IG Group's Underdog Acquisition: A Deep Dive into the Deal, Revenue Dynamics, and Regulatory Crossroads

By jili tutorial · October 7, 2026

IG Group’s Underdog Acquisition: A Deep Dive into the Deal, Revenue Dynamics, and Regulatory Crossroads

Overview: A Transformational Bet on U.S. Prediction Markets

In July 2026, FTSE 100-listed IG Group Holdings plc announced its intention to acquire Underdog, a U.S.-based daily fantasy sports and prediction markets operator, for up to $1.3 billion. This deal represents a strategic pivot for IG, a traditional spread-betting and CFD provider, into the rapidly growing prediction markets segment. But as IG’s latest trading update reveals, the transition is not without turbulence—both in its core business and in the fragmented regulatory environment it must navigate.

This guide unpacks the key financial data, the contrasting fortunes of IG and Underdog, the regulatory split in Europe over prediction markets, and what investors and industry watchers should expect next.

Financial Snapshot: Q3 2026 Performance

IG Group’s Core Business: A Revenue Decline Amid Lower Retention

IG Group reported expected third-quarter revenue of approximately £240 million, down about 14% from £280.1 million in the same period a year earlier. Net trading revenue is projected at around £210 million, compared with £249.5 million in Q3 2025.

The primary driver of this decline is a drop in revenue retention—the percentage of customer trading income that IG keeps as revenue. In Q3 2026, retention fell to approximately 70%, below the roughly 80% average since IG introduced market-making changes in the second half of 2025. Lower retention typically occurs when market conditions are less supportive, meaning fewer opportunities for profitable market-making or wider spreads.

Example of retention impact:
If a customer trades £1 million in notional value, and IG earns £1000 in spread revenue, retention of 70% means IG keeps £700; the rest is lost to hedging costs or adverse price movements. A drop from 80% to 70% can significantly compress margins.

CEO Breon Corcoran acknowledged the headwind but expressed confidence: “Lower Q3 revenue reflected reduced OTC revenue retention in less supportive market conditions, and I remain confident in meeting our medium-term guidance.”

Underdog’s Explosive Growth: Revenue More Than Doubles

In stark contrast, Underdog’s net revenue soared during the same third quarter, rising more than 100% year-on-year to approximately $105 million. This growth comes just months after IG agreed to acquire the company (announced 30 July 2026) and well ahead of the deal’s expected closing in late 2026 or early 2027, subject to U.S. regulatory approvals.

IG noted that the fourth quarter is seasonally important for Underdog, accounting for more than a third of its 2025 revenue. This suggests that Underdog’s full-year 2026 revenue could be substantially higher, depending on NFL season performance, major political events, and other prediction market catalysts.

Context for Underdog’s business model:
Underdog operates primarily in daily fantasy sports (DFS) and prediction markets under a U.S. licence stack regulated by the Commodity Futures Trading Commission (CFTC). Its revenue model typically includes entry fees, commissions on trades, and subscription services. The doubling of revenue indicates strong user acquisition and engagement, likely fueled by the 2026 FIFA World Cup and midterm elections in the U.S.

Deal Structure and Timing

IG agreed to acquire Underdog for an aggregate value of up to $1.3 billion, broken down as:

Upfront consideration based on an enterprise value of approximately $1.1 billion
Earnout of up to $200 million, contingent on performance targets

Completion requires clearance under the Hart-Scott-Rodino Antitrust Improvements Act and other U.S. regulatory approvals. IG expects the deal to close in late 2026 or early 2027.

Strategic rationale:
IG plans to scale Underdog through its existing U.S. brokerage, tastytrade, and through its own international platform serving the UK and Europe. This creates a cross-border pipeline for prediction market offerings—though the regulatory landscape outside the U.S. remains highly uncertain.

IG’s 2026 Outlook: Lowered Guidance and Cost Pressures

Revenue Growth Revised Downward

In its half-year results (reported 30 July 2026), IG expected full-year results in line with market expectations. However, the Q3 trading update has prompted a revision: IG now expects 2026 total revenue to grow in a mid-single-digit percentage range, down from earlier forecasts.

Key assumption: The mid-single-digit growth is based on the core business recovering retention rates and stable market conditions, but does not yet include contributions from Underdog, as the deal is not closed.

Non-Recurring Costs and EBITDA Margin

IG is undertaking two major restructuring initiatives:

Planned move to a Jersey holding company – a corporate tax optimisation strategy
Restructuring announced on 8 July 2026 – likely involving headcount reduction and operational streamlining

The total non-recurring costs for these initiatives are expected to be approximately £30 million for 2026, of which £16.4 million was already reported in the first half. Excluding these costs and Underdog acquisition expenses (which are contingent on deal closing), IG expects a 2026 EBITDA margin in the low 40s percent (i.e., around 42-44%).

Comparison: In 2025, IG’s EBITDA margin was above 50% in the first half. The drop reflects both revenue headwinds and one-off cost impacts.

IG shares closed at 962p on 6 October 2026, down 2.43% on the day. This is the lowest close of 2026 so far, and represents a staggering 44% drop from the 1,706p close on 30 July (the last trading day before the Underdog deal was announced).

The share price trajectory tells a clear story:

Sharp decline immediately after the acquisition announcement (market questioned the valuation and integration risk)
Further drop of more than a fifth on 2 October 2026—the day of the trading update—when IG revealed lowered revenue guidance and lower retention

Investor takeaway: The market is pricing in a combination of execution risk on the Underdog deal, deterioration in IG’s core OTC derivatives business, and uncertainty around international expansion of prediction markets.

European Regulatory Split: Are Prediction Market Users Traders or Bettors?

One of the most contentious issues surrounding the IG-Underdog deal is how European regulators classify prediction market participants. This question directly affects whether IG can offer similar products to its European client base.

The Two Camps

Regulator / Official	Stance	Rationale
Gibraltar Gambling Commissioner (Andrew Lyman)	Users are traders	Prediction markets are derivatives; should be regulated as financial instruments. Gibraltar introduced a dedicated prediction markets framework on 13 July 2026.
Malta Gaming Authority (MGA) CEO (Charles Mizzi)	Users are bettors	Prediction markets involve wagering on outcomes; operators are applying for licences under gaming law in Malta.

Kalshi’s Perspective

Udesh Jha, chief risk officer at Kalshi (a leading U.S. prediction market platform), noted that the company is in discussions with the European Securities and Markets Authority (ESMA) and other national regulators. However, Jha does not expect to fully set up in the EU soon due to fragmented rules across member states.

UK Outlook

Martyn Elliott, director of SBC Insights, predicted that the UK will eventually regulate prediction markets “in some form, if only for institutional investors.” He added: “Eventually it will definitely happen.”

Implication for IG: If IG intends to offer prediction markets outside the U.S.—especially in the UK and Europe—it must navigate a patchwork of regulatory regimes. A Gibraltar-based entity could serve as a hub under a “trader” classification, while a Malta entity would be required to treat users as bettors. The UK’s approach could tip the scales, but it remains undefined.

Why This Matters for Underdog’s Integration

Underdog’s current operations are fully compliant under the CFTC regime in the U.S., which treats prediction markets as futures or swaps. IG’s own platform serves clients in the UK and Europe under financial conduct rules (e.g., FCA in the UK). If IG tries to blend these product offerings internationally, it will need to determine which regulatory framework applies and whether dual licensing is feasible.

What Comes Next: Key Dates and Milestones

Upcoming Events

8 October 2026 – IG hosts a virtual seminar on Underdog for institutional investors and analysts. This event is likely to provide deeper insight into Underdog’s financials, growth strategy, and integration plan.
22 October 2026 – IG will give more details on Q3 trading and a strategy update on the same day. This is a critical moment for investors to gauge management’s confidence in the turnaround.

Deal Completion Timeline

The Underdog acquisition remains subject to U.S. regulatory clearances, primarily under the Hart-Scott-Rodino Act. IG expects completion by late 2026 or early 2027. Any delay could prolong the current uncertainty and further pressure the share price.

Potential Scenarios

Optimistic case: Underdog’s revenue continues to compound >100% annually, regulatory clarity emerges in Europe, and IG’s core business stabilises retention near 80%. Share price recovery possible.
Moderate case: Underdog growth slows, regulatory fragmentation persists, IG’s retention remains below 75%. The deal still closes but integration costs rise.
Pessimistic case: U.S. regulators block or impose conditions on the deal, or IG fails to secure regulatory approval for European expansion. Underdog remains a standalone U.S. asset, limiting synergy.

Summary and Key Takeaways

IG Group is acquiring Underdog for up to $1.3 billion, with Underdog’s Q3 net revenue more than doubling to $105 million.
IG’s own Q3 revenue fell ~14% to £240 million due to lower OTC retention (70% vs. 80% average).
IG has lowered its 2026 total revenue growth forecast to mid-single digits, citing market conditions.
Non-recurring costs of £30 million (Jersey move and restructuring) will compress EBITDA margin to low 40s.
IG shares are at a 2026 low of 962p, down 44% since the Underdog deal announcement.
European regulators remain split: Gibraltar sees prediction market users as traders; Malta sees them as bettors. UK is expected to regulate eventually.
Next milestones: Underdog seminar on 8 Oct 2026, Q3 details and strategy update on 22 Oct 2026.

The Underdog deal represents a high-risk, high-reward gambit for IG. Success hinges on maintaining Underdog’s growth momentum, resolving the European classification puzzle, and stabilising IG’s core revenue retention. For now, the market is betting against a smooth outcome—but the story is far from over.