William Hill Owner 888 Soars as UK Gambling Veterans Eye Shakeup

888 Holdings Plc, the owner of British betting chain William Hill, soared to the highest level in more than four months after a group of gambling industry veterans began pushing for changes at the bookmaker.

Shares of 888 jumped as much as 22% in Wednesday morning trading, extending the previous day’s 14% gain. They were up 20% at 10:33 a.m. in London, putting the company on track for the biggest daily gain since April and giving it a market value of £431 million ($536 million).

The investor group has built a 6.6% stake in London-listed 888, according to a ...