 Sabre Corp. shares SABR, 1.79 jumped 6.6 in premarket trade Tuesday, after the online travel company posted a smaller-than-expected second-quarter loss and said it believes the travel recovery is on a long-term uptrend. The company had a net loss of 192.7 million, or 59 cents a share, for the quarter, narrower than the loss of 251.3 million, or 79 cents a share, posted in the year-earlier period. 