BUZZ — China's Yuanjie Semiconductor jumps on robust earnings estimates

* Shares of Yuanjie Semiconductor Technology jump 6.5% to 1,195 yuan, on track for the biggest one-day pct gain since September 7 * Stock on course to snap four straight declining sessions * China-based optical chips producer expects its Q3 net profit to jump 578.9%-659.7% y/y and revenue up 264.56%-292.60% y/y due to growth in data center business * YTD, stock up 167.9%, benchmark CSI300 Index ddown 7.6% (Reporting by Donny Kwok) ((donny.kwok@thomsonreuters.com)