** Shares of Lenovo 0992.HK jump as much as 30.6% to HK$25.7, their all-time high since debut in February 1994

** Stock last up 21%, on track for the best day since December 2008

** Top pct gainer in Hang Seng Index .HSI and Hang Seng TECH Index .HSTECH, which are up 0.5% and 0.1% respectively

** Goldman Sachs, with a "Buy" rating on Lenovo, lifts target price to HK$27 from HK$12.53, saying Lenovo's strong Mar-Q echoes Goldman's positive view that the impact from rising memory costs is manageable and Lenovo enjoys strong bargaining power across customers and suppliers

** CLSA lifts target price to HK$21 from HK$12.90, saying Lenovo should benefit from the recovery of the PC shipment cycle

** Citi lifts Lenovo target price to HK$20 from HK$12.60, Macquarie raises price to HK$21.75 from HK$12.93, and DBS up price to HK$23.50 from HK$19

** Last week, Lenovo reported a better-than-expected 27% jump in quarterly revenue, as strong consumer demand for PCs ahead of potential price hikes helped the world's largest computer maker expand its market share

** Rival Dell DELL.N on Thursday boosted its annual revenue and profit expectations after it posted forecast-beating first-quarter revenue with second-quarter forecasts above estimates