Online dating: Investors fall out of love with Cupid.com The Edinburgh firm, which owns around 30 websites such as uniformdating.com and maturedatinguk.com, was forced to tell the stock market it was under scrutiny after shares crashed by as much as 13pc in morning trading. Although Cupid claimed there was no "material reason" for the plunge in value, it said it was "aware" of the radio programme, which will air on BBC Radio 5 Live on Sunday. "Cupid is currently co-operating fully with the programme makers to respond to their questions and to clarify that the group only acts in a legal and appropriate manner," it said. The firm would not disclose details of the investigation. However, it is thought to focus on the issue of scammers who set up fake profiles on dating websites, and ask whether online dating businesses do enough to protect their customers. The investigation, fronted by Adrian Goldberg, follows television shows like MTV's Catfish, which follows people who believe they have fallen in love online, only to discover that the target of their affections was in fact a fraudster. Cupid, which was founded as Easydate by technology entrepreneurs Bill Dobbie and Max Polyakov, recovered some of its lost ground in afternoon trading but was still down 18.20 at 138.30p. However, not everyone was rattled. Analysts at Numis said Cupid's share price did not reflect its strong trading performance. Although there may be dishonest people on the websites, that is "also true of our local pub" and Cupid "has systems to diminish such use which is harmfull to its business," they said in a note. In addition to dating websites that target niche sectors, such as the elderly or parents, the AIM-listed company also runs hugely popular sites such as benaughty.com, which invite users to find a "casual partner."