Determine the sentiment expressed in the news from financial perspective.
Options: negative, positive

United Airlines Holdings Inc. UAL, +10.00% stock rallied more than 11% Thursday after the airline reported first-quarter earnings late Wednesday and surprised investors by saying it expects to report a profit this year. The stock was on track to close at its highest since Nov. 9, when it closed at $52.81 and on pace for its largest one-day percentage increase on that date as well, when it rose 19.15%.
positive