(AsiaGameHub) –   Although FanDuel has established itself as the leading revenue-generating sportsbook in the U.S., Flutter remains under the shadow of a long-standing option held by Fox. This right pertains to 18.6% of FanDuel and maintains a significant variable regarding valuation, strategy, and licensing.

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Good to Read

• Fox is permitted to acquire 18.6% of FanDuel in a single transaction at any time prior to December 2030.
• The option price was valued at $4.8 billion at the conclusion of 2025 and increases by 5% annually.
• FanDuel currently accounts for nearly half of Flutter’s revenue, rendering the issue difficult to overlook.

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Fox Option Remains Over FanDuel

FanDuel provides Flutter with its most powerful U.S. growth engine, yet a portion of that potential upside could still be diverted. Under the terms associated with the 2019 acquisition of The Stars Group, Fox retains an option to purchase 18.6% of FanDuel, which can only be exercised in full.

This is significant because FanDuel has become central to Flutter’s operations. Since acquiring FanDuel in 2018, the brand has matured into the country’s top revenue-producing sportsbook, while growth in mature markets like Ireland and the U.K. has slowed. Essentially, FanDuel now handles the majority of the heavy lifting for the broader group.

Flutter highlighted this risk once more in its 2025 10-K report. The company stated: “In the event that Fox exercises the Fox Option, we would be required to sell to Fox a significant minority stake in our FanDuel business.” It further added: “If at that point Fox’s consent is required for certain actions we wish to take and we are unable to obtain it, we may not be able to pursue elements of our business strategy.”

The price is a critical factor. Following arbitration between the two companies, Fox secured the right to buy that 18.6% stake at a fixed price of $4.8 billion as of December 31, 2025, with a 5% annual compounded increase if Fox defers. Fox has until December 2030 to act, must pay in cash, and would require gaming licenses to finalize the transaction.

Currently, this arrangement does not suggest an immediate deal is imminent. Flutter held a market value of approximately $20 billion in early April 2026, similar to its position when the arbitration value was determined in 2023, according to the provided source material. At this valuation, Fox would see minimal direct upside from exercising the option.

Nevertheless, the overhang persists. If FanDuel’s value appreciates faster than the 5% annual hike in the strike price, the economics become more enticing for Fox. This implies that some future upside in FanDuel is effectively capped for Flutter, as Fox already possesses a path to buy in at a pre-set formula.

There is also an operational dimension to consider. A Fox stake approaching 20% would impact not only valuation calculations but also decision-making within FanDuel should consent rights be activated. Flutter has clarified that such a configuration could constrain parts of its wider business strategy.

Licensing introduces an additional layer of complexity. FanDuel offers sportsbook, online casino, and daily fantasy sports products across more than twenty U.S. states. Fox would need regulatory approval across these gaming markets before it could assume ownership. Fox previously attempted a direct betting venture in the market via Fox Bet with The Stars Group, but that brand closed in 2023 after maintaining less than 1% of national market share.

Another unresolved question exists outside the balance sheet. It remains unclear how a future Fox stake would integrate with Fox’s sports media assets. This is significant in a market where connections between media and betting are already prevalent. DraftKings, for instance, partners with ESPN as a sponsor and odds provider.

Flutter further solidified its control over FanDuel in 2025 by agreeing to purchase the 5% stake held by Boyd at an implied FanDuel valuation of roughly $31 billion. This deal emphasized the asset’s growing value and explains why the Fox option continues to resurface as a focal point.