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Spreadex is the only confirmed corporate-related betting brand associated with Sporting Index in 2026. However, the UK Competition and Markets Authority (CMA) has ordered the two businesses to separate following competition concerns.
Sporting Index does not have a large sister-site network like many traditional UK bookmakers. Its relationship with Spreadex is also subject to an ongoing regulatory process.
Sporting Index Sister Sites: Current List
| Betting brand | Connection | UKGC account | Status |
|---|---|---|---|
| Sporting Index | Main brand | 27343 | Active licence |
| Spreadex | Related through acquisition | 8835 | Separate operator |
Sporting Index’s UKGC account lists only sportingindex.com and mobile.sportingindex.com as active domains. Neither is a separate sister betting brand.
This means Spreadex is the only established corporate-related brand, rather than one of several bookmakers operating under Sporting Index’s licence.
Why Is Spreadex Connected to Sporting Index?
Spreadex acquired Sporting Index’s consumer-facing business in 2023, bringing together two major names in UK sports spread betting.
The CMA investigated the acquisition because both companies competed in a specialist market with limited alternatives.
The regulator concluded that the deal substantially reduced competition and required Spreadex to sell the acquired Sporting Index business.
The key developments were:
| Date | What happened |
|---|---|
| 2023 | Spreadex acquired Sporting Index’s consumer business |
| September 2025 | CMA confirmed competition concerns and required separation |
| October 2025 | Final undertakings were accepted |
| June 2026 | Court of Appeal refused Spreadex permission to appeal |
As of October 2026, the CMA’s published case record does not confirm a completed divestment. The relationship could therefore change once an independent buyer takes over.
Is Sporting Index Still Operating?
Sporting Index Limited retains an active UK Gambling Commission licence under account 27343.
Its registered activities include remote real-event betting and linked gambling software.
The CMA’s decision requires a change in ownership arrangements. It does not, by itself, mean Sporting Index must close or stop serving customers.
Sporting Index is especially associated with sports spread betting, where returns depend on how far an actual result differs from the quoted spread. This differs from conventional fixed-odds bets, where the potential return is determined when the bet is placed.
Spread betting can also produce losses greater than the initial amount a customer expects to risk, depending on the bet and its terms.
Do Sporting Index and Spreadex Share Accounts?
The companies have separate UKGC operator accounts. Their corporate relationship does not establish that customers can transfer balances, use the same login or share promotional benefits.
Before opening an account, check the individual bookmaker’s:
- Account verification and withdrawal rules.
- Deposit limits and self-exclusion arrangements.
- Available betting products and risk disclosures.
Customers should not assume that restrictions imposed by one provider can be avoided by using the other.
Are There Other Sporting Index Sister Sites?
No additional sister betting brands were found under Sporting Index Limited’s UKGC account.
Other companies offering sports spread betting or fixed-odds wagering may be competitors, but that does not make them sister sites.
For broader bookmaker ownership comparisons, explore our UK Betting Sister Sites Guide or see how Independent UK Bookmakers differ from operator groups.
You can also compare a more conventional network in our BetVictor Sister Sites article.
What Happens When Sporting Index Is Sold?
The CMA’s required divestment is intended to restore competition between Sporting Index and Spreadex.
Once the sale is completed, the brands may no longer qualify as corporate sister sites.
For existing customers, however, a sale should not be taken as evidence that accounts, outstanding bets or withdrawal arrangements have automatically changed. Any changes need to be confirmed through official customer communications.
The official CMA Spreadex–Sporting Index merger inquiry provides the regulatory timeline and latest published decisions.
Final Verdict
Spreadex is Sporting Index’s only confirmed corporate-related betting brand, but the relationship is being unwound following the CMA’s competition ruling.
Sporting Index has its own active UK gambling licence, and no wider sister-site network has been verified under that account.
Readers should distinguish the historical ownership connection from the brands’ separate licences and check for any completed sale before treating Spreadex as a current sister site.
Last reviewed: 10 October 2026. Gambling is restricted to adults aged 18 and over in Great Britain. Sports spread betting carries a risk of substantial financial loss.
