IG Group Holdings PLC shares declined by 4.8% to 1390p, extending a selloff that began on July 31 when the group published its first-half 2026 results and revealed a proposed purchase of Underdog, a U.S. operator of daily fantasy sports and prediction markets, for total consideration of up to approximately $1.3 billion.
The online trading platform reported adjusted earnings per share of 68.9 pence and total revenue of £642.8 million for the six months ended June 30, 2026. Those headline results matched analyst forecasts, but investors reacted negatively to a number of competing concerns that accompanied the numbers.
Among the points that appear to be driving the stock weaker are rising operating costs and a contracting EBITDA margin disclosed in the results. Separately, the proposed Underdog acquisition introduces execution risk and material regulatory uncertainty. The company flagged the possibility of litigation and review at multiple levels in the U.S., including the potential for Supreme Court involvement and state-level challenges to prediction markets.
IG also announced a pause in its share buyback program. Management indicated that the repurchase program is not expected to resume until 2027 and that any restart will depend on completion of a planned redomicile and the group s other capital demands.
Customer metrics provided additional nuance. IG reported organic active customer growth of approximately 13%, a measure that excludes recent acquisitions. That contrasts with a 66% growth rate when contributions from acquisitions are included, highlighting the degree to which deal activity has influenced top-line expansion.
Separately, the group outlined a proposed restructuring that would redomicile the company to Jersey. The plan would see existing shareholders exchange their current shares one-for-one into a new entity through a court-approved scheme of arrangement. That restructuring is subject to sign-off by the Financial Conduct Authority and wider regulatory approvals, with management targeting completion in the final quarter of 2026. Market participants have treated the plan as unresolved, with the combination of regulatory contingency and the potential changes to the company s corporate structure adding to near-term uncertainty.
Management has scheduled a Strategy Update event in London on October 22, 2026, where it plans to present a refreshed strategy, an updated capital allocation framework and detailed guidance on medium-term financial targets. The company said that the update will follow the substantial completion of its strategic review, but until that event investors lack the upgraded guidance that might alleviate current concerns.
Market context also suggests the pressure on the shares is company-specific. U.S. equity indices were modestly higher on the day, which market observers read as indicating broader risk sentiment was not the primary driver of the decline in IG Group stock. In the near term, analysts and investors are likely to watch closely for progress on the Underdog regulatory picture, the timetable for redomicile and buyback resumption, and any additional colour provided ahead of the October strategy presentation.
What this means in plain terms
- Results that matched forecasts did not prevent investor concern about rising costs and margin pressure.
- The proposed Underdog deal introduces material regulatory and execution uncertainty that is weighing on sentiment.
- Capital return plans are on hold until 2027 and contingent on structural changes and capital needs, reducing near-term shareholder support mechanisms.