** HK shares of Bilibili 9626.HK jump 7.4% to HK$150.6, highest since April 2

** Stock set for biggest one-day pct gain since February 21; top pct gainer on Hang Seng Tech Index .HSTECH

** U.S.-listed stock BILI.O climbed 0.9% on Tuesday

** Chinese mobile games group's Q1 net revenue up 24% y/y, net loss narrows 99% y/y

** Adjusted net profit of 361.5 mln yuan ($50.2 mln) vs year-ago adjusted net loss of 455.9 mln yuan

** Citi maintains "neutral", saying Q1 bottom line better than expected, with ads growth momentum expected to remain at decent level

** Jefferies keeps "buy", raises PT to $29 from $28.60

** Says revenue in line with expectations, non-GAAP operating profit above estimates

** Expects multiple drivers to boost ad growth

** YTD, stock up 4.9%

($1 = 7.2088 Chinese yuan renminbi)

(Reporting by Donny Kwok)

((donny.kwok@thomsonreuters.com))