The soaring value of bitcoin and other cryptocurrencies comes despite growing warnings over a price bubble

The price of bitcoin, the world’s best-known cryptocurrency, has smashed through $5,000 (€4,217) to a new all-time high. Bitcoin is now trading at $5(...)

 Tony Ferguson has called on Conor McGregor to “defend or vacate” his UFC lightweight title.  Photograph: Alex Trautwig/Getty Images

UFC president Dana White says Conor McGregor intends to return to the Octagon by the end of the year with Tony Ferguson calling out the Irish fighter (...)

Conor McGregor in a fashion shoot for The Irish Times in 2014. Photograph: David Sleator

Jamie D’Alton’s introduction to Conor McGregor is probably the same as most people’s. It came via the Late Late Show. D’Alton had produced a film cal(...)

New accounts show the cash pile at Conor McGregor’s promotions firms  increased by almost €100,000 last year. File photograph: Ethan Miller/Getty Images

The cash pile at Conor McGregor’s Irish-based promotions firm swelled to more than €333,000 last year. Accounts for McGregor Sports and Entertainment(...)

 Conor McGregor: has proven himself to have considerable commercial and media acumen. Photograph: Ethan Miller/Getty

The Dublin-born mixed martial arts superstar, Conor McGregor, is facing a fresh setback to his plan to cash in on his name by launching a whiskey bran(...)

Mixed martial arts champion Conor McGregor could speak in the United States Congress to help with a campaign to extend the legal protections enjoyed b(...)

The value of the best-known digital currency, bitcoin, has risen eightfold in the past year. Photograph:  Benoit Tessier/Reuters

The ambition that gave birth to the InterPlanetary File System (IPFS) is as immodest as the name. The brainchild of a Silicon Valley start-up called P(...)

 Canelo Alvarez  and WBC, WBA and IBF middleweight champion Gennady Golovkin face off during a news conference at MGM Grand Hotel & Casino  in Las Vegas on Wednesday ahead of their fight on Saturday.  Photograph:  Ethan Miller/Getty Images

On the inside of Saul Alvarez’s left biceps is tattooed a faded message that he embraced a long time ago: “No boxing, no life.” He smiles as he explai(...)

Canelo Alvarez prepares to jump rope during a media workout in Los Angeles ahead of his middleweight fight with Gennady Golovkin. Photograph:  Harry How/Getty Images

It is time for boxing to fix its house. Two weeks after Floyd Mayweather and Conor McGregor did each other a mutual favour in a cross-discipline publi(...)

Starbucks has presented virtually no threat whatsoever to Ireland’s independent coffee sector. According to figures, Ireland’s independent cafe sector grew by 8.5 per cent last year.  Photograph: Dara Mac Donaill

It is almost two decades since the animated television series South Park brilliantly satirised the predictable shrieks of anticapitalist outrage that (...)