog had become one of the largest US prediction-market venues — most coverage ranks it third or fourth behind Kalshi and Robinhood, having processed on the order of 6.5 billion dollars in notional volume since launching in September 2025.

IG Group is a FTSE 100 online-trading company, historically a leader in contracts-for-difference and spread betting, that has spent recent years building a US footprint — most visibly through its ownership of tastytrade, the US options and futures brokerage. Buying Underdog is IG’s biggest bet on prediction markets and, per the company, would take the US to roughly 40 percent of group revenue on a pro-forma basis, up from about 22 percent. IG has been explicit that it sees Underdog partly as a top-of-funnel product: a way to bring a large, sports-minded US audience into its ecosystem and, over time, cross-sell them into financial trading through tastytrade and IG’s own platforms. IG has also said it is evaluating expanding prediction markets into crypto, macroeconomic, cultural and political outcomes beyond the current sports core.

For a USA player, the practical implications are mixed. On the plus side, a public, regulated parent with real balance-sheet depth reduces the risk that the venue quietly disappears, and IG’s derivatives experience is directly relevant to running a CFTC exchange. On the caution side, the “funnel” framing means the product may over time be pushed toward IG’s broader trading suite, and account terms could evolve after closing. The deal is not done: it needs Hart-Scott-Rodino antitrust clearance and is expected to close in late 2026 or early 2027. Until then, Underdog keeps operating as it does today, as a standalone brand with its own management.

Underdog launched in 2020 as a daily-fantasy operator and built its brand on “Pick’em,” a same-game parlay-style fantasy product. That business drew the same legal heat every pick’em operator has faced from state gaming regulators who argue pick’em-against-the-house is really sports betting. Rather than fight that battle everywhere, Underdog spent 2025 and 2026 pivoting hard toward the federal prediction-market framework, where a CFTC registration provides a national footprint that does not depend on 50 separate state gaming licenses. The DFS product still exists — again, that is the subject of our separate Underdog DFS page — but the prediction exchange is where the company placed its bet on the future, and it is what IG actually bought.

Two other 2026 events round out the picture, and both point the same direction — away from state-licensed gambling and toward the federal framework. By December 2025, Underdog had exited its state-regulated sportsbook operations in North Carolina and Missouri, walking away from the traditional betting-license model. And in March 2026, amid the pivot, Underdog laid off about 20 percent of a workforce of roughly 500. Those were not signs of distress so much as a company reallocating everything behind the exchange — a strategy that produced the profitability swing IG paid for four months later. CEO and co-founder Jeremy Levine framed the logic bluntly: “Prediction markets are largely about sports, and Underdog is the best at sports.”

Because both products live in one app and both let you “pick” outcomes, users constantly conflate them — and the differences are not cosmetic, they are legal and financial. The table below draws the line. For the fantasy side in full, use our Underdog DFS review; this page stays on the prediction exchange.

The reason this distinction matters beyond trivia: the two products face opposite legal risks. The fantasy pick’em product is exactly what several state regulators have attacked as unlicensed sports betting, while the prediction exchange lives under federal registration. Understanding which one you are using tells you which rulebook — and which consumer protections — actually apply to your money.

Underdog Predictions is an event-contract exchange, not a sportsbook, and the difference matters at the mechanical level. You do not bet against Underdog at fixed odds. You buy and sell binary (Yes/No) contracts that settle at 1 dollar if the event happens and 0 dollars if it does not. The price of a contract, somewhere between 1 cent and 99 cents, is effectively the market’s implied probability of the outcome. Buy a “Yes” contract at 60 cents and you are risking 60 cents to make 40 cents; the contract pays out 1 dollar if you are right and nothing if you are wrong.

Here is a concrete example drawn from how the product is priced in practice. Suppose the Chiefs are trading at 50 cents to win. You buy the “Yes” contract, and Underdog adds an exchange fee of about 10 cents, so your all-in cost is around 60 cents. If the Chiefs win, the contract settles at 1 dollar and your profit is about 40 cents on that 60-cent stake; if they lose, you are out the full 60 cents. Because contracts trade on an exchange, prices move in real time as the market reprices the outcome, and Underdog lets you cash out early — sell your position back into the market before settlement — without a penalty, locking in a gain or cutting a loss. That early-exit ability is one of the genuine structural advantages event contracts have over a traditional straight bet.

Because this is an exchange, someone has to be on the other side of your trade. On a mature venue that is other users; on a newer, sports-concentrated exchange like UDX, liquidity is seeded by market makers. UDX has said trading generally stays open outside announced maintenance windows and that liquidity will be provided by at least one market maker. For you as a trader, that means you can usually get filled, but on thinner markets the spread between the buy and sell price can be wider than on the deepest venues — another reason to check the current price before you commit rather than assuming a tight, sportsbook-style line.

Underdog packages this in two ways. The single-contract exchange experience is the pure prediction-market product: pick an outcome, buy or sell the contract, exit whenever. Underdog also offers “Prediction Picks,” a multi-selection format that will feel familiar to anyone who used its fantasy pick’em — you combine several contract outcomes into one ticket for a larger potential payout. The important legal-and-labeling point is that both are built on the regulated event-contract rails, which is what lets Underdog offer them under CFTC oversight rather than a state sportsbook license. Settlement, position limits and the rulebook are defined by the exchange, not by state gaming regulations.

Underdog leans hard into sports — that is the entire pitch — but the exchange lists a broader menu than the sportsbook framing suggests. As of August 1, 2026, the categories include:

The menu is narrower than a politics-and-everything venue like Polymarket and more sports-concentrated than a generalist like Kalshi — which is by design. Underdog is trying to be the best sports prediction venue, not the widest market. If your interest is deep political or crypto markets, Underdog is not the deepest pool; if it is sports, it is one of the more sports-native exchanges available.

On the sports side, Underdog has ported the three bet types most bettors actually use into contract form:

That trio covers the core of straight sports wagering, expressed as event contracts. What Underdog is more cautious about, at least relative to the political and macro contracts some rivals list, is the exotic and easily-manipulated end of the sports menu. The CFTC’s own June 2026 rulemaking direction signaled that contracts on things like individual player injuries and referee decisions are the categories most likely to be barred, and sports leagues (the NBA and NFL among them) have been pressing regulators to restrict manipulable contracts. Underdog’s sports-forward but relatively conventional bet-type set — winners, spreads and totals — keeps it in the safer zone of that debate. As always with a fast-moving product, verify the exact market and prop availability inside the app before relying on it.

Underdog operates its prediction market nationally under CFTC registration, but it deliberately does not offer it everywhere. As of August 1, 2026, coverage reporting around the July launch put availability at roughly three to four dozen states, with the product unavailable in about 13 jurisdictions including Nevada and Washington, D.C. Underdog’s own help center is the authoritative source and describes a two-tier structure rather than a single on/off list:

Prediction markets are not “legal in all 50 states,” and any review that tells you so is wrong. The accurate framing, as of August 1, 2026, is that CFTC-registered exchanges operate nationally under federal registration while a large number of states actively litigate, some have won court orders, and access varies by operator and by the class of contract. What makes Underdog’s legal position distinct from Kalshi’s is its strategy: where Kalshi has sued states preemptively and pushed into contested markets, Underdog has largely chosen avoidance — geofencing out of the hot states rather than testing them in court.

The core dispute is whether sports event contracts are federally regulated swaps as defined by the Commodity Exchange Act (so commodities regulators would hold exclusive sway and no state gambling law could reach them) or unlicensed sports betting under state law. Federal courts have split. The industry’s biggest win came from the Third Circuit on April 6, 2026 in KalshiEX LLC v. Flaherty, a 2-1 ruling that sports event contracts are swaps and that the CEA supersedes New Jersey’s gambling laws as applied to those contracts on a CFTC-registered exchange. But that was a preliminary ruling, not a final merits decision, and the more consequential case is the Ninth Circuit’s consolidated Nevada appeal, argued April 16, 2026 and still pending as of August 1, 2026, where the panel appeared skeptical of the platforms. A ruling for Nevada would create a direct circuit split and push the question toward the Supreme Court.

Underdog benefits from that broader CFTC umbrella and from the Kalshi and CFTC litigation without being the one carrying the spear. As of August 1, 2026, Underdog does not appear as a named defendant in the marquee state enforcement actions that target Kalshi, Robinhood, Coinbase, Polymarket and Crypto.com. Underdog’s exposure is instead managed through where it chooses to switch the product on:

• Nevada: the most aggressive state, where the Gaming Control Board went after Kalshi and Polymarket and a Carson City judge granted a state restraining order in March 2026. Underdog simply does not offer its prediction market in Nevada, avoiding the contempt exposure Kalshi took on by staying.
• New York: where a federal judge declined to grant Kalshi a preliminary injunction in early July 2026 and, on July 31, 2026, Attorney General Letitia James filed a state-court petition alleging Kalshi runs an illegal unlicensed gambling operation. Underdog treats New York as a restricted state.
• Arizona, Ohio, Massachusetts, Michigan, Tennessee, Kentucky, Illinois, Pennsylvania: all states with active enforcement, court orders or restrictive legislation, and all in Underdog’s limited-access group. Arizona in particular produced, on May 5, 2026, the first district-level merits ruling holding that state gambling statutes cannot be enforced against CFTC-regulated markets under federal preemption — a platform-favorable decision — yet Underdog still keeps the product restricted there.
• Minnesota: Minnesota passed the country’s first law prohibiting prediction markets (signed May 18, 2026), but a federal judge suspended the ban on July 27, 2026, finding federal preemption. Underdog operates in Minnesota, consistent with that injunction — though the same judge signaled a narrower permanent ban could still reach contracts that are not true swaps, so this remains live.

The net effect: Underdog’s map of available states is, in large part, a conservative reading of this litigation. It plays where the legal risk is lowest and sits out where states are fighting, which is a very different risk posture from the operators testing the courts. That said, becoming a DCM operator in July 2026 changed Underdog’s own exposure — it is now the exchange, not merely a distributor, so if the Ninth Circuit or the Supreme Court ultimately rules that sports event contracts are gambling, Underdog is directly in scope rather than one step removed. As of August 1, 2026, no such adverse final ruling exists.

On user funds: if a state forces an exit, operators across this sector have generally allowed customers to close out and withdraw what they are holding, and some court orders have required it — but there is no across-the-board legal guarantee, which is one more reason a CFTC-regulated exchange is not the same consumer-protection environment as a state-licensed sportsbook. For the broader question of how any of this maps to your state, see our guide to whether online gambling is legal.

Underdog’s headline cost is an exchange fee of roughly 10 cents per contract, though the exact fee varies by market. This is the crucial number for anyone comparing Underdog to a sportsbook or to a zero-vig exchange. On the Chiefs-at-50-cents example above, a 10-cent fee on a 50-cent contract is a meaningful bite — it raises your break-even and functions much like a book’s vig, just expressed per contract rather than baked into the odds. Underdog keeps that fee now that it owns the exchange, which is precisely the economic reason it built the in-house stack.

What Underdog does not charge is a withdrawal fee, and there is no separate commission stacked on top of the per-contract fee. So the practical cost model is: the price of the contract (the implied probability) plus the per-contract exchange fee, with nothing on the way out. Compared with a peer-to-peer, make/take exchange that advertises near-zero vig, Underdog is not the cheapest venue on a per-trade basis; compared with a traditional sportsbook’s hold, whether it is cheaper depends on the specific line. Sharp users should price the fee into every contract before assuming the exchange is a better deal than a book.

Underdog’s prediction product uses standard fintech rails. As documented in independent reviews as of August 1, 2026, the minimum deposit is around 10 dollars, and deposits can be made by debit card, Apple Pay and Trustly (bank transfer). Withdrawals are handled through methods such as PayPal, Venmo and Paysafe, with no withdrawal fee and a typical processing time of about 24 hours. As with any regulated financial account, expect identity verification (KYC) on withdrawal, and expect the available methods to vary somewhat by state and over time. Because this is a derivatives account rather than a gambling account, your funds sit in that FCM/exchange structure, not in a state-regulated sportsbook wallet.

The flow will be familiar if you have used any regulated trading app, and it is deliberately different from opening a sportsbook bet slip. As of August 1, 2026, the practical steps are:

• Confirm eligibility. You must be 18 or older and physically located in an eligible state at the moment you trade — Underdog checks your location, not your residence, so a resident of an eligible state cannot trade while sitting in Nevada, for example.
• Verify your identity. As a CFTC-regulated financial account, Underdog runs standard KYC checks before you can fund or withdraw.
• Deposit. The minimum is about 10 dollars, funded by debit card, Apple Pay or Trustly bank transfer.
• Pick a market and a side. Choose an event, then buy the Yes or No contract at its current price. Remember the roughly 10-cent-per-contract exchange fee is added to what you pay.
• Manage or hold. Watch the price move in real time. You can sell your position early to lock a gain or cut a loss, or hold to settlement, where a winning contract pays 1 dollar and a losing one pays nothing.
• Withdraw. Cash out to PayPal, Venmo or Paysafe with no withdrawal fee, typically within about 24 hours.

Support runs through an always-available Help Center with market explanations and FAQs, plus live chat and email for account holders. As of August 1, 2026, live chat requires you to be logged in to an active account, which means prospective users cannot easily reach a human before signing up — a common gap across this sector. There is no widely advertised 24/7 phone line for the prediction product. For a financial product where settlement disputes and market-resolution questions can be high-stakes, the reliance on chat and email rather than phone support is worth factoring in, though it is standard for CFTC-regulated app-based exchanges rather than an Underdog-specific weakness.

This is the section every prediction-market review should slow down on, because the regulatory swap changes what protections you get. Because Underdog Predictions is regulated by the CFTC as a derivatives exchange rather than by state gaming regulators, it sits outside the state consumer-protection framework that governs sportsbooks. In concrete terms, as of August 1, 2026, that means:

• Minimum age is 18, not the 21 required for mobile sports betting in most states. This age gap is, in fact, the central allegation in New York’s action against a rival operator — regulators view an 18-plus gambling-like product as a consumer-protection problem.
• No state self-exclusion registry. If you have self-excluded from state-licensed sportsbooks, that exclusion does not automatically cover a CFTC exchange like Underdog.
• No state complaint process or state-supervised dispute resolution. Your recourse runs through the exchange’s own rules and the CFTC, not a state gaming board.

Prediction markets have a specific integrity problem that a sportsbook does not: because these are financial contracts, someone with non-public information can trade on it the way an insider trades a stock, and 2026 produced the sector’s first criminal cases. In April 2026, the Department of Justice charged an Army master sergeant over Polymarket trades on a military operation; in May 2026, the CFTC charged a Google engineer with insider trading on Polymarket contracts tied to a corporate product; and in July 2026 a White House staffer became the subject of a federal investigation over Kalshi trades. None of these involved Underdog, but they define the environment Underdog now operates in as an exchange operator rather than a distributor. Sports markets carry their own manipulation concerns — the reason the NBA and NFL have pressed the CFTC to restrict easily-gamed contracts, and the reason the CFTC’s June 2026 rulemaking direction targeted contracts on player injuries and referee decisions for prohibition. Underdog’s conservative, winner/spread/total sports menu keeps it away from the most manipulable contract types, but as the exchange of record it now carries surveillance and settlement-integrity responsibilities it did not have when Crypto.com or Kalshi listed its contracts.

The context that explains both the IG price tag and the state litigation is how quickly this sector has scaled. Combined monthly volume across the two largest venues, Kalshi and Polymarket, rose from under 5 billion dollars in September 2025 to roughly 24 billion dollars by April 2026, at points exceeding the amount wagered monthly through legal US sportsbooks. Underdog is not in that top tier — Kalshi and Polymarket together account for the large majority of total prediction-market volume — but processing on the order of 6.5 billion dollars in notional volume in under a year, from a standing start, is what vaulted it to third or fourth by regulated volume and made it an attractive acquisition. The flip side of that growth is the regulatory backlash: the same surge that drew IG’s money also drew cease-and-desist letters, state lawsuits and the court orders that shape where Underdog can legally switch its product on.

Tax treatment of prediction-market winnings is genuinely unsettled as of August 1, 2026. The IRS has issued no formal classification of event-contract gains, and the sector disagrees on whether they are gambling income, capital gains or Section 1256 contracts. Reporting also differs by platform: some CFTC exchanges do not issue 1099-B forms for event contracts. Because Underdog now clears trades through its own exchange and FCM, its reporting could differ from a brokerage-distributed product, and it could change once the IRS provides guidance. Do not assume your gains are or are not reported for you — keep your own records and consult a tax professional. This is not tax advice.

This is consistent with the sector — regulated exchanges generally do not run sportsbook-style deposit matches or free-bet offers, both because the derivatives framework treats these as financial accounts and because the economics do not resemble a book’s. Underdog’s fantasy products may run their own separate promotions, but those do not apply to the exchange, and you should not choose a prediction venue based on a sign-up offer that does not exist.

Underdog occupies a specific niche — sports-native, app-first, mid-sized — and it is best understood against its peers:

The one-line summary: Underdog is the sports specialist of the group, backed — pending the close — by a deep-pocketed public parent in IG, but with a narrower market menu and a more conservative state footprint than the biggest generalist venues.

The most common friction points reported around Underdog’s prediction product, as of August 1, 2026, are the ones inherent to the format rather than to Underdog specifically: the per-contract fee eating into thin-margin trades, the confusion of two very different products (fantasy pick’em and event contracts) living in one app, and availability whiplash as the geofence changes. Users should also watch the transition period — a pending acquisition means account terms, product scope and even branding could evolve once IG takes over, and IG has openly discussed expanding into new contract categories. None of these are dealbreakers, but they are the realities of using a young product inside a fast-moving legal and corporate environment.

Underdog Predictions is one of the most coherent products in the prediction-market space precisely because the company committed to it fully — selling off state sportsbook operations, buying the exchange, taking the layoffs, and turning profitable in the process, which is what convinced IG Group to pay up to 1.3 billion dollars. For a sports-first USA player in an eligible state, it offers a clean, well-designed exchange with the bet types you already know, real-time pricing and penalty-free cash-out. The trade-offs are equally clear: a real per-contract fee, a narrow non-sports menu, a consumer-protection framework that is thinner than a state sportsbook’s, no bonus, and a footprint that deliberately skips the states where the law is hottest.

Best for: sports-first traders in eligible states who value real-time pricing and penalty-free cash-out, and who understand they are trading a financial contract rather than placing a bet. Look elsewhere if: you want a deep politics or crypto book, a welcome bonus, or the fuller responsible-gambling toolkit and dispute protections of a state-licensed sportsbook. If you price in the fee and set your own limits, Underdog is a credible, well-capitalized venue — just keep the two Underdog products, and the still-unsettled law behind this one, firmly separate in your head.

This review is based on Underdog’s own announcements and help-center eligibility documentation, IG Group’s July 30, 2026 acquisition disclosure and H1 2026 results, and reporting from Sportico, Financial Magnates, Covers, Casino.org, The Lines and other trade and news outlets, cross-checked against our internal prediction-markets legal reference current to August 1, 2026. Every legal claim is dated because this area changes weekly. Where sources disagreed — particularly on the exact number of available states and on the “up to 2.15 billion dollars” deal figure — we described the range and explained the discrepancy rather than picking a single number. State availability, fees and deal status should be re-verified in the app and in official filings before you act on them.

This review is for informational purposes only and does not constitute legal, financial or tax advice. Must be of legal age. If you or someone you know has a gambling problem, call 1-800-522-4700.