 Shares of Greenbrier Companies Inc. GBX, -5.21 were indicated up a little more than 1 in premarket trading Wednesday, freight railcar and marine barge maker swung to fiscal second-quarter profit that was double what was expected and reported revenue that more than doubled, as Russias invasion of Ukraine has led to growth in rail freight. Net income for the quarter to Feb. 28 was 12.8 million, or 38 cents a share, after a loss of 9.1 million, or 28 cents a share, in the year-ago period. 