Exchange operator Cboe's profit soars on tax benefit

Feb 9 (Reuters) - Cboe Global Markets Inc's fourth-quarter profit surged as the largest U.S. options exchange benefited from a $191.5 million one-time gain related to new U.S. tax laws.

Net income allocated to common stockholders rose to $254.6 million or $2.26 per share in the quarter ended Dec. 31, from $44.7 million or 55 cents per share, a year earlier.

Revenue more than tripled year-over-year to $620.7 million. (Reporting by Nikhil Subba in Bengaluru)